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Santos IS, Echevarria P, Tovo-Rodrigues L, Matijasevich A, Domingues MR, Hallal PC. Are nocturnal awakenings at age 1 predictive of sleep duration and efficiency at age 6: Results from two birth cohorts. Sleep Med X 2024; 7:100105. [PMID: 38312370 PMCID: PMC10837084 DOI: 10.1016/j.sleepx.2024.100105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 02/06/2024] Open
Abstract
Objective To investigate the association of nighttime awakenings at 12 months with the duration and efficiency of nighttime sleep at 6 years of age. Methods Data from two population-based prospective studies (The Pelotas 2004 and The Pelotas 2015 Birth Cohorts) were used. Information on nighttime awakenings was provided by mothers during the 12-month follow-up interview. Infants who awakened >3 times after sleep onset at 12 months were considered frequent wakeners. Sleep duration and sleep efficiency were obtained by actigraphy at the 6-year follow-up. Children wore the device at the wrist of the non-dominant arm continuously for 3-7 days, including at least one weekend day. Unadjusted and adjusted beta coefficients were obtained by linear regression for each cohort separately. Results 2500 children from the 2004 and 2793 from the 2015 cohort had full information on nighttime awakenings at 12 months and actigraphy at 6 years and were analyzed. Prevalence of frequent wakeners was 6.3 % and 5.9 % in the 2004 and 2015 cohort, respectively. Mean bedtime and wake-up time at 6 years were, respectively, 23:23 and 08:41 h in the 2004 cohort, and 00:10 and 09:00 h int the 2015 cohort. Nighttime sleep lasted on average 7.54 and 7.24 h respectively in the 2004 and the 2015 cohort, and the sleep efficiency was 81.1 and 82.5 % respectively. In adjusted analyses, no associations were found between awakening at 12 months and sleep duration or sleep efficiency at 6 years of age. Conclusion In both cohorts sleep duration and efficiency were below the recommendation for school-age children (respectively 9-11 h and 85 %). There was no relationship between the number of nighttime awakenings at 12 months and sleep duration or efficiency at 6 years.
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Affiliation(s)
- Ina S. Santos
- Post-graduate Program in Epidemiology, Federal University of Pelotas, Brazil
| | - Priscila Echevarria
- Post-graduate Program in Epidemiology, Federal University of Pelotas, Brazil
| | | | - Alicia Matijasevich
- Departamento de Medicina Preventiva, Faculdade de Medicina FMUSP, Universidade de São Paulo, SP, Brazil
| | - Marlos R. Domingues
- Post-graduate Program in Physical Education, Federal University of Pelotas, Brazil
| | - Pedro C. Hallal
- Post-graduate Program in Epidemiology, Federal University of Pelotas, Brazil
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Li X, Lin Y, Huang L, Lin H, Cheng X, Li S, Hu R, Liao J. Effects of web neonatal intensive care unit diaries on the mental health, quality of life, sleep quality, care ability, and hormone levels of parents of preterm infants in the neonatal intensive care unit: A randomized controlled trial. Intensive Crit Care Nurs 2024; 83:103697. [PMID: 38583413 DOI: 10.1016/j.iccn.2024.103697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 03/20/2024] [Accepted: 03/28/2024] [Indexed: 04/09/2024]
Abstract
OBJECTIVE To examine the effects of web neonatal intensive care unit diaries on the mental health, quality of life, sleep quality, care ability, and hormone levels of parents of preterm infants in the neonatal intensive care unit. DESIGN Prospective randomized controlled parallel-group clinical trial. SETTING Maternal and Child Health Hospital, Fujian, China. METHODS The control group received routine neonatal intensive care unit care, while the intervention group received a web neonatal intensive care unit diary based on routine care. Outcomes, including anxiety, depression, and post-traumatic stress disorder symptoms, quality of life, sleep quality, care ability, and cortisol and melatonin levels, were evaluated at T1 (Time 1, before the intervention), T2 (Time 2, immediately after the intervention), and T3 (Time 3, 1 month after the intervention). RESULTS Seventy pairs of parents of preterm infants in the neonatal intensive care unit were randomly allocated to two groups: intervention (n = 35) and control (n = 35). The anxiety scores in the intervention group were significantly lower at T2 and T3 than those in the control group (P < 0.001). The care ability scores in the intervention group were significantly higher at T2 and T3 (P < 0.001). The prevalence of post-traumatic stress disorder at T3 was significantly different between the groups (P = 0.040). No significant differences were observed in the quality of life or sleep quality between the groups at T2 and T3 (P > 0.05). No significant differences were observed in cortisol and melatonin levels between the groups (P > 0.05). CONCLUSIONS Web neonatal intensive care unit diaries effectively relieved anxiety symptoms, reduced the prevalence of post-traumatic stress disorder, and enhanced the care abilities of parents of preterm infants in the neonatal intensive care unit. IMPLICATIONS FOR CLINICAL PRACTICE Web neonatal intensive care unit diary can be considered in clinical practice as a convenient psychological intervention method, especially among parents of preterm infants in the neonatal intensive care unit.
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Affiliation(s)
- Xiaoting Li
- The School of Nursing, Fujian Medical University, Fuzhou, China; Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China
| | - Ying Lin
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China
| | - Long Huang
- Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Zhuhai, China
| | - Huimin Lin
- Fujian Maternity and Child Health Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, China
| | - Xiao Cheng
- The School of Nursing, Fujian Medical University, Fuzhou, China
| | - Sijia Li
- The School of Nursing, Fujian Medical University, Fuzhou, China
| | - Rongfang Hu
- The School of Nursing, Fujian Medical University, Fuzhou, China.
| | - Jinhua Liao
- The School of Nursing, Fujian Medical University, Fuzhou, China; The Nursing National Experimental Learning Demonstration Center, Fujian Medical University, Fuzhou, China.
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3
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Verkaar AJCF, Winkels RM, Kampman E, Luik AI, Voortman T. Associations of dietary patterns with objective and subjective sleep duration and sleep quality in a population-based cohort study. Sleep Med 2024; 119:365-372. [PMID: 38761605 DOI: 10.1016/j.sleep.2024.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/26/2024] [Accepted: 05/07/2024] [Indexed: 05/20/2024]
Abstract
OBJECTIVE To examine cross-sectional and longitudinal associations of various types of dietary patterns with self-reported sleep quality and with actigraphy-estimated sleep parameters in the prospective, population-based Rotterdam Study. METHODS For each participant, scores for five different dietary patterns were derived based on food frequency questionnaires; two pre-defined scores developed to estimate adherence to the Dutch dietary guidelines and to the Mediterranean diet; and three data-driven scores indicating a prudent, unhealthy and typical Dutch diet. In 2589 participants (median age 56.9 years; 58 % female), self-rated sleep quality was assessed with the Pittsburgh Sleep Quality Index. In 533 participants, actigraphs were worn for an average of 6.8 days (SD: 0.7) to estimate total sleep time, sleep onset latency, wake after sleep onset, and sleep efficiency. Sleep parameters were measured at baseline and 3-6 years later. Multiple linear regression was used to assess cross-sectional and longitudinal associations. RESULTS No statistically significant associations between dietary patterns and total sleep time, sleep onset latency, wake after sleep onset, sleep efficiency and subjective sleep quality were observed in cross-sectional or longitudinal analyses. To illustrate, the effect estimate for sleep duration was 2.7 min per night (95 % CI -2.1, 7.5) per 5 point increase in Mediterranean diet score in the cross-sectional analyses. Furthermore, in longitudinal analyses, the effect estimate for sleep duration was -1.0 min per night (95 % CI -5.2, 3.1) per SD increase in the prudent diet. CONCLUSIONS Our results suggest that dietary patterns are not associated with sleep in this population-based cohort study. TRIAL REGISTRATION Netherlands National Trial Register and WHO International Clinical Trials Registry Platform (ICTRP; https://apps.who.int/trialsearch/) shared catalogue number NL6645/NTR6831. Registered November 13th, 2017.
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Affiliation(s)
- Auke J C F Verkaar
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen, the Netherlands
| | - Renate M Winkels
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen, the Netherlands
| | - Ellen Kampman
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen, the Netherlands
| | - Annemarie I Luik
- Department of Epidemiology, Erasmus MC University Medical Center, Rotterdam, the Netherlands; Trimbos Institute, The Netherlands Institute of Mental Health and Addiction, Utrecht, the Netherlands
| | - Trudy Voortman
- Division of Human Nutrition and Health, Wageningen University & Research, Wageningen, the Netherlands; Department of Epidemiology, Erasmus MC University Medical Center, Rotterdam, the Netherlands.
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4
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Huang CH, Wong LC, Chu YJ, Hsu CJ, Wang HP, Tsai WC, Lee WT. The sleep problems in individuals with Rett syndrome and their caregivers. AUTISM : THE INTERNATIONAL JOURNAL OF RESEARCH AND PRACTICE 2024:13623613241254620. [PMID: 38853381 DOI: 10.1177/13623613241254620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
LAY ABSTRACT Sleep problems are common and impactful among individuals with Rett syndrome (RTT) and their caregivers. We examined the sleep patterns of 29 RTT patients and their primary caregivers using various assessment tools. The study found that a majority of the patients experienced sleep disturbances, with younger patients showing more sleep difficulties. Caregivers also reported poor sleep quality. The findings emphasize the need to address sleep problems in RTT management, as improving sleep quality can positively impact the well-being of individuals with RTT and their caregivers.
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Affiliation(s)
- Cheng-Hsien Huang
- Department of Pediatrics, Sleep Center, Yang-Ming Branch, Taipei City Hospital, Taipei, Taiwan
- University of Taipei, Taiwan
| | - Lee-Chin Wong
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Yen-Ju Chu
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
| | - Chia-Jui Hsu
- Department of Pediatrics, National Taiwan University Hospital Hsin-Chu Branch, Hsin-Chu, Taiwan
| | - Hsin-Pei Wang
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Pediatrics, National Taiwan University Hospital YunLin Branch, Yun-Lin, Taiwan
| | - Wen-Che Tsai
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Wang-Tso Lee
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan
- Graduate Institute of Brain and Mind Sciences, National Taiwan University Children's Hospital, Taipei, Taiwan
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5
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Murphy CJ, Saavedra JM, Ólafsson D, Kristófersdóttir KH, Arnardóttir ES, Kristjánsdóttir H. The training times of athletes could play a role in clinical sleep problems due to their associations with sleep difficulty scores. Sleep Health 2024:S2352-7218(24)00031-7. [PMID: 38834377 DOI: 10.1016/j.sleh.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 02/19/2024] [Accepted: 02/26/2024] [Indexed: 06/06/2024]
Abstract
OBJECTIVES Sleep is a key component of athletic recovery, yet training times could influence the sleep of athletes. The aim of the current study was to compare sleep difficulties in athletes across different training time groups (early morning, daytime, late evening, early morning plus late evening) and to investigate whether training time can predict sleep difficulties. METHODS Athletes from various sports who performed at a national-level (n = 273) answered the Athlete Sleep Screening Questionnaire (ASSQ) along with several other questionnaires related to demographics, exercise training, and mental health. From the ASSQ, a Sleep Difficulty Score (SDS) was calculated. Transformed SDS (tSDS) was compared across different training time categories using multiple one-way ANOVAs. A stepwise regression was then used to predict tSDS from various sleep-related factors. RESULTS SDSs ranged from none (31%), mild (38%), moderate (22%), and severe (9%). However, the one-way ANOVAs revealed training earlier or later vs. training daytime shifted the tSDS in a negative direction, a trend toward increased sleep difficulty. In particular, athletes training in the late evening (>20:00 or >21:00) had a significantly higher tSDS when compared to daytime training (p = .03 and p < .01, respectively). The regression model (p < .001) explained 27% of variance in the tSDS using depression score, age, training time, and chronotype score. CONCLUSION Among a heterogeneous sample of national-level athletes, 31% displayed moderate to severe SDSs regardless of their training time. However, when athletes trained outside daytime hours there was a tendency for the prevalence of sleep difficulties to increase.
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Affiliation(s)
- Conor J Murphy
- Physical Activity, Physical Education, Sport and Health Research Centre (PAPESH), Sports Science Department, School of Social Sciences, Reykjavik University, Reykjavik, Iceland; Reykjavik University Sleep Institute, School of Technology, Reykjavik University, Reykjavik, Iceland.
| | - Jose M Saavedra
- Physical Activity, Physical Education, Sport and Health Research Centre (PAPESH), Sports Science Department, School of Social Sciences, Reykjavik University, Reykjavik, Iceland; Reykjavik University Sleep Institute, School of Technology, Reykjavik University, Reykjavik, Iceland
| | - Daði Ólafsson
- Department of Psychology, Reykjavik University, Reykjavik, Iceland
| | | | - Erna Sif Arnardóttir
- Reykjavik University Sleep Institute, School of Technology, Reykjavik University, Reykjavik, Iceland
| | - Hafrún Kristjánsdóttir
- Physical Activity, Physical Education, Sport and Health Research Centre (PAPESH), Sports Science Department, School of Social Sciences, Reykjavik University, Reykjavik, Iceland
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6
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Saelee R, April-Sanders AK, Bird HR, Canino GJ, Duarte CS, Lugo-Candelas C, Suglia SF. Self-reported neighborhood stressors and sleep quality among Puerto Rican young adults. Sleep Health 2024; 10:295-301. [PMID: 38570224 PMCID: PMC11162948 DOI: 10.1016/j.sleh.2024.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 01/15/2024] [Accepted: 01/23/2024] [Indexed: 04/05/2024]
Abstract
OBJECTIVE To examine the association between changes in self-reported neighborhood stressors and sleep quality and determine whether this varied by sociocultural context among Puerto Rican young adults. METHODS Data come from the Boricua Youth Study Health Assessment, a sample of Puerto Rican young adults from San Juan, Puerto Rico, and South Bronx, New York (n = 818; mean age=22.9years). Sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI). Neighborhood social stressors (disorder, social cohesion, and safety) were parent-reported in childhood and self-reported in young adulthood and categorized into: low in childhood/young adulthood (reference group), high in childhood/low in young adulthood, low in childhood/high in young adulthood, and high in childhood/young adulthood. Sociocultural context was based on participant residence during childhood (San Juan vs. South Bronx). RESULTS Adjusting for sociodemographic factors, living with high neighborhood stressors in both childhood and young adulthood (prevalence ratios=1.30, 95% CI: 1.01, 1.66) was associated with overall poor sleep (PSQI score >5). Among PSQI components, living with high neighborhood stressors in young adulthood only or in both time periods was associated with worse subjective sleep quality and daytime dysfunction. Additionally, there were various associations between the neighborhood stressor measures and PSQI components. Results did not differ by sociocultural context. CONCLUSION Findings suggest that living with high levels of neighborhood stressors during childhood and young adulthood may have a cumulative adverse impact on sleep quality in young adulthood.
