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Granat MH, Ahmadi MN, Stamatakis E, Hamer M. The Effect of Using Anchored Wake Time to Derive 24-h Device Measured Circadian Physical Behavior Patterns. Scand J Med Sci Sports 2024; 34:e14684. [PMID: 38926910 DOI: 10.1111/sms.14684] [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: 11/28/2023] [Revised: 05/08/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024]
Abstract
INTRODUCTION Tailoring physical activity interventions to individual chronotypes and preferences by time of day could promote more effective and sustainable behavior change; however, our understanding of circadian physical behavior patterns is very limited. OBJECTIVE To characterize and compare 24-h physical behavior patterns expressed relative to clock time (the standard measurement of time-based on a 24-h day) versus wake-up time in a large British cohort age 46. METHODS Data were analyzed from 4979 participants in the age 46 sweep of the 1970 British Cohort Study who had valid activPAL accelerometer data across ≥4 days. Average steps and upright time (time standing plus time stepping) per 30-min interval were determined for weekdays and weekends, both in clock time and synchronized to individual wake-up times. RESULTS The mean weekday steps were 9588, and the mean weekend steps were 9354. The mean weekday upright time was 6.6 h, and the mean weekend upright time was 6.4 h. When synchronized to wake-up time, steps peaked 1 h after waking on weekdays and 2.5 h after waking on weekends. Upright time peaked immediately, in the first 30-min window, after waking on both weekdays and weekends. CONCLUSIONS Aligning accelerometer data to wake-up times revealed distinct peaks in stepping and upright times shortly after waking. Activity built up more gradually across clock time in the mornings, especially on weekends. Synchronizing against wake-up times highlighted the importance of circadian rhythms and personal schedules in understanding population 24-h physical behavior patterns, and this may have important implications for promoting more effective and sustainable behavior change.
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Affiliation(s)
- Malcolm H Granat
- School of Health and Society, University of Salford, Salford, UK
| | - Matthew N Ahmadi
- Faculty of Medicine and Health, Charles Perkins Centre, School of Health Sciences, University of Sydney, Sydney, New South Wales, Australia
- Mackenzie Wearables Research Hub, Charles Perkins Centre, University of Sydney, Sydney, New South Wales, Australia
| | - Emmanuel Stamatakis
- Faculty of Medicine and Health, Charles Perkins Centre, School of Health Sciences, University of Sydney, Sydney, New South Wales, Australia
- Mackenzie Wearables Research Hub, Charles Perkins Centre, University of Sydney, Sydney, New South Wales, Australia
| | - Mark Hamer
- Division of Surgery & Interventional Science, Faculty of Medical Sciences, Institute Sport Exercise & Health, University College London, London, UK
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Malin SK. Exercise time of day and blood pressure: Considering chronotype for precision health. J Hum Hypertens 2024; 38:580-581. [PMID: 38937636 PMCID: PMC11239485 DOI: 10.1038/s41371-024-00929-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2024] [Revised: 06/18/2024] [Accepted: 06/21/2024] [Indexed: 06/29/2024]
Affiliation(s)
- Steven K Malin
- Department of Kinesiology & Health, Rutgers University, New Brunswick, NJ, USA.
- Division of Endocrinology, Metabolism & Nutrition, Department of Medicine, New Brunswick, NJ, USA.
- New Jersey Institute for Food, Nutrition & Health, Rutgers University, New Brunswick, NJ, USA.
- Institute for Translational Science & Medicine, Rutgers University, New Brunswick, NJ, USA.