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Affiliation(s)
- Ryan Saelee
- Department of Epidemiology, Emory University, Atlanta, Georgia, USA.
| | - Ayana K April-Sanders
- Department of Statistics and Epidemiology, Rutgers School of Public Health, Piscataway, NJ
| | - Hector R Bird
- Department of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York City, New York, USA
| | - Glorisa J Canino
- Behavioral Sciences Research Institute, University of Puerto Rico Medical School, San Juan, Puerto Rico
| | - Cristiane S Duarte
- Department of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York City, New York, USA
| | - Claudia Lugo-Candelas
- Department of Psychiatry, New York State Psychiatric Institute, Columbia University Medical Center, New York City, New York, USA
| | - Shakira F Suglia
- Department of Epidemiology, Emory University, Atlanta, Georgia, USA
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7
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De Pasquale C, El Kazzi M, Sutherland K, Shriane AE, Vincent GE, Cistulli PA, Bin YS. Sleep hygiene - What do we mean? A bibliographic review. Sleep Med Rev 2024; 75:101930. [PMID: 38761649 DOI: 10.1016/j.smrv.2024.101930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 12/18/2023] [Accepted: 03/27/2024] [Indexed: 05/20/2024]
Abstract
There is no consensus on the definition of sleep hygiene and its components. We examined the definition of sleep hygiene based on its use in published studies. Four databases (Medline, EMBASE, PsycINFO and CINAHL) were searched from inception until December 31, 2021 for the phrase 'sleep hygiene' in the title or abstract. We identified 548 relevant studies in adults: 250 observational and 298 intervention studies. A definition of sleep hygiene was provided in only 44% of studies and converged on three themes: behavioural factors, environmental factors, and an aspect of control. Sleep hygiene components were explicitly defined in up to 70% of observational studies, but in only 35% of intervention studies. The most commonly considered components of sleep hygiene were caffeine (in 51% of studies), alcohol (46%), exercise (46%), sleep timing (45%), light (42%), napping (39%), smoking (38%), noise (37%), temperature (34%), wind-down routine (33%), stress (32%), and stimulus control (32%), although the specific details of each component varied. Lack of consistency in definitions of sleep hygiene and its components may hinder communication between researchers, clinicians, and the public, and likely limits the utility of sleep hygiene as an intervention.
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Affiliation(s)
- Carla De Pasquale
- Sleep Research Group, Charles Perkins Centre, University of Sydney, Australia
| | - Mary El Kazzi
- Sleep Research Group, Charles Perkins Centre, University of Sydney, Australia
| | - Kate Sutherland
- Sleep Research Group, Charles Perkins Centre, University of Sydney, Australia
| | - Alexandra E Shriane
- Appleton Institute, School of Health, Medical and Applied Sciences, Central Queensland University, Australia
| | - Grace E Vincent
- Appleton Institute, School of Health, Medical and Applied Sciences, Central Queensland University, Australia
| | - Peter A Cistulli
- Sleep Research Group, Charles Perkins Centre, University of Sydney, Australia; Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Australia; Department of Respiratory and Sleep Medicine, Royal North Shore Hospital, Australia
| | - Yu Sun Bin
- Sleep Research Group, Charles Perkins Centre, University of Sydney, Australia; Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Australia.
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8
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Chen S, Zhang M, Zhang W, Shao X, Yang X, Yang Z, Nan K. The Causal Association Between Blood Lead and Sleep Disorders: Evidence from National Health and Nutrition Examination Survey and Mendelian Randomization Analysis. J Epidemiol Glob Health 2024; 14:462-469. [PMID: 38372894 PMCID: PMC11176123 DOI: 10.1007/s44197-024-00199-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 01/22/2024] [Indexed: 02/20/2024] Open
Abstract
BACKGROUND Poor sleep quality is a global public health concern. This study aimed to identify the risk factors for sleep disorders and clarify their causal effects. METHODS Data were obtained from the National Health and Nutrition Examination Survey (NHANES) and Mendelian randomization (MR)-Base databases. Baseline characteristics of individuals with and without sleep disorders were compared. A multivariate logistic regression analysis was performed to calculate the effects of each variable on sleep disorders. Causal effects of blood lead levels and hypertension on sleep disorders were assessed using MR analysis. RESULTS In total, 3660 individuals were enrolled in the study. The prevalence of self-reported sleep disorders was 26.21%. Serum lead level, serum mercury level, serum retinol level, prevalence of hypertension, and daily vigorous work duration were significantly higher for those in the sleep disorders group than the control group. After adjusting for various covariates, the effects of serum lead and hypertension on sleep disorders were stable from logistic regression models 1-4. MR analysis showed that blood lead levels were causally related to the risk of sleep disorders (odds ratio (OR) = 1.09, 95% confidence interval (CI) 1.01-1.17, P = 0.030). There was no causal link between elevated blood pressure and sleep disorders (OR = 0.99, 95% CI 0.94-1.04, P = 0.757). Goodness-of-fit tests and sensitivity analyses were used to verify the reliability of the results. CONCLUSIONS Blood lead is positively and causally associated with an increased risk of sleep disorders. These findings provide a novel perspective regarding sleep protection. Taking effective measures to reduce lead exposure may significantly improve sleep health.
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Affiliation(s)
- Shengnan Chen
- Department of Joint Surgery, HongHui Hospital, Xi'an Jiaotong University, Xi'an, 710054, Shaanxi, China
- Medical Department, Xi'an Jiaotong University, Xi'an, 710048, Shaanxi, China
| | - Ming Zhang
- Department of General Practice, Honghui Hospital, Xi'an Jiaotong University, Xi'an, 710054, Shaanxi, China
| | - Weisong Zhang
- Department of Joint Surgery, HongHui Hospital, Xi'an Jiaotong University, Xi'an, 710054, Shaanxi, China
| | - Xiaolong Shao
- Department of Joint Surgery, HongHui Hospital, Xi'an Jiaotong University, Xi'an, 710054, Shaanxi, China
| | - Xiaobin Yang
- Hongdong County Hospital of Traditional Chinese Medicine, Hongdong, 041600, Shaanxi, China
| | - Zhi Yang
- Department of Joint Surgery, HongHui Hospital, Xi'an Jiaotong University, Xi'an, 710054, Shaanxi, China.
| | - Kai Nan
- Department of Joint Surgery, HongHui Hospital, Xi'an Jiaotong University, Xi'an, 710054, Shaanxi, China.
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9
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Guo C, Lan L, Yan Y, Kang M. Effects of acute exposure to hypoxia on sleep structure in healthy adults: A systematic review. Sleep Med Rev 2024; 75:101928. [PMID: 38614049 DOI: 10.1016/j.smrv.2024.101928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 03/14/2024] [Accepted: 03/21/2024] [Indexed: 04/15/2024]
Abstract
The sleep quality of lowlanders in hypoxic environments has become increasingly important with an increase in highland and alpine activities. This study aimed to identify the effects of acute exposure to hypoxia on the sleep structure of lowlanders and to analyze the changes in sleep indicators at varying levels of hypoxia. This review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Twenty-three studies were screened and included in the quantitative analysis. The results showed that acute exposure to hypoxia reduced sleep quality in lowlanders. Post-sleep arousal events and the percentage of N1 were significantly increased, whereas total sleep time, sleep efficiency, and the percentage of N3 and rapid eye movement sleep were significantly decreased in hypoxic environments. Acute exposure to hypoxia had the greatest negative impact on wakefulness after sleep onset (WASO). In addition, a larger decrease in sleep efficiency and higher increase in the percentages of N1 and WASO were observed when lowlanders were exposed to higher levels of hypoxia. This study clarifies the quantitative effects of acute hypoxic exposure on sleep in lowlanders based on original studies and explains the sleep disorders faced by lowlanders in hypoxic environments.
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Affiliation(s)
- Chao Guo
- Department of Architecture, School of Design, Shanghai Jiao Tong University, Shanghai, China
| | - Li Lan
- Department of Architecture, School of Design, Shanghai Jiao Tong University, Shanghai, China.
| | - Yan Yan
- Department of Architecture, School of Design, Shanghai Jiao Tong University, Shanghai, China
| | - Mengyuan Kang
- Department of Architecture, School of Design, Shanghai Jiao Tong University, Shanghai, China
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Yan J, Wen W, Song J, Liu A, Lorenzo-Blanco E, Shen Y, Zhang M, Kim SY. Understanding adjustment profiles among Mexican-origin adolescents over time: A focus on cultural risk and resilience factors. Child Dev 2024. [PMID: 38818954 DOI: 10.1111/cdev.14119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
This study used a three-wave longitudinal dataset to: identify adjustment profiles of U.S. Mexican-origin adolescents based on their physical, academic, and psychosocial health adjustment; track adjustment profile changes throughout adolescence; and examine the associations between cultural stressors, family obligation, and adjustment profile membership over time. Participants were 604 Mexican-origin adolescents (54% female, Mage = 12.41, SD = 0.97) in Texas (Wave 1: 2012-2015; Wave 2: 2013-2016; Wave 3: 2017-2020). Three concurrent profiles (Well-adjusted, Moderate, and Poorly-adjusted) emerged at each wave, whereas three transition profiles (Improved, Stable well-adjusted, and Overall poorly-adjusted) were identified across three waves. The results suggest that cultural stressors pose risks for Mexican-origin adolescents' adjustment, and family obligation values play a protective role in these associations.
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Affiliation(s)
- Jinjin Yan
- Psychology Department, Fordham University, New York City, New York, USA
| | - Wen Wen
- Department of Human Development and Family Sciences, University of Texas at Austin, Austin, Texas, USA
| | - Jiaxiu Song
- Department of Human Development and Family Sciences, University of Texas at Austin, Austin, Texas, USA
| | - Angelina Liu
- University of Texas at Austin, Austin, Texas, USA
| | | | - Yishan Shen
- Texas State University, San Marcos, Texas, USA
| | - Minyu Zhang
- Latino Research Institute, University of Texas at Austin, Austin, Texas, USA
| | - Su Yeong Kim
- Department of Human Development and Family Sciences, University of Texas at Austin, Austin, Texas, USA
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Li K, Liu W, Wu C, Wang L, Huang Y, Li Y, Zheng H, Shang Y, Zhang L, Chen Z. The anti-fatigue and sleep-aiding effects vary significantly among different recipes containing Ganoderma lucidum extracts. Heliyon 2024; 10:e30907. [PMID: 38770283 PMCID: PMC11103526 DOI: 10.1016/j.heliyon.2024.e30907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 05/07/2024] [Accepted: 05/07/2024] [Indexed: 05/22/2024] Open
Abstract
Aims This study aims to delve into the anti-fatigue and sleep-aiding effects of various formulations containing Ganoderma lucidum extracts. Materials and methods PGB [incorporating Ganoderma lucidum extract (GE), broken Ganoderma lucidum spore powder (GB) and Paecilomyces hepiali mycelium (PH)] and GBS [composed of GE, GB, and Ganoderma sinense powder (GS)] were chosen as representative recipes for this study. Mice were treated with these recipes or key components of Ganoderma lucidum for 14 consecutive days. Subsequently, a weight-bearing swimming experiment was conducted to assess the mice's exhaustion time and evaluate the anti-fatigue properties of the recipes. Sleep-aiding effects were analyzed by measuring the sleep latency and duration. Furthermore, levels of blood lactic acid, serum urea nitrogen, hepatic glycogen, muscle glycogen, and malondialdehyde (MDA) were measured in the livers and muscles. Key findings The anti-fatigue abilities of the tested mice were significantly improved after treatment with PGB and their sleep quality improved as well with GBS treatment. PGB treatment for 14 days could significantly prolong the exhaustion time in weight-bearing swimming (from 10.1 ± 0.5 min to 15.2 ± 1.3 min). Meanwhile, glycogen levels in the livers and muscles were significantly increased, while the levels of serum lactic acid, serum urea nitrogen, and MDA in the livers and muscles were significantly decreased. In contrast, mice treated with GBS for 14 days experienced significant improvements in sleep quality, with shortened sleep latency (from 6.8 ± 0.7 min to 4.2 ± 0.4 min), extended sleep duration (from 88.3 ± 1.4 min to 152.5 ± 9.3 min), and decreased muscle MDA levels. These results indicated that Ganoderma lucidum extracts can be used for anti-fatigue and or aid in sleeping, depending on how they are prepared and administered. Significance This study provides experimental evidence and theoretical basis for the development of Ganoderma lucidum recipes that are specifically designed to help with anti-fatigue and sleep.
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Affiliation(s)
- Kexin Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian Academy, University of Chinese Academy of Sciences, Fuzhou, Fujian, 350108, China
- College of Life Sciences, Fujian Agriculture and Forestry University Fuzhou, Fujian, 350002, China
| | - Wenzhen Liu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian Academy, University of Chinese Academy of Sciences, Fuzhou, Fujian, 350108, China
| | - Changhui Wu
- Fujian Xianzhilou Biological Science and Technology Co. Ltd., Fuzhou, Fujian, 350108, China
| | - Le Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian Academy, University of Chinese Academy of Sciences, Fuzhou, Fujian, 350108, China
| | - Yunmei Huang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, 350122, China
| | - Ye Li
- Fujian Xianzhilou Biological Science and Technology Co. Ltd., Fuzhou, Fujian, 350108, China
| | - Huimin Zheng
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Yanyu Shang
- College of Biological Science and Engineering, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Lei Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian Academy, University of Chinese Academy of Sciences, Fuzhou, Fujian, 350108, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhuo Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian Academy, University of Chinese Academy of Sciences, Fuzhou, Fujian, 350108, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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12
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Murphy C, Svansdottir SA, Dupuy O, Louis J. Does overreaching from endurance-based training impair sleep: A systematic review and meta-analysis. PLoS One 2024; 19:e0303748. [PMID: 38809828 PMCID: PMC11135706 DOI: 10.1371/journal.pone.0303748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 04/30/2024] [Indexed: 05/31/2024] Open
Abstract
BACKGROUND Overreaching is often linked to a deterioration in sleep quality, yet a comprehensive review is lacking. The aim of this systemic review and meta-analysis was to synthesise the literature and quantify the effect of overreaching from endurance-based training on sleep quality. METHOD The review was conducted following the PRISMA guidelines. The final search was conducted in May 2023 using four electronic databases (Web of Science Core Collection, MEDLINE, Cochrane Central Database, SPORTDiscus). Studies were included for a qualitative review, while random-effects meta-analyses were conducted for objective and subjective sleep. RESULTS AND DISCUSSION The search returned 805 articles. Fourteen studies were included in the systematic review; Three and eight articles were eligible for the meta-analyses (objective and subjective, respectively). On average, the overreaching protocols were sixteen days in length (6 to 28 days) and included exercise modalities such as cycling (number of studies [k] = 5), rowing (k = 4), triathlon (k = 3), running (k = 2), and swimming (k = 1). Actigraphy was the only form of objective sleep measurement used across all studies (k = 3), while various instruments were used to capture subjective sleep quality (k = 13). When comparing objective sleep quality following the overreaching intervention to baseline (or a control), there was a significant reduction in sleep efficiency (mean difference = -2.0%; 95% CI -3.2, -0.8%; Glass' Δ = -0.83; p < 0.01). In contrast, when comparing subjective sleep quality following the overreaching intervention to baseline (or a control), there was no effect on subjective sleep quality (Glass' Δ = -0.27; 95% CI -0.79, 0.25; p = 0.08). Importantly, none of the included studies were judged to have a low risk of bias. While acknowledging the need for more high-quality studies, it appears that overreaching from endurance-based training can deteriorate objective sleep without influencing the perception of sleep quality. PROTOCOL REGISTRATION This protocol was registered in The International Prospective Register of Systematic Reviews (PROSPERO) on 21st November 2022, with the registration number CRD42022373204.