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Viggars MR, Berko HE, Hesketh SJ, Wolff CA, Gutierrez-Monreal MA, Martin RA, Jennings IG, Huo Z, Esser KA. Skeletal muscle BMAL1 is necessary for transcriptional adaptation of local and peripheral tissues in response to endurance exercise training. Mol Metab 2024; 86:101980. [PMID: 38950777 DOI: 10.1016/j.molmet.2024.101980] [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: 04/28/2024] [Revised: 06/17/2024] [Accepted: 06/26/2024] [Indexed: 07/03/2024] Open
Abstract
OBJECTIVE In this investigation, we addressed the contribution of the core circadian clock factor, BMAL1, in skeletal muscle to both acute transcriptional responses to exercise and transcriptional remodeling in response to exercise training. Additionally, we adopted a systems biology approach to investigate how loss of skeletal muscle BMAL1 altered peripheral tissue homeostasis as well as exercise training adaptations in iWAT, liver, heart, and lung of male mice. METHODS Combining inducible skeletal muscle specific BMAL1 knockout mice, physiological testing and standardized exercise protocols, we performed a multi-omic analysis (transcriptomics, chromatin accessibility and metabolomics) to explore loss of muscle BMAL1 on muscle and peripheral tissue responses to exercise. RESULTS Muscle-specific BMAL1 knockout mice demonstrated a blunted transcriptional response to acute exercise, characterized by the lack of upregulation of well-established exercise responsive transcription factors including Nr4a3 and Ppargc1a. Six weeks of exercise training in muscle-specific BMAL1 knockout mice induced significantly greater and divergent transcriptomic and metabolomic changes in muscle. Surprisingly, liver, lung, inguinal white adipose and heart showed divergent exercise training transcriptomes with less than 5% of 'exercise-training' responsive genes shared for each tissue between genotypes. CONCLUSIONS Our investigation has uncovered the critical role that BMAL1 plays in skeletal muscle as a key regulator of gene expression programs for both acute exercise and training adaptations. In addition, our work has uncovered the significant impact that altered exercise response in muscle and its likely impact on the system plays in the peripheral tissue adaptations to exercise training. Our work also demonstrates that if the muscle adaptations diverge to a more maladaptive state this is linked to increased gene expression signatures of inflammation across many tissues. Understanding the molecular targets and pathways contributing to health vs. maladaptive exercise adaptations will be critical for the next stage of therapeutic design for exercise mimetics.
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Affiliation(s)
- Mark R Viggars
- Department of Physiology and Aging, University of Florida, Gainesville, FL, United States; Myology Institute, University of Florida, Gainesville, FL, United States.
| | - Hannah E Berko
- Department of Physiology and Aging, University of Florida, Gainesville, FL, United States; Myology Institute, University of Florida, Gainesville, FL, United States
| | - Stuart J Hesketh
- Department of Physiology and Aging, University of Florida, Gainesville, FL, United States; Myology Institute, University of Florida, Gainesville, FL, United States; School of Medicine, University of Central Lancashire, United Kingdom
| | - Christopher A Wolff
- Department of Physiology and Aging, University of Florida, Gainesville, FL, United States; Myology Institute, University of Florida, Gainesville, FL, United States
| | - Miguel A Gutierrez-Monreal
- Department of Physiology and Aging, University of Florida, Gainesville, FL, United States; Myology Institute, University of Florida, Gainesville, FL, United States
| | - Ryan A Martin
- Department of Physiology and Aging, University of Florida, Gainesville, FL, United States; Myology Institute, University of Florida, Gainesville, FL, United States
| | - Isabel G Jennings
- Department of Physiology and Aging, University of Florida, Gainesville, FL, United States; Myology Institute, University of Florida, Gainesville, FL, United States
| | - Zhiguang Huo
- Department of Biostatistics, University of Florida, Gainesville, FL, United States
| | - Karyn A Esser
- Department of Physiology and Aging, University of Florida, Gainesville, FL, United States; Myology Institute, University of Florida, Gainesville, FL, United States.