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Affiliation(s)
- Conor Murphy
- Physical Activity, Physical Education, Sport and Health Research Centre (PAPESH), Sports Science Department, School of Social Sciences, Reykjavik University, Reykjavik, Iceland
| | - Steinunn Anna Svansdottir
- Physical Activity, Physical Education, Sport and Health Research Centre (PAPESH), Sports Science Department, School of Social Sciences, Reykjavik University, Reykjavik, Iceland
| | - Olivier Dupuy
- Laboratory MOVE (UR 20296), Faculty of Sport Sciences, University of Poitiers, Poitiers, France
| | - Julien Louis
- Research Institute for Sport and Exercise Sciences (RISES), Liverpool John Moores University, Liverpool, United Kingdom
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13
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Poppele I, Ottiger M, Stegbauer M, Schlesinger T, Müller K. Device-assessed physical activity and sleep quality of post-COVID patients undergoing a rehabilitation program. BMC Sports Sci Med Rehabil 2024; 16:122. [PMID: 38811993 PMCID: PMC11134673 DOI: 10.1186/s13102-024-00909-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 05/20/2024] [Indexed: 05/31/2024]
Abstract
BACKGROUND An infection with SARS-CoV-2 can lead to persistent symptoms more than three months after the acute infection and has also an impact on patients' physical activity behaviour and sleep quality. There is evidence, that inpatient post-COVID rehabilitation can improve physical capacity and mental health impairments, but less is known about the change in physical behaviour and sleep quality. METHODS This longitudinal observational study used accelerometery to assess the level of physical activity and sleep quality before and after an inpatient rehabilitation program. The study sample consists of 100 post-COVID patients who acquired COVID-19 in the workplace. Group differences related to sex, age, COVID-19 severity, and pre-existing diseases were also analysed. RESULTS Level of physical activity and sleep quality didn't increase after rehabilitation. Overall, there is a high extent of inactivity time and poor sleep quality at both measurement points. Regarding group differences, male patients showed a significantly higher inactivity time before rehabilitation, and younger patients (< 55 years) spend significant more time in vigorous physical activity than older patients. Post-COVID patients with pre-existing cardiovascular, respiratory, and metabolic disease show slightly less physical activity than post-COVID patients without these comorbidities. Female patients and younger patients showed better sleep quality in some sleep parameters at both measurement points. However, no differences could be detected related to COVID-19 severity. CONCLUSIONS Ongoing strategies should be implemented to address the high amount of inactivity time and the poor sleep quality in post-COVID patients.
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Affiliation(s)
- Iris Poppele
- Institute of Human Movement Science and Health, Faculty of Behavioral and Social Sciences, Chemnitz University of Technology, 09107, Chemnitz, Germany.
| | - Marcel Ottiger
- Institute of Human Movement Science and Health, Faculty of Behavioral and Social Sciences, Chemnitz University of Technology, 09107, Chemnitz, Germany
| | - Michael Stegbauer
- BG Hospital for Occupational Disease Bad Reichenhall, 83435, Bad Reichenhall, Germany
| | - Torsten Schlesinger
- Institute of Human Movement Science and Health, Faculty of Behavioral and Social Sciences, Chemnitz University of Technology, 09107, Chemnitz, Germany
| | - Katrin Müller
- Institute of Human Movement Science and Health, Faculty of Behavioral and Social Sciences, Chemnitz University of Technology, 09107, Chemnitz, Germany
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14
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Huang M, Zhang H, Wang H, Niu J, Luo B, Wu G, Li X, Yan J. Effects of Cadmium and Lead Co-exposure on Sleep Status in Rural Areas Northwestern China. Biol Trace Elem Res 2024:10.1007/s12011-024-04243-z. [PMID: 38801624 DOI: 10.1007/s12011-024-04243-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 05/16/2024] [Indexed: 05/29/2024]
Abstract
In this study, we explored how cadmium and lead co-exposure affects sleep status among residents of a polluted area and nature reserve in rural northwestern China. Cadmium and lead levels were measured using blood samples, and sleep status was evaluated using sleep questionnaires, with the main sleep indicators including sleep duration, sleep quality, bedtime, and staying up. Furthermore, cadmium-lead co-exposure levels were divided into three groups: high exposure, medium exposure, and low exposure. Subjects in the contaminated area had significantly higher exposure levels (p < 0.001) and more negative sleep indicators (p < 0.01). Significant differences were found for all four sleep indicators in the high exposure group compared to the low exposure group (p < 0.01). Moreover, the overall evaluation of sleep status with high cadmium-lead co-exposure had a negative impact. Our data suggest that cadmium-lead co-exposure has a negative effect on sleep status and may have a synergistic effect on sleep.
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Affiliation(s)
- Min Huang
- The First School of Clinical Medical, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430061, People's Republic of China
| | - Honglong Zhang
- The First School of Clinical Medical, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Haiping Wang
- The First School of Clinical Medical, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
- Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, Lanzhou, 730000, Gansu, People's Republic of China
| | - Jingping Niu
- Institute of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Bin Luo
- Institute of Occupational and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
| | - Gang Wu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, 430061, People's Republic of China
| | - Xun Li
- The First School of Clinical Medical, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China
- Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, Lanzhou, 730000, Gansu, People's Republic of China
- Department of General Surgery, The First Hospital of Lanzhou University, No.1 Donggang West Road, Chengguan District, Lanzhou, 730000, Gansu, People's Republic of China
| | - Jun Yan
- The First School of Clinical Medical, Lanzhou University, Lanzhou, 730000, Gansu, People's Republic of China.
- Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, Lanzhou, 730000, Gansu, People's Republic of China.
- Department of General Surgery, The First Hospital of Lanzhou University, No.1 Donggang West Road, Chengguan District, Lanzhou, 730000, Gansu, People's Republic of China.
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15
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Coelho J, Montagni I, Micoulaud-Franchi JA, Taillard J, Philip P, Plancoulaine S, Tzourio C. Why circadian rhythmicity matters: associations between sleep irregularity and mental health conditions during the Covid-19 health crisis. World J Biol Psychiatry 2024:1-18. [PMID: 38803010 DOI: 10.1080/15622975.2024.2359975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/22/2024] [Indexed: 05/29/2024]
Abstract
OBJECTIVE To assess the association between sleep irregularity, anxiety, and depression while controlling for other sleep dimensions and using a longitudinal design. METHODS Longitudinal cohort study which started in April 2020 during the first French lockdown in the general population. Follow-up questionnaires were completed in June 2020, a period without lockdown measures. Participants were asked about their sleep (regularity, duration, timing, complaints) and their anxiety (General Anxiety Disorder-7) and depressive (Patient Health Questionnaire-9) symptoms. RESULTS A total of 3745 participants were included (mean age: 28.9 years) with 2945 women (78.6%). At baseline, 38.1% (1428) of participants reported irregular sleep timing, 23.8% (891) anxiety and 28.9% (1081) depressive symptoms. In cross-sectional analyses, irregular sleep timing was associated with a 2.5-fold higher likelihood of anxiety and a 4-fold higher likelihood of depressive symptoms compared to regular sleepers. Associations were not explained by the other sleep dimensions and persisted in a longitudinal analysis, with irregular sleep timing at baseline being associated with anxiety (OR = 3.27[1.58-6.76]) and depressive symptoms (OR = 3.45[1.66-7.19]) during follow-up. CONCLUSION The results show a strong association between sleep irregularity and mental health. Furthers studies are needed to explore how sleep regularity could promote good mental health in non-clinical populations.
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Affiliation(s)
- Julien Coelho
- Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, U1219, CHU Bordeaux, F-33000 Bordeaux, France
- Service Universitaire de Médecine du Sommeil, CHU Bordeaux, F-33000 Bordeaux, France
- CNRS, SANPSY, UMR 6033, F-33000 Bordeaux, France
| | - Ilaria Montagni
- Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, U1219, CHU Bordeaux, F-33000 Bordeaux, France
| | - Jean-Arthur Micoulaud-Franchi
- Service Universitaire de Médecine du Sommeil, CHU Bordeaux, F-33000 Bordeaux, France
- CNRS, SANPSY, UMR 6033, F-33000 Bordeaux, France
| | - Jacques Taillard
- Service Universitaire de Médecine du Sommeil, CHU Bordeaux, F-33000 Bordeaux, France
- CNRS, SANPSY, UMR 6033, F-33000 Bordeaux, France
| | - Pierre Philip
- Service Universitaire de Médecine du Sommeil, CHU Bordeaux, F-33000 Bordeaux, France
- CNRS, SANPSY, UMR 6033, F-33000 Bordeaux, France
| | - Sabine Plancoulaine
- Université Paris Cité, Inserm, INRAE, Centre de Recherche en Epidémiologie et StatistiquesS (CRESS), F-75004 Paris, France
| | - Christophe Tzourio
- Univ. Bordeaux, Inserm, Bordeaux Population Health Research Center, U1219, CHU Bordeaux, F-33000 Bordeaux, France
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16
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Saidi O, Rochette E, Dambel L, St-Onge MP, Duché P. Chrono-nutrition and sleep: lessons from the temporal feature of eating patterns in human studies - A systematic scoping review. Sleep Med Rev 2024; 76:101953. [PMID: 38788519 DOI: 10.1016/j.smrv.2024.101953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 03/25/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024]
Abstract
An emerging field of research has revealed a bidirectional relationship between sleep and diet, highlighting the potential role of a healthy diet in improving sleep. However, the impact of chrono-nutrition on sleep remains less explored. Here we conducted a systematic scoping review, considering the multiple dimensions of chrono-nutrition, to describe the extent, range, and nature of the existing literature in this area (PROSPERO: CRD42021274637). There has been a significant increase in the literature exploring this topic over the past six years (almost 67 % of the evolving literature). A breakdown of the included studies was performed according to three major chrono-nutritional dimensions: meal timing [n = 35], irregular eating patterns [n = 84], and frequency of eating occasions [n = 3]. Meal timing included three sub-dimensions: breakfast skipping [n = 13], late eating [n = 16], and earlier vs later meals schedules [n = 6]. Irregular meal patterns included three sub-dimensions: diurnal fasting [n = 65], intermittent fasting [n = 16], and daily meal patterns [n = 3]. Frequency was the least studied dimension (n = 3). We provided a synthetic and illustrative framework underlining important preliminary evidence linking the temporal characteristics of eating patterns to various facets of sleep health. Nonetheless, much work remains to be done to provide chrono-nutrition guidelines to improve sleep health in the general population.
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Affiliation(s)
- Oussama Saidi
- JAP2S Laboratory, Toulon University, F-83041, Toulon, France.
| | - Emmanuelle Rochette
- JAP2S Laboratory, Toulon University, F-83041, Toulon, France; Department of Pediatrics, Clermont-Ferrand University Hospital, F-63000, Clermont-Ferrand, France; Clermont Auvergne University, INSERM, CIC 1405, CRECHE Unit, F-63000, Clermont-Ferrand, France
| | - Lou Dambel
- JAP2S Laboratory, Toulon University, F-83041, Toulon, France
| | - Marie-Pierre St-Onge
- Center of Excellence for Sleep & Circadian Research and Division of General Medicine, Department of Medicine, Columbia University Irving Medical Center, New York, NY, USA, 10032
| | - Pascale Duché
- JAP2S Laboratory, Toulon University, F-83041, Toulon, France
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Bauducco S, Gardner LA, Smout S, Champion KE, Chapman C, Gamble A, Teesson M, Gradisar M, Newton NC. Adolescents' trajectories of depression and anxiety symptoms prior to and during the COVID-19 pandemic and their association with healthy sleep patterns. Sci Rep 2024; 14:10764. [PMID: 38730014 PMCID: PMC11087504 DOI: 10.1038/s41598-024-60974-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 04/29/2024] [Indexed: 05/12/2024] Open
Abstract
The COVID-19 pandemic has seen a rise in anxiety and depression among adolescents. This study aimed to investigate the longitudinal associations between sleep and mental health among a large sample of Australian adolescents and examine whether healthy sleep patterns were protective of mental health in the context of the COVID-19 pandemic. We used three waves of longitudinal control group data from the Health4Life cluster-randomized trial (N = 2781, baseline Mage = 12.6, SD = 0.51; 47% boys and 1.4% 'prefer not to say'). Latent class growth analyses across the 2 years period identified four trajectories of depressive symptoms: low-stable (64.3%), average-increasing (19.2%), high-decreasing (7.1%), moderate-increasing (9.4%), and three anxiety symptom trajectories: low-stable (74.8%), average-increasing (11.6%), high-decreasing (13.6%). We compared the trajectories on sociodemographic and sleep characteristics. Adolescents in low-risk trajectories were more likely to be boys and to report shorter sleep latency and wake after sleep onset, longer sleep duration, less sleepiness, and earlier chronotype. Where mental health improved or worsened, sleep patterns changed in the same direction. The subgroups analyses uncovered two important findings: (1) the majority of adolescents in the sample maintained good mental health and sleep habits (low-stable trajectories), (2) adolescents with worsening mental health also reported worsening sleep patterns and vice versa in the improving mental health trajectories. These distinct patterns of sleep and mental health would not be seen using mean-centred statistical approaches.
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Affiliation(s)
- Serena Bauducco
- Flinders University, Adelaide, Australia.
- Center for Health and Medical Psychology, Örebro University, Fakultetsgatan 1, 701 82, Örebro, Sweden.
| | - Lauren A Gardner
- The Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, Australia
| | - Scarlett Smout
- The Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, Australia
| | - Katrina E Champion
- The Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, Australia
| | - Cath Chapman
- The Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, Australia
| | - Amanda Gamble
- The Woolcock Institute, Macquarie University, Sydney, Australia
| | - Maree Teesson
- The Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, Australia
| | - Michael Gradisar
- WINK Sleep Pty Ltd, Adelaide, Australia
- Sleep Cycle AB, Gothenburg, Sweden
| | - Nicola C Newton
- The Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, Australia
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18
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Fedele B, Williams G, McKenzie D, Giles R, McKay A, Olver J. Sleep Disturbance During Post-Traumatic Amnesia and Early Recovery After Traumatic Brain Injury. J Neurotrauma 2024. [PMID: 38553904 DOI: 10.1089/neu.2023.0656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/07/2024] Open
Abstract
After moderate to severe traumatic brain injury (TBI), sleep disturbance commonly emerges during the confused post-traumatic amnesia (PTA) recovery stage. However, the evaluation of early sleep disturbance during PTA, its recovery trajectory, and influencing factors is limited. This study aimed to evaluate sleep outcomes in patients experiencing PTA using ambulatory gold-standard polysomnography (PSG) overnight and salivary endogenous melatonin (a hormone that influences the sleep-wake cycle) assessment at two time-points. The relationships between PSG-derived sleep-wake parameters and PTA symptoms (i.e., agitation and cognitive disturbance) were also evaluated. In a patient subset, PSG was repeated after PTA had resolved to assess the trajectory of sleep disturbance. Participants with PTA were recruited from Epworth HealthCare's inpatient TBI Rehabilitation Unit. Trained nurses administered overnight PSG at the patient bedside using the Compumedics Somté portable PSG device (Compumedics, Ltd., Australia). Two weeks after PTA had resolved, PSG was repeated. On a separate evening, two saliva specimens were collected (at 24:00 and 06:00) for melatonin testing. Results of routine daily hospital measures (i.e., Agitated Behavior Scale and Westmead PTA Scale) were also collected. Twenty-nine patients were monitored with PSG (mean: 41.6 days post-TBI; standard deviation [SD]: 28.3). Patients' mean sleep duration was reduced (5.6 h, SD: 1.2), and was fragmented with frequent awakenings (mean: 27.7, SD: 15.0). Deep, slow-wave restorative sleep was reduced, or completely absent (37.9% of patients). The use of PSG did not appear to exacerbate patient agitation or cognitive disturbance. Mean melatonin levels at both time-points were commonly outside of normal reference ranges. After PTA resolved, patients (n = 11) displayed significantly longer mean sleep time (5.3 h [PTA]; 6.5 h [out of PTA], difference between means: 1.2, p = 0.005). However, disturbances to other sleep-wake parameters (e.g., increased awakenings, wake time, and sleep latency) persisted after PTA resolved. This is the first study to evaluate sleep disturbance in a cohort of patients as they progressed through the early TBI recovery phases. There is a clear need for tailored assessment of sleep disturbance during PTA, which currently does not form part of routine hospital assessment, to suggest new treatment paradigms, enhance patient recovery, and reduce its long-term impacts.
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Affiliation(s)
- Bianca Fedele
- Department of Rehabilitation, Department of Rehabilitation and Mental Health, Epworth HealthCare, Melbourne, Australia
- Department of Rehabilitation, Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Australia
- School of Clinical Sciences, Monash University, Melbourne, Australia
| | - Gavin Williams
- Department of Rehabilitation, Department of Rehabilitation and Mental Health, Epworth HealthCare, Melbourne, Australia
- Department of Rehabilitation, Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Australia
- Department of Physiotherapy, The University of Melbourne, Melbourne, Australia
| | - Dean McKenzie
- Research Development and Governance Unit, Department of Rehabilitation and Mental Health, Epworth HealthCare, Melbourne, Australia
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia
| | - Robert Giles
- Sleep Unit, Department of Rehabilitation and Mental Health, Epworth HealthCare, Melbourne, Australia
| | - Adam McKay
- Department of Rehabilitation, Department of Rehabilitation and Mental Health, Epworth HealthCare, Melbourne, Australia
- School of Psychological Sciences, Monash University, Melbourne, Australia
- Monash Epworth Rehabilitation Research Centre, Melbourne, Australia
| | - John Olver
- Department of Rehabilitation, Department of Rehabilitation and Mental Health, Epworth HealthCare, Melbourne, Australia
- Department of Rehabilitation, Epworth Monash Rehabilitation Medicine (EMReM) Unit, Melbourne, Australia
- School of Clinical Sciences, Monash University, Melbourne, Australia
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19
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Barreira J, Brito J, Costa JA, Figueiredo P. Sleep duration is associated with overnight changes in perceived fatigue in elite women soccer players. SCI MED FOOTBALL 2024; 8:145-152. [PMID: 36587830 DOI: 10.1080/24733938.2022.2163511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/23/2022] [Indexed: 01/03/2023]
Abstract
The current study aimed to describe sleep habits and analyze the associations between sleep indices, changes in perceived fatigue (Δ Fatigue) and external training load measures in women soccer players during a 7-day training camp. Sixteen elite women soccer players (age: 25.4 ± 3.6 years; mean ± SD) from the Portuguese Women's National Team participated in the study. Sleep indices (sleep duration and efficiency) were measured using a wrist-worn accelerometer. External training loads measures were measured using GPS devices. Players also reported perceived fatigue using a Likert scale (1 - very, very low to 7 - very, very high) before and immediately after sleep. Players' within-subject coefficient of variation for sleep duration was 5.6%, and 4.6% for sleep efficiency. Individually, 8 players (50%) slept less than 7 h per night throughout the training camp, and the same number of athletes had a sleep efficiency lower than 85%. Similar values (p<0.05) were measured for sleep duration and efficiency between training and match days. A moderate negative within-subjects correlation was found between Δ Fatigue and sleep duration (adjusted for pre-sleep fatigue) [r = -0.32; 95% Confidence Interval (-0.51 - -0.08); p = 0.04]. These findings reinforce the importance of sleep in the recovery process of elite women soccer players, showing that more sleep may help to attenuate fatigue.
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Affiliation(s)
- João Barreira
- Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, University of Maia, ISMAI, Maia, Portugal
| | - João Brito
- Portugal Football School, Portuguese Football Federation, Oeiras, Portugal
| | - Júlio A Costa
- Portugal Football School, Portuguese Football Federation, Oeiras, Portugal
| | - Pedro Figueiredo
- Physical Education Department, College of Education, United Arab Emirates University, Al Ain, Abu Dhabi, United Arab Emirates
- Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, Vila Real, Portugal
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Tsai TC, Mitchell HR, Zeitzer J, Ting A, Laurenceau JP, Spiegel D, Kim Y. Dyadic Investigation of Posttraumatic Stress Symptoms and Daily Sleep Health in Patients With Cancer and Their Caregivers. Psychosom Med 2024; 86:234-243. [PMID: 38345316 PMCID: PMC11081839 DOI: 10.1097/psy.0000000000001283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
OBJECTIVE Cancer can be a traumatic experience affecting multidimensional aspects of sleep among patients and caregivers. This study examined the differential associations of cancer-related posttraumatic stress symptoms (PTSS) with various sleep markers in this population. METHODS Patients newly diagnosed with colorectal cancer ( n = 138, mean age = 56.93 years, 31.88% female, 60.14% Hispanic, 6.53 months after diagnosis) and their sleep-partner caregivers ( n = 138, mean age = 55.32 years, 68.12% female, 57.97% Hispanic) completed questionnaires assessing the four PTSS clusters (intrusion, avoidance, alterations in arousal and reactivity, negative alterations in cognitions and mood). Participants also completed daily sleep diaries for 14 consecutive days, from which sleep onset latency (SOL), wake after sleep onset (WASO), and sleep duration were derived. RESULTS Actor-partner interdependence model revealed that caregivers' greater alterations in arousal and reactivity were associated with their own longer SOL ( b = 15.59, p < .001) and their patients' longer sleep duration ( b = 0.61, p = .014), whereas patients' arousal and reactivity were associated with their caregivers' shorter SOL ( b = -8.47, p = .050). Patients' and caregivers' greater negative alterations in cognitions and mood were associated with patients' longer SOL ( b = 9.15, p = .014) and shorter sleep duration ( b = -0.41, p = .050), respectively. Caregivers' greater intrusion was related to their own shorter SOL ( b = -10.14, p = .004). CONCLUSIONS The four PTSS clusters, particularly arousal and reactivity and negative cognitions and mood, have distinct associations with sleep markers individually and dyadically in patients and caregivers affected by cancer. Investigations of psychosocial and biobehavioral pathways underlying these relations are warranted. Tailored trauma treatments and sleep interventions may improve the well-being of this population.
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Affiliation(s)
- Thomas C. Tsai
- Department of Psychology, University of Miami, 5665 Ponce de Leon Blvd., Coral Gables, FL, 33146, United States
| | | | - Jamie Zeitzer
- Department of Psychiatry and Behavioral Sciences, Stanford University
- Department of Psychiatry and Sleep Medicine, Palo Alto VA Medical Center
| | - Amanda Ting
- Department of Psychology, University of Miami, 5665 Ponce de Leon Blvd., Coral Gables, FL, 33146, United States
| | | | - David Spiegel
- Department of Psychiatry and Behavioral Sciences, Stanford University
| | - Youngmee Kim
- Department of Psychology, University of Miami, 5665 Ponce de Leon Blvd., Coral Gables, FL, 33146, United States
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Wang DS, Zhang HZ, Wu SH, Qian ZM, McMillin SE, Bingheim E, Tan WH, Huang WZ, Zhou PE, Liu RQ, Hu LW, Chen GB, Yang BY, Zeng XW, Hu QS, Lin LZ, Dong GH. Association Between Home Renovation and Sleeping Problems Among Children Aged 6-18 Years: A Nationwide Survey in China. Epidemiology 2024; 35:408-417. [PMID: 38261409 DOI: 10.1097/ede.0000000000001719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
BACKGROUND Although the indoor environment has been proposed to be associated with childhood sleep health, to our knowledge no study has investigated the association between home renovation and childhood sleep problems. METHODS The study included 186,470 children aged 6-18 years from the National Chinese Children Health Study (2012-2018). We measured childhood sleeping problems via the Chinese version of the Sleep Disturbance Scale for Children (C-SDSC). Information on home renovation exposure within the recent 2 years was collected via parent report. We estimated associations between home renovation and various sleeping problems, defined using both continuous and categorized (binary) C-SDSC t-scores, using generalized mixed models. We fitted models with city as a random effect variable, and other covariates as fixed effects. RESULTS Out of the overall participants, 89,732 (48%) were exposed to recent home renovations. Compared to the unexposed group, children exposed to home renovations had higher odds of total sleep disorder (odd ratios [OR] = 1.3; 95% confidence interval [CI] = 1.2, 1.4). Associations varied when we considered different types of home renovation materials. Children exposed to multiple types of home renovation had higher odds of sleeping problems. We observed similar findings when considering continuous C-SDSC t-scores. Additionally, sex and age of children modified the associations of home renovation exposure with some of the sleeping problem subtypes. CONCLUSIONS We found that home renovation was associated with higher odds of having sleeping problems and that they varied when considering the type of renovation, cumulative exposure, sex, and age differences.
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Affiliation(s)
- Dao-Sen Wang
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Hong-Zhi Zhang
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Si-Han Wu
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Zheng-Min Qian
- Department of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis University, Saint Louis, MO
| | | | - Elizabeth Bingheim
- Department of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis University, Saint Louis, MO
| | - Wei-Hong Tan
- Department of Reproductive Medicine and Genetics Center, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Wen-Zhong Huang
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Pei-En Zhou
- Department of Public Health & Primary Care, University of Cambridge, Cambridge CB2 1TN, UK
| | - Ru-Qing Liu
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Li-Wen Hu
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Gong-Bo Chen
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Bo-Yi Yang
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Wen Zeng
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Qian-Sheng Hu
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Li-Zi Lin
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Guang-Hui Dong
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
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22
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Uslu Y, Akbayrak H, Kuytak Ortahisar B, Barak TH. The effect of lavender foot baths on postoperative pain and sleep quality in comparison with foot baths with warm water only-A prospective randomized controlled study. Explore (NY) 2024; 20:385-391. [PMID: 37863680 DOI: 10.1016/j.explore.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/28/2023] [Accepted: 10/04/2023] [Indexed: 10/22/2023]
Abstract
INTRODUCTION The aim of the study was to investigate the effect of warm water (WW) foot bath with or without lavender oil for pain and sleep quality in the patients who undergone abdominal surgeries. MATERIALS AND METHOD This study was designed as a prospective randomized controlled. The three study groups were defined as the control group (n = 44), the WW foot bath group (n = 46), WW foot bath with the lavender group (n = 40). Foot baths were done for 20 min with 40 °C every night for 3 days after surgery. Visual Analogue Scale and Richard-Campbell Sleep Questionnaire were used during data collection. RESULTS A total of 130 patients, mean age 55.99 ± ± 13.05 years, 66 male (51 %), 103 of whom underwent abdominal surgery, were included in the study. When the patients during the postoperative three days were evaluated, decreased pain score and increased sleep quality both the WW and WW foot bath with lavender groups (p < 0.001). Noise-related sleep quality was detected to be lesser in the control group patients on the 3rd day (p < 0.001). CONCLUSION WW foot bath with or without lavender oil is an uncomplicated, economical, and effective complementary therapy to reduce postoperative pain and improve sleep quality. WW foot baths with essential oils are optionally available in clinics and can be used according to patients' preferences.
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Affiliation(s)
- Yasemin Uslu
- Istanbul University, Nursing Faculty, Surgical Nursing Department, Istanbul, Turkey
| | - Hacer Akbayrak
- Acıbadem Health Group Altunizade Hospital, İstanbul, Turkey
| | | | - Timur Hakan Barak
- Acıbadem Mehmet Ali Aydınlar University, Faculty of Pharmacy, Department of Pharmacognosy, Istanbul, Turkey.
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23
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Lee S, Smith CE, Wallace ML, Buxton OM, Almeida DM, Patel SR, Andel R. Ten-Year Stability of an Insomnia Sleeper Phenotype and Its Association With Chronic Conditions. Psychosom Med 2024; 86:289-297. [PMID: 38436651 PMCID: PMC11081817 DOI: 10.1097/psy.0000000000001288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
OBJECTIVE To identify distinct sleep health phenotypes in adults, examine transitions in sleep health phenotypes over time, and subsequently relate these to the risk of chronic conditions. METHODS A national sample of adults from the Midlife in the United States study ( N = 3683) provided longitudinal data with two time points (T1: 2004-2006, T2: 2013-2017). Participants self-reported on sleep health (regularity, satisfaction, alertness, efficiency, duration) and the number and type of chronic conditions. Covariates included age, sex, race, education, education, partnered status, number of children, work status, smoking, alcohol, and physical activity. RESULTS Latent transition analysis identified four sleep health phenotypes across both time points: good sleepers, insomnia sleepers, weekend catch-up sleepers, and nappers. Between T1 and T2, the majority (77%) maintained their phenotype, with the nappers and insomnia sleepers being the most stable. In fully adjusted models with good sleepers at both time points as the reference, being an insomnia sleeper at either time point was related to having an increased number of total chronic conditions by 28%-81% at T2, adjusting for T1 conditions. Insomnia sleepers at both time points were at 72%-188% higher risk for cardiovascular disease, diabetes, depression, and frailty. Being a napper at any time point related to increased risks for diabetes, cancer, and frailty. Being a weekend catch-up sleeper was not associated with chronic conditions. Those with lower education and unemployed were more likely to be insomnia sleepers; older adults and retirees were more likely to be nappers. CONCLUSION Findings indicate a heightened risk of chronic conditions involved in suboptimal sleep health phenotypes, mainly insomnia sleepers.
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Affiliation(s)
- Soomi Lee
- The Pennsylvania State University, Department of Human Development and Family Studies, State College, PA, U.S.A
| | - Claire E. Smith
- University of South Florida, Department of Psychology, Tampa, FL, U.S.A
| | | | - Orfeu M. Buxton
- The Pennsylvania State University, Department of Biobehavioral Health, State College, PA, U.S.A
| | - David M. Almeida
- The Pennsylvania State University, Department of Human Development and Family Studies, State College, PA, U.S.A
| | - Sanjay R. Patel
- University of Pittsburgh, Department of Medicine, Pittsburgh, PA, U.S.A
| | - Ross Andel
- Edson College of Nursing and Health Innovation, Arizona State University, Phoenix, AZ
- Department of Neurology, Second Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czech Republic
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Griffith CA, Leidy HJ, Gwin JA. Indices of Sleep Health Are Associated With Timing and Duration of Eating in Young Adults. J Acad Nutr Diet 2024:S2212-2672(24)00204-1. [PMID: 38697355 DOI: 10.1016/j.jand.2024.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 04/16/2024] [Accepted: 04/23/2024] [Indexed: 05/05/2024]
Abstract
BACKGROUND Limited data exist examining whether timing and/or duration of eating behaviors throughout the day affect sleep health. OBJECTIVE The aim of this study was to identify the relationship between eating behaviors and sleep in young adults without chronic diseases or conditions. DESIGN This was a cross-sectional study using 7 days of baseline data from a randomized crossover trial. PARTICIPANTS/SETTING Participants included 52 young adults. The study took place in West Lafayette, Indiana, between April 2017 and May 2018. MAIN OUTCOME MEASURES Timing and duration of eating were assessed via 3 nonconsecutive, 24-hour dietary recalls. Bedtime, wake time, total sleep time, sleep latency, sleep efficiency, and wake after sleep onset were measured over 7 days via wrist actigraphy and sleep diaries. STATISTICAL ANALYSES PERFORMED Two-way analyses of variance were applied to assess group differences based on timing of consumption (early vs late eating) and duration of eating (long: >13 hours, short: <11 hours, or standard: 11-13 hours) with post-hoc pairwise comparisons. RESULTS Main effects of timing of consumption, but not duration of eating, were detected for wake time, bedtime, and sleep efficiency (all, P < .05). Specifically, participants with later eating patterns that included breakfast skipping had later wake times and later bedtimes than those with earlier eating patterns. In addition, those who had later eating patterns that included breakfast skipping and nighttime eating experienced lower sleep efficiency (mean [SE], 77.0% [2.3%]) vs those who consumed breakfast and no nighttime eating (mean [SE], 84.6% [1.4%]; P < .001) and those who skipped breakfast but had no nighttime eating (mean [SE], 84.2% [2.5]; P < .05). Those who consumed breakfast but also had nighttime eating had a mean (SE) sleep efficiency of 82.4% (1.4%) (P = .09). CONCLUSIONS The timing of eating was associated with sleep-wake onset and sleep efficiency. This study provides the preliminary characterization of eating behaviors relative to sleep-wake cycles and highlights the need for experimental studies to understand whether manipulating the timing of eating occasions to better align with sleep-wake cycles could improve sleep health.
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Affiliation(s)
- Charlotte A Griffith
- Department of Nutritional Sciences, University of Texas at Austin, Austin, Texas; Department of Pediatrics, University of Texas at Austin, Austin, Texas
| | - Heather J Leidy
- Department of Nutritional Sciences, University of Texas at Austin, Austin, Texas; Department of Pediatrics, University of Texas at Austin, Austin, Texas
| | - Jess A Gwin
- Military Nutrition Division, US Army Research Institute of Environmental Medicine, Natick, Massachusetts.
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25
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Manifield J, Chaudhry Y, Singh SJ, Ward TJC, Whelan ME, Orme MW. Changes in physical activity, sedentary behaviour and sleep following pulmonary rehabilitation: a systematic review and network meta-analysis. Eur Respir Rev 2024; 33:230225. [PMID: 38599676 PMCID: PMC11004771 DOI: 10.1183/16000617.0225-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 02/06/2024] [Indexed: 04/12/2024] Open
Abstract
BACKGROUND The variety of innovations to traditional centre-based pulmonary rehabilitation (CBPR), including different modes of delivery and adjuncts, are likely to lead to differential responses in physical activity, sedentary behaviour and sleep. OBJECTIVES To examine the relative effectiveness of different pulmonary rehabilitation-based interventions on physical activity, sedentary behaviour and sleep. METHODS Randomised trials in chronic respiratory disease involving pulmonary rehabilitation-based interventions were systematically searched for. Network meta-analyses compared interventions for changes in physical activity, sedentary behaviour and sleep in COPD. RESULTS 46 studies were included, and analyses were performed on most common outcomes: steps per day (k=24), time spent in moderate-to-vigorous physical activity (MVPA; k=12) and sedentary time (k=8). There were insufficient data on sleep outcomes (k=3). CBPR resulted in greater steps per day and MVPA and reduced sedentary time compared to usual care. CBPR+physical activity promotion resulted in greater increases in steps per day compared to both usual care and CBPR, with greater increases in MVPA and reductions in sedentary time compared to usual care, but not CBPR. Home-based pulmonary rehabilitation resulted in greater increases in steps per day and decreases in sedentary time compared to usual care. Compared to usual care, CBPR+physical activity promotion was the only intervention where the lower 95% confidence interval for steps per day surpassed the minimal important difference. No pulmonary rehabilitation-related intervention resulted in greater increases in MVPA or reductions in sedentary time compared to CBPR. CONCLUSION The addition of physical activity promotion to pulmonary rehabilitation improves volume of physical activity, but not intensity, compared to CBPR. High risk of bias and low certainty of evidence suggests that these results should be viewed with caution.
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Affiliation(s)
- James Manifield
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Centre for Exercise and Rehabilitation Science, University Hospitals of Leicester NHS Trust, National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre (BRC) - Respiratory, Leicester, UK
| | - Yousuf Chaudhry
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
| | - Sally J Singh
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Centre for Exercise and Rehabilitation Science, University Hospitals of Leicester NHS Trust, National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre (BRC) - Respiratory, Leicester, UK
| | - Thomas J C Ward
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Centre for Exercise and Rehabilitation Science, University Hospitals of Leicester NHS Trust, National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre (BRC) - Respiratory, Leicester, UK
| | - Maxine E Whelan
- Centre for Healthcare and Communities, Coventry University, Coventry, UK
| | - Mark W Orme
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
- Centre for Exercise and Rehabilitation Science, University Hospitals of Leicester NHS Trust, National Institute for Health and Care Research (NIHR) Leicester Biomedical Research Centre (BRC) - Respiratory, Leicester, UK
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26
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Chichester S, Rahmoune A, Dashti HS. Home parenteral nutrition, sleep patterns, and depressive symptoms: Secondary analysis of cross-sectional data. JPEN J Parenter Enteral Nutr 2024. [PMID: 38644052 DOI: 10.1002/jpen.2631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 03/17/2024] [Accepted: 03/24/2024] [Indexed: 04/23/2024]
Abstract
BACKGROUND Patients receiving home parenteral nutrition (HPN) are known to experience psychological distress and have profoundly disrupted sleep. The aim of this analysis was to examine the relationship between sleep patterns with depressive symptoms and HPN characteristics. METHODS The study was a secondary analysis of cross-sectional data examining sleep patterns using subjective and objective measures. Sleep was assessed by surveys and 7-day actigraphy. The Patient Health Questionnaire-8 was used to evaluate depressive symptoms. Participants provided information on HPN. Spearman correlations were calculated between sleep measures with depressive symptoms and HPN characteristics. Correlations were further examined in multivariable linear regression models. RESULTS Thirty-two adults (age = 53 years; 75% female; 94% White) were included. Lower sleep quality (r = 0.54-0.60; P < 0.001) and later sleep timing (r = -0.35; P = 0.049) were correlated with higher depressive symptoms. Sleep patterns were also correlated with several HPN characteristics (r = -0.47 to 0.51). In linear regression models, rate of infusion was associated with sleep duration (β = -0.004 [0.002] h; P = 0.046) in which each 100 mL/h was associated with 24-min shorter duration. Higher total energy was associated with lower sleep quality (β = 0.0004 [0.0002] log-unit; P = 0.042), and higher volume was associated with longer sleep onset latency (β = 0.0006 [0.0003] log-min; P = 0.049). CONCLUSIONS We provide evidence supporting the link between poor and later sleep with higher depressive symptoms and identify potentially modifiable infusion characteristics (notably, slower rate of infusion and lower total energy and volume) that, on further verification, may support sleep among those receiving HPN.
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Affiliation(s)
- Sierra Chichester
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
- The Gerald J. and Dorothy R. Friedman School of Nutrition Science and Policy, Tufts University, Boston, Massachusetts, USA
| | - Adline Rahmoune
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Hassan S Dashti
- Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
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Gyasi RM, Aikins E, Dumedah G, Gyasi-Boadu N, Frimpong PB, Boampong MS, Buor D, Mariwah S, Naab F, Phillips DR. Risk of Sleep Problems in Middle-Aged and Older Adults Experiencing Bodily Pains: Serial Multiple Mediation Estimates of Emotional Distress and Activity Limitations. Am J Geriatr Psychiatry 2024:S1064-7481(24)00318-X. [PMID: 38702252 DOI: 10.1016/j.jagp.2024.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/10/2024] [Accepted: 04/11/2024] [Indexed: 05/06/2024]
Abstract
OBJECTIVES Pain is increasingly becoming common among middle-aged and older adults. While research on the association between pain characteristics and sleep problems (SP) is limited in low- and middle-income countries, the underlying mechanisms of the association are poorly understood. This study examines the association of bodily pain intensity and pain interference with SP and investigates the mediating role of activity limitation and emotional distress in this association. METHODS We analyzed population-based data, including 1,201 individuals aged ≥50 (mean [SD] age 66.14 [11.85] years) from the 2016-2018 AgeHeaPsyWel-HeaSeeB study in Ghana. Multiple OLS regressions and serial multiple mediation modeling using bootstrapping analyses examined direct and indirect effects from pain to SP through activity limitation and emotional distress. RESULTS Regressions demonstrated that pain intensity and interference were significantly associated with higher levels of activity limitation, emotional distress, and SP (range: β = 0.049-0.658). Bootstrapping analysis showed that activity limitation and emotional distress serially mediated the relationship between pain intensity and SP (total effect: β = 0.264, Bootstrap 95% confidence interval [CI] = 0.165-0.362; direct effect: (β = 0.107, Bootstrap 95% CI = 0.005-0.210; total indirect effect: β = 0.156, Bootstrap 95% CI = 0.005-0.210) accounting for ∼59%. Activity limitation and emotional distress mediated pain interference and SP association (total effect: β = 0.404, Bootstrap 95% CI = 0.318-0.490; direct effect: β = 0.292, Bootstrap 95% CI = 0.201-0.384; and total indirect effect: β = 0.112, Bootstrap 95% CI = 0.069-0.156) yielding ∼28%. CONCLUSION Our data suggest that activity limitation and emotional distress may convey stress-related risks of pain on SP. Future research should evaluate if activity limitation and emotional distress could be effective targets to reduce the effect of pain on sleep in later-life.
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Affiliation(s)
- Razak M Gyasi
- African Population and Health Research Center, Nairobi, Kenya; National Centre for Naturopathic Medicine (NCNM), Southern Cross University, Lismore, Australia.
| | - Emelia Aikins
- Department of Geography and Rural Development, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Gift Dumedah
- Department of Geography and Rural Development, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Nelson Gyasi-Boadu
- Department of Sociology and Social Work, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Prince Boakye Frimpong
- Department of Economics, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Mary Sefa Boampong
- Department of Sociology and Social Work, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Daniel Buor
- Department of Geography and Rural Development, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Simon Mariwah
- Department of Geography and Regional Planning, University of Cape Coast, Cape Coast, Ghana
| | - Francis Naab
- Perivoli Africa Research Centre (PARC), University of Bristol, Bristol, United Kingdom
| | - David R Phillips
- Department of Sociology and Social Policy, Lingnan University, Hong Kong, Hong Kong
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28
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Xu A, Li X. Sleep Patterns During Pre-Competition Training Phase: A Comparison Between Male and Female Collegiate Swimmers. Nat Sci Sleep 2024; 16:369-379. [PMID: 38638411 PMCID: PMC11023941 DOI: 10.2147/nss.s444472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 04/04/2024] [Indexed: 04/20/2024] Open
Abstract
Purpose While there is a rising focus on sleep issues among athletes, a notable gap exists in the comparative analysis of sleep patterns between male and female athletes. This study aims to evaluate the sleep patterns of collegiate swimmers during a specific period (pre-competition training phase) based on the National Sleep Foundation's recommendations and compares sleep differences between males and females. Patients and Methods 15 swimmers (6 males and 9 females) completed the Athlete Sleep Screening Questionnaire (ASSQ) and wore actigraphy devices for 8 consecutive nights to record objective sleep patterns including bedtime, wake time, sleep onset latency, total sleep time, wake after sleep onset, and sleep efficiency. Results The total sleep time of collegiate male (5.0±0.4 h, 4.6 to 5.4h) and female (6.0±0.7 h, 5.5 to 6.5h) swimmers was less than 7 hours per night, and male swimmers' sleep efficiency (76.7±8.9%, 67.4 to 86.0%) was lower than the 85% standard. Male swimmers had less objectively measured sleep duration (p=0.006, d=1.66, large effect), lower sleep efficiency (p=0.013, d=1.51, large effect), and longer wake after sleep onset (p=0.096, d=0.94, moderate effect). Female swimmers had higher sleep difficulty scores (p=0.06, d=1.08, moderate effect), and there was a significant difference in the distribution of sleep difficulty scores between male and female swimmers (p=0.033, V=0.045, small effect). Conclusion Collegiate swimmers exhibited poor sleep patterns during pre-competition preparation, and the sleep fragmentation of male swimmers was more pronounced. There were sex differences in both subjective and objective measured sleep patterns, with male swimmers having less sleep and low efficiency, while female swimmers experienced more significant sleep disturbances.
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Affiliation(s)
- Anran Xu
- Department of Physical Education and Research, Central South University, Changsha, 410083, People’s Republic of China
| | - Xiaotian Li
- Department of Physical Education and Research, Central South University, Changsha, 410083, People’s Republic of China
- School of Sports Training, Wuhan Institute of Physical Education, Wuhan, 430079, People’s Republic of China
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Bacil EDA, da Silva MP, Martins RV, da Costa CG, de Campos W. Exposure to Smartphones and Tablets, Physical Activity and Sleep in Children From 5 to 10 Years Old: A Systematic Review and Meta-Analysis. Am J Health Promot 2024:8901171241242556. [PMID: 38587808 DOI: 10.1177/08901171241242556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
OBJECTIVE To conduct a systematic review and meta-analysis to verify the association between smartphone/tablet exposure and physical activity and sleep in children from 5 to 10 years old. Data Source: This study followed the guidelines of PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) and included studies that met eligibility criteria based on the "PECO" strategy: participants (children from 5 to 10 years old), exposure (smartphone and tablet use), and outcome (physical activity and sleep). STUDY INCLUSION AND EXCLUSION CRITERIA The inclusion criteria were observational studies published in indexed scientific journals and written in Portuguese, English, and Spanish that verified the association of exposure to smartphones/tablets with physical activity and sleep in children aged 5 to 10 years of both sexes. Studies were considered eligible only if they met the previous criteria. Data Extraction: The search was conducted in January 2023 on databases from electronic journals without the restriction of the period. To meta-analyze were extracted and grouped using models of fixed and random effects, the coefficients Odds Ratio (OR), Beta (β), Standard Error (SE), and Confidence Intervals of 95% (95%CI). Data Synthesis: 2396 potentially relevant papers were identified, and 17 met the inclusion criteria. RESULTS It can be verified that there was an inverse association between smartphones with physical activity and sleep. Studies indicate that for every additional hour of smartphone and tablet use, sleep can be expected to decrease by an average of 11 minutes (β = - 0.11; 95%CI = -0.13; -0.09). Children using smartphones and tablets were 1.79 times (OR = 1.79; 95%CI = 1.72-1.86) more likely to have shorter sleep duration and 1.53 times (OR = 1.53; 95%CI = 1.41-1.65) more likely to have worse sleep quality. Children with shorter smartphone and tablet usage were 1.19 times more likely to be active (OR = 1.19; 95% CI = 1.03-1.37). CONCLUSION Children of 5 to 10 years who are more often exposed to smartphones and tablets are prone to have worse quality and quantity of sleep, as well as less practice of physical activity. Health promotion actions can be encouraged based on the results, aiming to reduce the use time of these devices and improve children's health and quality of life.
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Affiliation(s)
| | | | | | | | - Wagner de Campos
- Department of Physical Education, Federal University of Paraná, Brazil
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Merín L, Toledano-González A, Fernández-Aguilar L, Nieto M, Del Olmo N, Latorre JM. Evaluation of the association between excessive screen use, sleep patterns and behavioral and cognitive aspects in preschool population. A systematic review. Eur Child Adolesc Psychiatry 2024:10.1007/s00787-024-02430-w. [PMID: 38565731 DOI: 10.1007/s00787-024-02430-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 03/25/2024] [Indexed: 04/04/2024]
Abstract
In this review, we analyzed the possible relationship between the excessive use of screens and sleep patterns, and how this may affect certain behavioral and cognitive factors in preschool children. The selection, extraction and synthesis of the data were conducted according to PRISMA guidelines. The search was carried out in the electronic databases Medline (PubMed), PsycINFO (American Psychological Association), Scopus and Web of Science (WOS). Of the 597 articles initially identified, 13 met the inclusion criteria. The risk of bias of the articles selected was evaluated using a specific scale created for this purpose. The results found indicate that excessive use of screens is associated with a negative impact on the duration and quality of sleep-in preschoolers, and this worsening of sleep in infancy is related with a greater probability of the appearance of internalizing and externalizing behavioral problems and certain cognitive problems. The results also suggest that sleep could play a mediating or moderating role as a bioregulatory system that attenuates or increases the onset of behavioral and cognitive difficulties in those children most exposed to digital devices.
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Affiliation(s)
- Llanos Merín
- Department of Psychology, Faculty of Education, University of Castilla-La Mancha, Albacete, Spain
| | - Abel Toledano-González
- Department of Psychology, Faculty of Health Sciences, University of Castilla-La Mancha, Talavera de la Reina, Spain
- Biomedicine Institute, University of Castilla La Mancha, Albacete, Spain
| | - Luz Fernández-Aguilar
- Biomedicine Institute, University of Castilla La Mancha, Albacete, Spain.
- Department of Psychology, Faculty of Law, University of Castilla-La Mancha, Albacete, Spain.
| | - Marta Nieto
- Biomedicine Institute, University of Castilla La Mancha, Albacete, Spain
- Department of Psychology, Faculty of Medicine, University of Castilla-La Mancha, Albacete, Spain
| | - Nuria Del Olmo
- Department of Psychobiology, Faculty of Psychology, National University of Distance Education, Madrid, Spain
| | - José M Latorre
- Biomedicine Institute, University of Castilla La Mancha, Albacete, Spain
- Department of Psychology, Faculty of Medicine, University of Castilla-La Mancha, Albacete, Spain
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Helles M, Fletcher R, Münch M, Gibson R. Examining the structure validity of the Pittsburgh Sleep Quality Index among female workers during New Zealand's initial COVID-19 lockdown. Sleep Biol Rhythms 2024; 22:217-225. [PMID: 38524163 PMCID: PMC10959842 DOI: 10.1007/s41105-023-00509-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 12/10/2023] [Indexed: 03/26/2024]
Abstract
Sleep is important for good physical and mental health. The COVID-19 pandemic lockdown created a unique context that impacted psychological and social drivers for sleeping well. The Pittsburgh Sleep Quality Index (PSQI) is a widely used measurement tool assessing subjective sleep quality. The traditional model of the PSQI (a one-factor model), whilst validated and used across different populations, has also been questioned with regards to data fit and representativeness of its global score in different social and work-related circumstances. Examination of the structure validity of the PSQI in the unique context of the pandemic has been scarce. This study determined the PSQI structure validity amongst employed women considered to experience increased stressors during the pandemic lockdown. The subjectively reported PSQI data from 498 female workers (mean age 44.6 years) collected during New Zealand's first national COVID-19 lockdown (April, 2020) was used. Confirmatory factor analyses compared the original one-factor model of the PSQI with the two- and three-factor models used by Jia et al. (2019) within this pandemic context. Results showed that the two-factor model provided a superior fit of the PSQI data compared to the original one-factor or a three-factor model. These findings suggest that a sub-score of the PSQI with two factors appears to be better at describing the sleep quality of healthy working women during the constrained situation of the pandemic lockdown compared to a single global sleep quality score. This indicates the importance of considering the validity of subjective sleep measures when used within unique social contexts and stressors.
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Affiliation(s)
- Margrethe Helles
- School of Psychology, Massey University, Palmerston North, New Zealand
| | - Richard Fletcher
- School of Psychology, Massey University, Palmerston North, New Zealand
| | - Mirjam Münch
- Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, Switzerland
- Research Cluster Molecular and Cognitive Neurosciences, Department of Biomedicine, Basel, Switzerland
- Sleep/Wake Research Centre, School of Health, Massey University, Wellington, New Zealand
- Research Centre for Hauora and Health, College of Health, Massey University, Wellington, New Zealand
| | - Rosemary Gibson
- School of Psychology, Massey University, Palmerston North, New Zealand
- Sleep/Wake Research Centre, School of Health, Massey University, Wellington, New Zealand
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Sanders N, Randell RK, Thomas C, Bailey SJ, Clifford T. Sleep architecture of elite soccer players surrounding match days as measured by WHOOP straps. Chronobiol Int 2024; 41:539-547. [PMID: 38438323 DOI: 10.1080/07420528.2024.2325022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 02/23/2024] [Indexed: 03/06/2024]
Abstract
This study aimed to quantify and compare sleep architecture before and after home and away matches in elite soccer players from the English Premier League. Across two seasons, 6 male players (age 28 ± 5 y; body mass 85.1 ± 9.5 kg; height 1.86 ± 0.09 m) wore WHOOP straps to monitor sleep across 13 matches that kicked off before 17:00 h. For each, sleep was recorded the night before (MD-1), after (MD) and following the match (MD +1). Across these 3 days total sleep time (TST), sleep efficiency (SE), sleep disturbances, wake time, light sleep, deep sleep, REM sleep, sleep and wake onsets, alongside external load, were compared. TST was reduced after MD versus MD +1 (392.9 ± 76.4 vs 459.1 ± 66.7 min, p = 0.003) but no differences existed in any other sleep variables between days (p > 0.05). TST did not differ after home (386.9 ± 75.7 min) vs. away matches (401.0 ± 78.3 min) (p = 0.475), nor did other sleep variables (p > 0.05). GPS-derived external load peaked on MD (p < 0.05). In conclusion, despite reduced TST on MD, sleep architecture was unaffected after matches played before 17:00 h, suggesting sleep quality was not significantly compromised.
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Affiliation(s)
- Nicole Sanders
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Rebecca K Randell
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
- Gatorade Sports Science Institute, Life Sciences R&D, PepsiCo, Leicester, UK
| | - Craig Thomas
- The Northumbria Centre for Sleep Research, Northumbria University, Newcastle, UK
| | - Stephen J Bailey
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Tom Clifford
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
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Galland BC, Haszard JJ, Jackson R, Morrison S, Meredith-Jones K, Elder DE, Beebe D, Taylor RW. Predictors for achieving optimal sleep in healthy children: Exploring sleep patterns in a sleep extension trial. Sleep Health 2024; 10:213-220. [PMID: 37980245 DOI: 10.1016/j.sleh.2023.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 07/19/2023] [Accepted: 09/24/2023] [Indexed: 11/20/2023]
Abstract
STUDY OBJECTIVES Earlier bedtimes can help some children get more sleep, but we don't know which children, or what features of their usual sleep patterns could predict success with this approach. Using data from a randomized crossover trial of sleep manipulation, we sought to determine this. METHODS Participants were 99 children aged 8-12years (49.5% female) with no sleep disturbances. Sleep was measured by actigraphy at baseline and over a restriction or extension week (1 hour later or earlier bedtime respectively), randomly allocated and separated by a washout week. Data were compared between baseline (week 1) and extension weeks only (week 3 or 5), using linear or logistic regression analyses as appropriate, controlling for randomization order. RESULTS One hour less total sleep time than average at baseline predicted 29.7 minutes (95% CI: 19.4, 40.1) of sleep gained and 3.45 (95% CI: 1.74, 6.81) times higher odds of successfully extending sleep by >30 minutes. Per standardized variable, less total sleep time and a shorter sleep period time were the strongest predictors (significant odds ratios (ORs) of 2.51 and 2.28, respectively). Later sleep offset, more variability in sleep timing and lower sleep efficiency also predicted sleep gains. The sleep period time cut-point that optimized prediction of successful sleep gains was <8 hours 28 minutes with 75% of children's baseline sleep in that range. CONCLUSIONS Children with a baseline sleep period time <8½ hours a night obtained the most sleep from earlier bedtimes maintained over a week, demonstrating experimentally the value of earlier bedtimes to improve sleep. CLINICAL TRIALS REGISTRY Australian New Zealand Clinical Trial Registry, ACTRN12618001671257, https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=367587&isReview=true.
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Affiliation(s)
- Barbara C Galland
- Department of Women's & Children's Health, University of Otago, Dunedin, New Zealand.
| | | | - Rosie Jackson
- Department of Medicine, University of Otago, Dunedin, New Zealand
| | - Silke Morrison
- Department of Medicine, University of Otago, Dunedin, New Zealand
| | | | - Dawn E Elder
- Department of Paediatrics and Child Health, University of Otago, Wellington, New Zealand
| | - Dean Beebe
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Rachael W Taylor
- Department of Medicine, University of Otago, Dunedin, New Zealand
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Salmio A, Rissanen APE, Kurkela JLO, Rottensteiner M, Seipäjärvi S, Juurakko J, Kujala UM, Laukkanen JA, Wikgren J. Cardiorespiratory fitness is linked with heart rate variability during stress in "at-risk" adults. J Sports Med Phys Fitness 2024; 64:334-347. [PMID: 38213267 DOI: 10.23736/s0022-4707.23.15373-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
BACKGROUND Physiological mechanisms explaining why cardiorespiratory fitness (CRF) predicts cardiovascular morbidity and mortality are incompletely understood. We examined if CRF modifies vagally mediated heart rate variability (HRV) during acute physical or psychosocial stress or night-time sleep in adults with cardiovascular risk factors. METHODS Seventy-eight adults (age 56 years [IQR 50-60], 74% female, body mass index 28 kg/m2 [IQR 25-31]) with frequent cardiovascular risk factors participated in this cross-sectional study. They went through physical (treadmill cardiopulmonary exercise test [CPET]) and psychosocial (Trier Social Stress Test for Groups [TSST-G]) stress tests and night-time sleep monitoring (polysomnography). Heart rate (HR) and vagally mediated HRV (root mean square of successive differences between normal R-R intervals [RMSSD]) were recorded during the experiments and analyzed by taking account of potential confounders. RESULTS CRF (peak O2 uptake) averaged 99% (range 78-126) in relation to reference data. From pre-rest to moderate intensities during CPET and throughout TSST-G, HR did not differ between participants with CRF below median (CRFlower) and CRF equal to or above median (CRFhigher), whereas CRFhigher had higher HRV than CRFlower, and CRF correlated positively with HRV in all participants. Meanwhile, CRF had no independent associations with HR or HRV levels during slow-wave sleep, the presence of metabolic syndrome was not associated with recorded HR or HRV levels, and single factors predicted HRV responsiveness independently only to limited extents. CONCLUSIONS CRF is positively associated with prevailing vagally mediated HRV at everyday levels of physical and psychosocial stress in adults with cardiovascular risk factors.
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Affiliation(s)
- Anniina Salmio
- Center for Interdisciplinary Brain Research, Department of Psychology, University of Jyväskylä, Jyväskylä, Finland
| | - Antti-Pekka E Rissanen
- Central Finland Health Care District, Jyväskylä, Finland -
- Sports and Exercise Medicine, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- HULA - Helsinki Sports and Exercise Medicine Clinic, Foundation for Sports and Exercise Medicine, Helsinki, Finland
| | - Jari L O Kurkela
- Center for Interdisciplinary Brain Research, Department of Psychology, University of Jyväskylä, Jyväskylä, Finland
| | - Mirva Rottensteiner
- Central Finland Health Care District, Jyväskylä, Finland
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Santtu Seipäjärvi
- Center for Interdisciplinary Brain Research, Department of Psychology, University of Jyväskylä, Jyväskylä, Finland
| | - Joona Juurakko
- Center for Interdisciplinary Brain Research, Department of Psychology, University of Jyväskylä, Jyväskylä, Finland
| | - Urho M Kujala
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Jari A Laukkanen
- Central Finland Health Care District, Jyväskylä, Finland
- Institute of Clinical Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
| | - Jan Wikgren
- Center for Interdisciplinary Brain Research, Department of Psychology, University of Jyväskylä, Jyväskylä, Finland
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Tseng YJ, Leicht AS, Pagaduan JC, Chien LC, Wang YL, Kao CS, Lu WS, Chen YS. Effects of shift work on sleep quality and cardiovascular function in Taiwanese police officers. Chronobiol Int 2024; 41:530-538. [PMID: 38421010 DOI: 10.1080/07420528.2024.2324023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 02/18/2024] [Indexed: 03/02/2024]
Abstract
This study aimed to investigate the effects of shift work on sleep quality, cardiovascular function, and physical activity (PA) levels in Taiwanese police officers. Twenty-one male police officers aged 26.9 ± 4.1 years old located in Taipei voluntarily participated in this study. The participants completed the resting heart rate (HR) and hemodynamic variables (e.g. blood pressure, BP) before and after day-time (DTW) and night-time (NTW) shift work phases (5 working days and 2 resting days for each phase). Additionally, an actigraphy was administered to measure PA and sleep patterns in the last 3 working days. The average total sleep time and sleep efficiency were 278.5 ± 79. 6 min and 72.9 ± 10%, respectively, in the NTW phases, which were significantly lower than that in the DTW phases. A comparison of the PA characteristics between the two phases revealed that a lower proportion of moderate-vigorous PA (1.2 ± 0.8%) and a greater proportion of sedentary behaviour PA (74.8 ± 6.4%) was found in the NTW phases. The results of hemodynamic measures demonstrated that the police officers have significantly elevated systolic BP by 3.3% and diastolic BP by 3.9% after the NTW phases. Furthermore, the NTW phases exhibited a significantly higher percentage change ratio of systolic BP and diastolic BP compared to the DTW phases. Compared with the DTW phases, the NTW phase was significantly more likely to report higher decreasing parasympathetic-related HR variability with a range of -5.9% to -7.8%. In conclusion, night-time shift work resulted in negative physiological changes leading to adverse effects on the health and well-being of Taiwanese police officers.
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Affiliation(s)
- Yen-Ju Tseng
- Department of Exercise and Health Sciences, University of Taipei, Taipei, Taiwan
- Special Police First Headquarters, National Police Agency, Taipei, Taiwan
| | - Anthony S Leicht
- Sport and Exercise Science, James Cook University, Townsville, Australia
- Australian Institute of Tropical Health & Medicine, James Cook University, Townsville, Australia
| | - Jeffrey Cayaban Pagaduan
- Faculty of Physical Culture, Institute of Active Lifestyle, Palacký University, Olomouc, Czechia
| | - Ling-Chu Chien
- School of Public Health, Taipei Medical University, Taipei, Taiwan
- Neuroscience Research Center, Taipei Medical University, Taipei, Taiwan
- Nutrition Research Center, Taipei Medical University Hospital, Taipei, Taiwan
| | - Ying-Lin Wang
- School of Public Health, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan
| | - Chi-Sian Kao
- School of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Wei-Szu Lu
- Department of Administrative Management, Central Police University, Taoyuan, Taiwan
| | - Yung-Sheng Chen
- Department of Exercise and Health Sciences, University of Taipei, Taipei, Taiwan
- Exercise and Health Promotion Association, New Taipei City, Taiwan
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Kado DM. Night-to-night sleep duration variability and gut microbial diversity: more evidence for a brain-gut microbiome-sleep connection. Sleep 2024; 47:zsae005. [PMID: 38183293 DOI: 10.1093/sleep/zsae005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Indexed: 01/08/2024] Open
Affiliation(s)
- Deborah M Kado
- Department of Medicine, Stanford University, Palo Alto, CA, USA
- Geriatric Research Education and Clinical Center (GRECC), Palo Alto Veterans Healthcare Administration, Palo Alto, CA, USA
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Merianos AL, Stone TM, Mahabee-Gittens EM, Jandarov RA, Choi K. Tobacco Smoke Exposure and Sleep Duration among U.S. Adolescents. Behav Sleep Med 2024; 22:234-246. [PMID: 37417788 PMCID: PMC10772738 DOI: 10.1080/15402002.2023.2232498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
OBJECTIVES Tobacco smoke exposure (TSE) and poor sleep are public health problems with their own set of consequences. This study assessed whether TSE was associated with sleep duration among U.S. adolescents. METHOD We conducted a secondary analysis of 2013-2018 National Health and Nutrition Examination Survey data including 914 nontobacco-using adolescents ages 16-19 years. TSE measures included cotinine and self-reported home TSE groups including no home TSE, thirdhand smoke (THS) exposure, and secondhand smoke (SHS)+THS exposure. Sleep duration was assessed in hours and categorically as insufficient sleep (recommended hours). Weighted multiple linear regression and multinomial regression models were conducted. RESULTS Adolescents with higher log-cotinine levels had higher number of sleep hours (β = 0.31, 95%CI = 0.02,0.60) and were at increased odds of reporting excess sleep (AOR = 1.41, 95%CI = 1.40,1.42), but were at reduced odds of reporting insufficient sleep (AOR = 0.88, 95%CI = 0.87,0.89). Compared to adolescents with no home TSE, adolescents with home THS exposure and home SHS+THS exposure were at increased odds of reporting insufficient sleep (AOR = 2.27, 95%CI = 2.26,2.29; AOR = 2.75, 95%CI = 2.72,2.77, respectively) and excess sleep (AOR = 1.89, 95%CI = 1.87,1.90; AOR = 5.29, 95%CI = 5.23,5.34, respectively). CONCLUSIONS TSE may affect insufficient and excess sleep duration among adolescents. Eliminating TSE may promote adolescent respiratory and sleep health.
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Affiliation(s)
| | - Timothy M. Stone
- Division of Biostatistics and Bioinformatics, Department of
Environmental and Public Health Sciences, College of Medicine, University of
Cincinnati, 160 Panzeca Way, Cincinnati, OH, 45267, USA
| | - E. Melinda Mahabee-Gittens
- Division of Emergency Medicine, Cincinnati
Children’s Hospital Medical Center, College of Medicine, University of
Cincinnati, 3333 Burnet Avenue, MLC 2008, Cincinnati, OH, 45229, USA
| | - Roman A. Jandarov
- Division of Biostatistics and Bioinformatics, Department of
Environmental and Public Health Sciences, College of Medicine, University of
Cincinnati, 160 Panzeca Way, Cincinnati, OH, 45267, USA
| | - Kelvin Choi
- Division of Intramural Research, National Institute on
Minority Health and Health Disparities, Bethesda, Maryland, USA
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Malheiros LE, da Costa BG, Lopes MV, Martins da Costa R, Chaput JP, Silva KS. Association of sleep timing and sleep variability with health-related outcomes in a sample of Brazilian adolescents. Behav Sleep Med 2024; 22:129-139. [PMID: 37154038 DOI: 10.1080/15402002.2023.2207699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
OBJECTIVES This cross-sectional study aimed to examine the relationships of sleep timing and sleep variability with depressive symptoms, health-related quality of life (HRQoL), daytime sleepiness, and body mass index (BMI) in adolescents. METHODS Adolescents from three schools (n = 571, 56% female, 16.3 ± 1.0 years) had their sleep examined by actigraphy, their anthropometrics assessed, and answered a survey. Sleep timing was examined by combining groups of median-dichotomized onset and wakeup times (early onset and early wakeup; early onset and late wakeup; later onset and early wakeup; later onset and later wakeup); sleep variability was based on within-participant standard deviations of onset and wakeup; and sleep duration as the length of time between onset and wakeup. The sleep variables were separated for weekdays and weekend. Mixed linear models were fitted to compare each sleep variable with health-related outcomes. RESULTS Higher values of daytime sleepiness were observed in adolescents from the late-early and late-late timing group during the week. Greater sleep midpoint and wakeup variability on weekdays were related with higher daytime sleepiness. Adolescents in the late-late and early-late groups showed higher daytime sleepiness. Increased of all sleep variability variables was related with greater daytime sleepiness. Higher depressive symptoms scores were found among adolescents in the late-early subgroup and with the increase of sleep variability. Participants with greater sleep onset variability and sleep midpoint variability reported less HRQoL. CONCLUSIONS Not only sleep duration, but sleep timing and variability also relate to health outcomes, and should be addressed by policies and interventions among adolescents.
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Affiliation(s)
- Luís Ea Malheiros
- Núcleo de Pesquisa em Atividade Física e Saúde, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Bruno Gg da Costa
- Núcleo de Pesquisa em Atividade Física e Saúde, Universidade Federal de Santa Catarina, Florianópolis, Brazil
- School of Physical and Health Education, Nipissing University, North Bay, Canada
| | - Marcus Vv Lopes
- Núcleo de Pesquisa em Atividade Física e Saúde, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Rafael Martins da Costa
- Núcleo de Pesquisa em Atividade Física e Saúde, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Jean-Philippe Chaput
- Healthy Active Living and Obesity Research Group, Children's Hospital of Eastern Ontario Research Institute, Ottawa, Ontario, Canada
| | - Kelly S Silva
- Núcleo de Pesquisa em Atividade Física e Saúde, Universidade Federal de Santa Catarina, Florianópolis, Brazil
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Mohapatra SS, Sinha B, Tripathy NK, Ghosh D. Objective assessment of fatigue among aviation personnel using a bio-mathematical model: An experimental study. Med J Armed Forces India 2024; 80:217-223. [PMID: 38525454 PMCID: PMC10954509 DOI: 10.1016/j.mjafi.2022.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 06/02/2022] [Indexed: 10/16/2022] Open
Abstract
Background There are many subjective and objective tools to detect, assess, and quantify fatigue. This study is a novice attempt to assess the occupational fatigue among the aviation personnel employing a computerized work-rest schedule tool integrated with actigraphy. Methods Thirty-eight aviation personnel were assessed for their sleep by using an actigraphy device. A work-rest scheduling software program called Fatigue Avoidance Scheduling Tool (FAST) was used to obtain fatigue parameters like Fatigue Risk Time (FRT), Fatigue Free Time (FFT), and Fatigue Free Occupational Time (FFOT). Results The percentages of crew having a night sleep of the duration of more than 6 hours were 50% (Mon), 44.7% (Tue), 44.7% (Wed), and 47.3% (Thu) for weekdays and 65.8% (Fri), 57.9% (Sat), and 57.9% (Sun) for the weekend. There was a gradual increase in FRT, FFT, and FFOT from Day 1 to Day 5 of the week, and the differences were statistically significant. Conclusion Increase in the FRT with a reciprocal drop of FFT and FFOT was observed with the progress of the week. Total Sleep Time (TST) of less than 8 hours could be the reason for a gradual increase in sleep debt, leading to fatigue depicted as increase in fatigue risk parameter FRT and gradual decrease in fatigue preventing parameters like FFT and FFOT. It was further confirmed by regression analysis in which TST was found to be a statistically significant predictor for all fatigue parameters. Regression equation for FFOT as 498.53 + (0.39 x TST) - (58.8 x Day of the week) can be used.
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Affiliation(s)
| | - Biswajit Sinha
- Scientist “F” & Head (Space & Environment Physiology), Institute of Aerospace Medicine (IAF), Bengaluru, India
| | - Niraj Kumar Tripathy
- Chief Research Officer, Research Department, Institute of Aerospace Medicine (IAF), Bengaluru India
| | - Devdeep Ghosh
- SMO, 47 Wing, Medical Department, Air Force Station, Thanjavur SMC, Thanjavur, Tamilnadu, India
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Guerrera CS, Boccaccio FM, Varrasi S, Platania GA, Coco M, Pirrone C, Castellano S, Caraci F, Ferri R, Lanza G. A narrative review on insomnia and hypersomnolence within Major Depressive Disorder and bipolar disorder: A proposal for a novel psychometric protocol. Neurosci Biobehav Rev 2024; 158:105575. [PMID: 38331126 DOI: 10.1016/j.neubiorev.2024.105575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 01/27/2024] [Accepted: 02/03/2024] [Indexed: 02/10/2024]
Abstract
Sleep disorders have become increasingly prevalent, with many adults worldwide reporting sleep dissatisfaction. Major Depressive Disorder (MDD) and Bipolar Disorder (BD) are common conditions associated with disrupted sleep patterns such as insomnia and hypersomnolence. These sleep disorders significantly affect the progression, severity, treatment, and outcome of unipolar and bipolar depression. While there is evidence of a connection between sleep disorders and depression, it remains unclear if sleep features differ between MDD and BD. In light of this, this narrative review aims to: (1) summarize findings on common sleep disorders like insomnia and hypersomnolence, strongly linked to MDD and BD; (2) propose a novel psychometric approach to assess sleep in individuals with depressive disorders. Despite insomnia seems to be more influent in unipolar depression, while hypersomnolence in bipolar one, there is no common agreement. So, it is essential adopting a comprehensive psychometric protocol for try to fill this gap. Understanding the relationship between sleep and MDD and BD disorders are crucial for effective management and better quality of life for those affected.
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Affiliation(s)
- Claudia Savia Guerrera
- Department of Educational Sciences, University of Catania, Via Biblioteca, 4, 95124 Catania, Italy; Department of Biomedical and Biotechnological Sciences, University of Catania, Torre Biologica, Via Santa Sofia, 97, 95123 Catania, Italy.
| | | | - Simone Varrasi
- Department of Educational Sciences, University of Catania, Via Biblioteca, 4, 95124 Catania, Italy
| | | | - Marinella Coco
- Department of Educational Sciences, University of Catania, Via Biblioteca, 4, 95124 Catania, Italy
| | - Concetta Pirrone
- Department of Educational Sciences, University of Catania, Via Biblioteca, 4, 95124 Catania, Italy
| | - Sabrina Castellano
- Department of Educational Sciences, University of Catania, Via Biblioteca, 4, 95124 Catania, Italy
| | - Filippo Caraci
- Department of Drug and Health Sciences, University of Catania, Cittadella Universitaria, Via Santa Sofia, 95123 Catania, Italy; Unit of Neuropharmacology and Translation Neurosciences, Oasi Research Institute - IRCCS, Via Conte Ruggero 73, 94018 Troina, En, Italy
| | - Raffaele Ferri
- Sleep Research Centre, Department of Neurology IC, Oasi Research Institute - IRCCS, Via Conte Ruggero 73, 94018 Troina, En, Italy
| | - Giuseppe Lanza
- Unit of Neuropharmacology and Translation Neurosciences, Oasi Research Institute - IRCCS, Via Conte Ruggero 73, 94018 Troina, En, Italy; Department of Surgery and Medical-Surgical Specialties, University of Catania, A.O.U. "Policlinico - San Marco", Via Santa Sofia, 78, 95123 Catania, Italy
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Li Q, Shi M, Steward CJ, Che K, Zhou Y. A Comparison Between Pre-Sleep Heart Rate Variability Biofeedback and Electroencephalographic Biofeedback Training on Sleep in National Level Athletes with Sleep Disturbances. Appl Psychophysiol Biofeedback 2024; 49:115-124. [PMID: 37804409 DOI: 10.1007/s10484-023-09604-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2023] [Indexed: 10/09/2023]
Abstract
The current study compared the effects of heart rate variability biofeedback (HRV-BF) and electroencephalographic biofeedback (EEG-BF) on sleep, mood, and reaction time. Fourteen highly trained male athletes with sleep disturbances participated in this randomised crossover study. Participants took part in HRV-BF and EEG-BF training, with each condition consisting of eight sessions over 15 days. Polysomnography (PSG) and the Pittsburgh sleep quality index (PSQI) were used to assess sleep quality, the profile of mood states (POMS) questionnaire to monitor mood, and reaction time to measure performance pre and post intervention. HRV-BF training improved PSG sleep efficiency (SE) (P = 0.022, d = 0.35, 95% CI 0.01 to 0.16) and subjective sleep duration (P = 0.011, ES = 0.40) when compared to EEG-BF. Only HRV-BF reduced reaction time pre to post biofeedback training (P = 0.020, d = 0.75, 95% CI 0.006 to 0.059). The PSQI showed that both HRV-BF (P = 0.025, ES = 0.31) and EEG-BF (P = 0.003, ES = 0.32) resulted in improved global PSQI scores. Total mood disturbance was also reduced though HRV-BF (P = 0.001, ES = 0.40) and EEG-BF (P = 0.001, ES = 0.30). HRV-BF and EEG-BF enhanced some subjective parameters of sleep and mood. HRV-BF increased PSG SE and subjective sleep duration more than EEG-BF in highly trained athletes with sleep disturbances.
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Affiliation(s)
- Qinlong Li
- Department of Sports Science, Beijing Sport University, Beijing, China
| | - Mingqiang Shi
- Department of Sports Science, Beijing Sport University, Beijing, China
| | | | - Kaixuan Che
- Department of Sports Science, Beijing Sport University, Beijing, China
| | - Yue Zhou
- Department of Sports Science, Beijing Sport University, Beijing, China.
- Department of Exercise Physiology, Beijing Sport University, 48 Xinxi Road, Haidian District, Beijing, 100084, China.
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de Mello MT, Stieler E, Grade I, Filho AFC, Mendes G, Ituassu N, Silva A. The Sleep Parameters of Olympic Athletes: Characteristics and Assessment Instruments. Int J Sports Med 2024. [PMID: 38113920 DOI: 10.1055/a-2233-0323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
This systematic review aims to identify the sleep parameters of Olympic athletes and the instruments used to assess and monitor the sleep of these athletes. The search was conducted until February 2023 and was performed in PubMed, Web of Science, and Scopus databases. This systematic review has included studies that investigated at least one of the following sleep parameters: total sleep time (TST), sleep onset latency (SOL), sleep efficiency (SE), awakenings after sleep onset (WASO), quality of sleep, daytime sleepiness, and chronotype; the participants were Olympic athletes. The search returned a total of 280 studies. After screening based on exclusion and inclusion criteria, 11 studies were included. The main results demonstrate that Olympic athletes have TST of 06:10 h, SE of 84%, SOL of 28 min, and WASO of 49 min. The most predominant chronotype is indifferent; over half of the athletes have poor sleep quality and complaints. Furthermore, actigraphy was the most used method to assess sleep. It is concluded that Olympic athletes have TST, SE, and WASO poor than the recommended values. In addition, sleep complaints and poor sleep quality were also observed. Among the objective sleep assessment methods, actigraphy was the method most frequently used in this population.
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Affiliation(s)
| | - Eduardo Stieler
- Sports, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Isadora Grade
- Sports, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Gabriel Mendes
- Physiotherapy, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Natália Ituassu
- Physiotherapy, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Andressa Silva
- Sports, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Costa JA, Vale S, Cordovil R, Rodrigues LP, Cardoso V, Proença R, Costa M, Neto C, Brito J, Guilherme J, Seabra A. A school-based physical activity intervention in primary school: effects on physical activity, sleep, aerobic fitness, and motor competence. Front Public Health 2024; 12:1365782. [PMID: 38444436 PMCID: PMC10912631 DOI: 10.3389/fpubh.2024.1365782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 02/05/2024] [Indexed: 03/07/2024] Open
Abstract
Objective The "Super Quinas" project evaluated the effectiveness of an intervention program to improve physical activity, aerobic fitness, sleep, and motor competence on children in primary school. Methods The experimental group (n = 19) enrolled in a 12-week intervention program (one more extra-curricular activity class of 60 min per week) compared to the CG (n = 19), all aged 9-10 years. Physical activity (PA) and sleep were measured by accelerometry, and aerobic fitness was measured by Children's Yo-Yo test (YYIR1C) during the 1st week (PRE), the 6th week (DUR), and the 12th week (POST) of the intervention program. Motor Competence in PRE and POST intervention was also assessed by the Motor Competence Assessment (MCA) instrument. Heart rate (HR, assessed using HR monitors), and enjoyment level were recorded during all intervention program classes. A linear mixed model analysis (i.e., within-subject analyses) was performed. Results Comparing the EG and CG in DUR and POST, the EG spent ~18 min and ~ 34 min more time in moderate to vigorous physical activity (MVPA) per day (p < 0.001); had ~44 min and ~ 203 min less sedentary time per day (p < 0.001); performed more 44 and 128 m in the Children's Yo-Yo test compared to CG (p < 0.001) and slept more 17 and 114 min per night (p < 0.001). In POST motor competence was significantly better (27%) in the EG compared to CG (p < 0.001). The %HRmax during the extra-curricular classes ranged between 65 and 81% (i.e., light to moderate intensities), and the enjoyment between fun and great fun. Conclusion Our findings suggest that adding one more extra-curricular activity class of 60 min per week for 12 weeks effectively increased the levels of physical activity, aerobic fitness, sleep duration, and motor competence in children aged 9-10 years.
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Affiliation(s)
- Júlio A. Costa
- Portugal Football School, Portuguese Football Federation, FPF, Oeiras, Portugal
| | - Susana Vale
- Politécnico do Porto - Escola Superior de Educação, Porto, Portugal
- CIAFEL/ITR - Universidade do Porto, Porto, Portugal
| | - Rita Cordovil
- CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, Portugal
- Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, Portugal
| | - Luís P. Rodrigues
- Instituto Politécnico de Viana do Castelo, Escola Superior de Desporto e Lazer, SPRINT, Melgaço, Portugal
| | - Vasco Cardoso
- Portugal Football School, Portuguese Football Federation, FPF, Oeiras, Portugal
| | | | - Manuel Costa
- Portugal Football School, Portuguese Football Federation, FPF, Oeiras, Portugal
| | - Carlos Neto
- Faculdade de Motricidade Humana, Universidade de Lisboa, Lisboa, Portugal
| | - João Brito
- Portugal Football School, Portuguese Football Federation, FPF, Oeiras, Portugal
| | - José Guilherme
- Portugal Football School, Portuguese Football Federation, FPF, Oeiras, Portugal
- Faculty of Sport, Centre of Research, Education, Innovation and Intervention in Sport, University of Porto, Porto, Portugal
| | - André Seabra
- Portugal Football School, Portuguese Football Federation, FPF, Oeiras, Portugal
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Whitaker KM, Jones MA, Smith K, Catov J, Feghali M, Kline CE, Santillan M, Santillan D, Zimmerman B, Gibbs BB. Study Design and Protocol of the Multisite Pregnancy 24/7 Cohort Study. Am J Epidemiol 2024; 193:415-425. [PMID: 37939072 DOI: 10.1093/aje/kwad208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 05/29/2023] [Accepted: 10/26/2023] [Indexed: 11/10/2023] Open
Abstract
Hypertensive disorders of pregnancy and other adverse pregnancy outcomes (APOs) are associated with an increased risk of future maternal cardiovascular disease. Physical activity during pregnancy reduces the risk of these APOs, yet few meet physical activity guidelines during pregnancy. Little is known about the role of sedentary behavior or sleep in APOs, a critical gap in knowledge given these behaviors comprise the majority of a 24-hour day. To address this knowledge gap, the Pregnancy 24/7 cohort study (2020-2025) uses 2 devices for 24-hour activity assessment in each trimester of pregnancy to examine associations of sedentary behavior, sleep, and the 24-hour activity cycle (composition of sedentary behavior, physical activity, and sleep) with hypertensive disorders and other APOs. Participants (n = 500) are recruited from the University of Iowa, University of Pittsburgh, and West Virginia University in early pregnancy and followed through delivery. The activPAL3 micro and Actiwatch Spectrum Plus are worn in each trimester for 7 days of 24-hour wear to assess the 24-hour activity cycle. APOs are abstracted from medical charts. This study will provide critical data to fuel future research examining how modifying the 24-hour activity cycle in pregnancy can improve maternal health.
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Goldberg M, Pairot de Fontenay B, Blache Y, Debarnot U. Effects of morning and evening physical exercise on subjective and objective sleep quality: an ecological study. J Sleep Res 2024; 33:e13996. [PMID: 37431176 DOI: 10.1111/jsr.13996] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 07/12/2023]
Abstract
To optimise the relationship between exercise and sleep quality, the intensity of exercise and its proximity to sleep are key factors to manage. Although low-to-moderate exercises promote sleep quality, late-evening vigorous exercise instead of morning should still be avoided. It potentially impacts the objective and subjective markers of sleep quality. In the present study, we investigated the effects of vigorous morning and evening exercise on objective and subjective sleep features in an ecological context. A total of 13 recreational runners (mean [SD] age 27.7 [7.2] years, four females) performed a 45-60 min run (70% maximal aerobic velocity) either in the MORNING (30 min to 2 h after waking-up) or in the EVENING (2 h to 30 min before sleep). The two exercise conditions were separated by a REST day. After each condition, sleep was objectively assessed using an electroencephalographic headband and subjectively using the Spiegel Sleep Inventory. Compared with REST, both MORNING and EVENING exercise increased the time spent in non-rapid eye movement (NREM, +24.9 min and +22.7 min; p = 0.01, η2 = 0.11, respectively). Longer NREM duration was mainly due to sleep stage 2 extension after both MORNING (+20.8 min) and EVENING (+22.8 min) exercise relative to REST (p = 0.02, η2 = 0.12). No other effect of exercise on either objective or subjective sleep could be observed. Exercise, independently of the time at which it takes place, leads to extended NREM sleep without other effects on sleep quality. Considering the crucial role of exercise in achieving good health, sleep hygiene guidelines should be updated to promote exercise at any time of the day.
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Affiliation(s)
- Mathias Goldberg
- Inter-University Laboratory of Human Movement Biology-EA 7424, University Claude Bernard Lyon 1, Villeurbanne, France
| | - Benoit Pairot de Fontenay
- Inter-University Laboratory of Human Movement Biology-EA 7424, University Claude Bernard Lyon 1, Villeurbanne, France
| | - Yoann Blache
- Inter-University Laboratory of Human Movement Biology-EA 7424, University Claude Bernard Lyon 1, Villeurbanne, France
| | - Ursula Debarnot
- Inter-University Laboratory of Human Movement Biology-EA 7424, University Claude Bernard Lyon 1, Villeurbanne, France
- Institut Universitaire de France, Paris, France
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46
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Rogers EM, Banks NF, Jenkins NDM. The effects of sleep disruption on metabolism, hunger, and satiety, and the influence of psychosocial stress and exercise: A narrative review. Diabetes Metab Res Rev 2024; 40:e3667. [PMID: 37269143 DOI: 10.1002/dmrr.3667] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 04/27/2023] [Accepted: 05/18/2023] [Indexed: 06/04/2023]
Abstract
Sleep deficiency is a ubiquitous phenomenon among Americans. In fact, in the United States, ∼78% of teens and 35% of adults currently get less sleep than recommended for their age-group, and the quality of sleep appears to be getting worse for many. The consequences of sleep disruption manifest in a myriad of ways, including insulin resistance and disrupted nutrient metabolism, dysregulation of hunger and satiety, and potentially increased body weight and adiposity. Consequently, inadequate sleep is related to an increased risk of various cardiometabolic diseases, including obesity, diabetes, and heart disease. Exercise has the potential to be an effective therapeutic to counteract the deleterious effects of sleep disruption listed above, whereas chronic psychosocial stress may causally promote sleep disruption and cardiometabolic risk. Here, we provide a narrative review of the current evidence on the consequences of short sleep duration and poor sleep quality on substrate metabolism, circulating appetite hormones, hunger and satiety, and weight gain. Secondly, we provide a brief overview of chronic psychosocial stress and its impact on sleep and metabolic health. Finally, we summarise the current evidence regarding the ability of exercise to counteract the adverse metabolic health effects of sleep disruption. Throughout the review, we highlight areas where additional interrogation and future exploration are necessary.
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Affiliation(s)
- Emily M Rogers
- Integrative Laboratory of Applied Physiology and Lifestyle Medicine, The University of Iowa, Iowa City, Iowa, USA
| | - Nile F Banks
- Integrative Laboratory of Applied Physiology and Lifestyle Medicine, The University of Iowa, Iowa City, Iowa, USA
| | - Nathaniel D M Jenkins
- Integrative Laboratory of Applied Physiology and Lifestyle Medicine, The University of Iowa, Iowa City, Iowa, USA
- Abboud Cardiovascular Research Center, The University of Iowa, Iowa City, Iowa, USA
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Martin J, Estep A, Tozcko M, Hartzel B, Boolani A. Relationships between grit and lifestyle factors in undergraduate college students during the COVID-19 pandemic. JOURNAL OF AMERICAN COLLEGE HEALTH : J OF ACH 2024; 72:614-622. [PMID: 35325588 DOI: 10.1080/07448481.2022.2052078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 12/23/2021] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the influence of grit on physical activity, sleep and diet in undergraduate students during the COVID-19 pandemic. Participants: 125 undergraduate students participated in the study. Participants completed an online survey while enrolled in an online class during June, 2020. Methods: The online questionairre featured the following validated survey instruments: International Physical Activity Questionnaire Short Form, Pittsburgh Sleep Quality Index, the Rapid Eating Assessment for Participants Short Form and the grit short form. Effects of grit on lifestyle behaviors were explored using several statistical approaches. Results: We found that individuals with more grit reported better eating and sleeping behaviors compared to those with less grit. However, we did not find an influence of grit on physical activity or sitting time. Conclusion: Our findings support that personality traits encompassed in grit contribute to college students reporting healthier dietary habits and better sleep quality during a global pandemic.
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Affiliation(s)
- Joel Martin
- Sports Medicine Assessment Research & Testing (SMART) Laboratory, George Mason University, Manassas, Virginia, USA
| | - Amanda Estep
- Austin Peay State University, Clarksville, Tennessee, USA
| | - Michael Tozcko
- Sports Medicine Assessment Research & Testing (SMART) Laboratory, George Mason University, Manassas, Virginia, USA
| | - Bailey Hartzel
- Sports Medicine Assessment Research & Testing (SMART) Laboratory, George Mason University, Manassas, Virginia, USA
| | - Ali Boolani
- Department of Physical Therapy, Clarkson University, Potsdam, New York, USA
- Department of Biology, Clarkson University, Potsdam, New York, USA
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48
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Liu R, Figueroa R, Brink HV, Vorland CJ, Auckburally S, Johnson L, Garay J, Brown T, Simon S, Ells L. The efficacy of sleep lifestyle interventions for the management of overweight or obesity in children: a systematic review and meta-analysis. BMC Public Health 2024; 24:321. [PMID: 38287352 PMCID: PMC10825984 DOI: 10.1186/s12889-024-17708-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 01/09/2024] [Indexed: 01/31/2024] Open
Abstract
BACKGROUND Childhood obesity remains a significant public health concern. Sleep duration and quality among children and youth are suboptimal worldwide. Accumulating evidence suggests an association between inadequate sleep and obesity risk, yet it is unclear whether this relationship is causal. This systematic review examines the efficacy of sleep interventions alone or as a part of lifestyle interventions for the management of overweight or obesity among children and adolescents. METHODS A keyword/reference search was performed twice, in January 2021 and May 2022 in MEDLINE/PubMed, EMBASE/Ovid, PsycINFO/EBSCO, The Cochrane Library, Web of Science Core Collection/Web of Science, SciELO/Web of Science, and CINAHL/EBSCO. Study eligibility criteria included youth with overweight or obesity between 5 and 17, were RCTs or quasi-randomized, and focused on the treatment of overweight and obesity with a sleep behavior intervention component. Risk of bias was assessed using the Cochrane Risk of Bias assessment tool (RoB2). A Meta-analysis was conducted to estimate the effect of interventions with a sleep component on BMI. The study protocol was registered in PROSPERO (CRD42021233329). RESULTS A total of 8 studies (2 quasi-experiments, 6 RCTs) met inclusion criteria and accounted for 2,231 participants across 7 countries. Only one study design isolated the effect of sleep in the intervention and reported statistically significant decreases in weight and waist circumference compared to control, though we rated it at high risk of bias. Our meta-analysis showed no significant overall effect on children's BMI as a result of participation in an intervention with a sleep component (Cohen's d = 0.18, 95% CI= -0.04, 0.40, Z = 1.56, P = .11), though caution is warranted due to substantial heterogeneity observed across studies (Tau2 = 0.08; X2 = 23.05, df = 7; I2 = 83.73%). CONCLUSIONS There were mixed results on the effect of sleep interventions across included studies on BMI, other weight-related outcomes, diet, physical activity, and sleep. Except for one study at low risk of bias, three were rated as 'some concerns' and four 'high risk of bias'. Findings from this study highlight the need for additional RCTs isolating sleep as a component, focusing on children and adolescents living with overweight and obesity.
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Affiliation(s)
- Ruyu Liu
- Division of Nutritional Sciences, College of Human Ecology, Cornell University, Ithaca, NY, USA
| | - Roger Figueroa
- Division of Nutritional Sciences, College of Human Ecology, Cornell University, Ithaca, NY, USA.
| | | | - Colby J Vorland
- Department of Epidemiology and Biostatistics, Indiana University, Bloomington, IN, USA
| | - Sameera Auckburally
- Department of Pediatric Endocrinology, Royal Manchester Children's Hospital, Manchester, UK
| | - Lynn Johnson
- Cornell Statistical Consulting Unit, Cornell University, Ithaca, NY, USA
| | - Jessica Garay
- Falk College of Sport & Human Dynamics, Syracuse University, Syracuse, NY, USA
| | - Tamara Brown
- Obesity Institute, School of Health, Leeds Beckett University, Leeds, UK
| | - Stacey Simon
- Pediatrics - Pulmonary Medicine, Children's Hospital Colorado Anschutz Campus, Aurora, CO, USA
| | - Louisa Ells
- School of Clinical and Applied Sciences, Leeds Beckett University, Leeds, UK
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49
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Weston G, Zilanawala A, Webb E, Carvalho L, McMunn A. Work hours, weekend working, nonstandard work schedules and sleep quantity and quality: findings from the UK household longitudinal study. BMC Public Health 2024; 24:309. [PMID: 38281025 PMCID: PMC10821573 DOI: 10.1186/s12889-024-17762-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 01/13/2024] [Indexed: 01/29/2024] Open
Abstract
BACKGROUND Atypical temporal work patterns such as working longer than the standard 35-40 h/ week, weekend working, and nonstandard work schedules (i.e. outside of the typical 9-5, including but not restricted to shiftwork) are increasingly prevalent in the UK. Aside from occupation-specific studies, little is known about the effects of these atypical temporal work patterns on sleep among workers in the UK, even though poor sleep has been linked to adverse health problems, lower workplace productivity, and economic costs. METHOD We used regression models to investigate associations between three types of atypical temporal work patterns (long and short weekly work hours, weekend working, and nonstandard schedules) and sleep duration and disturbance using data from over 25,000 employed men and women from 2012-2014 and/or 2015-2017 in the UK Household Longitudinal Study, adjusting for potential confounders and psychosocial work factors. RESULTS We found that relative to a standard 35-40 h/week, working 55 h/week or more was related to short sleep (less than 7 h/night) and sleep disturbance. Working most/all weekends compared to non-weekends was associated with short sleep, long sleep (more than 8 h/night), and sleep disturbance, as was working nonstandard schedules relative to standard schedules (fixed day-time schedules). Further analyses suggested some gender differences. CONCLUSIONS These results should prompt employers and policymakers to recognise the need for rest and recovery, consider how the timing and scheduling of work might be improved to better support workers' health and productivity, and consider appropriate compensation for anyone required to work atypical temporal work patterns.
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Affiliation(s)
- Gillian Weston
- ESRC International Centre for Lifecourse Studies, Research Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London, WC1E 6BT, UK.
| | - Afshin Zilanawala
- Department of Social Statistics and Demography, University of Southampton, University Road, Southampton, SO17 1BJ, UK
| | - Elizabeth Webb
- Age UK, 7th Floor, One America Square, 17 Crosswall, London, EC3N 2LB, UK
| | - Livia Carvalho
- Department of Clinical Pharmacology, William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - Anne McMunn
- ESRC International Centre for Lifecourse Studies, Research Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London, WC1E 6BT, UK
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50
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Mishica C, Kyröläinen H, Taskinen S, Hynynen E, Nummela A, Holmberg HC, Linnamo V. Associations between objective measures of performance-related characteristics and perceived stress in young cross-country skiers during pre-season training. J Sports Sci 2024:1-10. [PMID: 38247021 DOI: 10.1080/02640414.2024.2304499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 01/04/2024] [Indexed: 01/23/2024]
Abstract
Monitoring performance-related characteristics of athletes can reveal changes that facilitate training adaptations. Here, we examine the relationships between submaximal running, maximal jump performance (CMJ), concentrations of blood lactate, sleep duration (SD) and latency (SL), and perceived stress (PSS) in junior cross-country skiers during pre-season training. These parameters were monitored in 15 male and 14 females (17 ± 1 years) for the 12-weeks prior to the competition season, and the data was analysed using linear and mixed-effect models. An increase in SD exerted a decrease in both PSS (B = -2.79, p ≤ 0.01) and blood lactate concentrations during submaximal running (B = -0.623, p ≤ 0.05). In addition, there was a negative relationship between SL and CMJ (B = -0.09, p = 0.08). Compared to males, females exhibited higher PSS scores and little or no change in performance-related tests. A significant interaction between time and sex was present in CMJ with males displaying an effect of time on CMJ performance. For all athletes, lower PSS appeared to be associated with longer overnight sleep. Since the females experienced higher levels of stress, monitoring of their PSS might be beneficial. These findings have implications for the preparation of young athletes' competition season.
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Affiliation(s)
- Christina Mishica
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Heikki Kyröläinen
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Sara Taskinen
- Department of Mathematics and Statistics, University of Jyväskylä, Jyväskylä, Finland
| | - Esa Hynynen
- Finnish Institute of High-Performance Sport KIHU, Jyväskylä, Finland
| | - Ari Nummela
- Finnish Institute of High-Performance Sport KIHU, Jyväskylä, Finland
| | | | - Vesa Linnamo
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
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