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4
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Viggars MR, Berko HE, Hesketh SJ, Wolff CA, Gutierrez-Monreal MA, Martin RA, Jennings IG, Huo Z, Esser KA. Skeletal muscle BMAL1 is necessary for transcriptional adaptation of local and peripheral tissues in response to endurance exercise training. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.10.13.562100. [PMID: 37905004 PMCID: PMC10614785 DOI: 10.1101/2023.10.13.562100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Objectives In this investigation, we addressed the contribution of the core circadian clock factor, BMAL1, in skeletal muscle to both acute transcriptional responses to exercise and transcriptional remodelling in response to exercise training. Additionally, we adopted a systems biology approach to investigate how loss of skeletal muscle BMAL1 altered peripheral tissue homeostasis as well as exercise training adaptations in iWAT, liver, heart, and lung of male mice. Methods Combining inducible skeletal muscle specific BMAL1 knockout mice, physiological testing and standardized exercise protocols, we performed a multi-omic analysis (transcriptomics, chromatin accessibility and metabolomics) to explore loss of muscle BMAL1 on muscle and peripheral tissue responses to exercise. Results Muscle-specific BMAL1 knockout mice demonstrated a blunted transcriptional response to acute exercise, characterized by the lack of upregulation of well-established exercise responsive transcription factors including Nr4a3 and Ppargc1a. Six weeks of exercise training in muscle-specific BMAL1 knockout mice induced significantly greater and divergent transcriptomic and metabolomic changes in muscle. Surprisingly, liver, lung, inguinal white adipose and heart showed divergent exercise training transcriptomes with less than 5% of 'exercise-training' responsive genes shared for each tissue between genotypes. Conclusion Our investigation has uncovered the critical role that BMAL1 plays in skeletal muscle as a key regulator of gene expression programs for both acute exercise and training adaptations. In addition, our work has uncovered the significant impact that altered exercise response in muscle plays in the peripheral tissue adaptation to exercise training. We also note that the transcriptome adaptations to steady state training suggest that without BMAL1, skeletal muscle does not achieve the expected homeostatic program. Our work also demonstrates that if the muscle adaptations diverge to a more maladaptive state this is linked to increased inflammation across many tissues. Understanding the molecular targets and pathways contributing to health vs. maladaptive exercise adaptations will be critical for the next stage of therapeutic design for exercise mimetics.
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Affiliation(s)
- Mark R Viggars
- Department of Physiology and Aging, University of Florida, Gainesville, Florida, United States
- Myology Institute, University of Florida, Gainesville, Florida, United States
| | - Hannah E Berko
- Department of Physiology and Aging, University of Florida, Gainesville, Florida, United States
- Myology Institute, University of Florida, Gainesville, Florida, United States
| | - Stuart J Hesketh
- Department of Physiology and Aging, University of Florida, Gainesville, Florida, United States
- Myology Institute, University of Florida, Gainesville, Florida, United States
- School of Medicine, University of Central Lancashire, United Kingdom
| | - Christopher A Wolff
- Department of Physiology and Aging, University of Florida, Gainesville, Florida, United States
- Myology Institute, University of Florida, Gainesville, Florida, United States
| | - Miguel A Gutierrez-Monreal
- Department of Physiology and Aging, University of Florida, Gainesville, Florida, United States
- Myology Institute, University of Florida, Gainesville, Florida, United States
| | - Ryan A Martin
- Department of Physiology and Aging, University of Florida, Gainesville, Florida, United States
- Myology Institute, University of Florida, Gainesville, Florida, United States
| | - Isabel G Jennings
- Department of Physiology and Aging, University of Florida, Gainesville, Florida, United States
- Myology Institute, University of Florida, Gainesville, Florida, United States
| | - Zhiguang Huo
- Department of Biostatistics, University of Florida, Gainesville, Florida, United States
| | - Karyn A Esser
- Department of Physiology and Aging, University of Florida, Gainesville, Florida, United States
- Myology Institute, University of Florida, Gainesville, Florida, United States
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Matsui M, Ishii K, Suzuki K, Togashi K. Chronotype and emotional/behavioral problems mediate the association between leisure screen time and academic achievement in children. Chronobiol Int 2024; 41:513-520. [PMID: 38380819 DOI: 10.1080/07420528.2024.2320231] [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: 09/21/2023] [Accepted: 02/12/2024] [Indexed: 02/22/2024]
Abstract
Leisure screen time is associated with poor academic achievement; however, the mechanism underlying this relationship is unclear. Chronotypes and emotional/behavioral problems may be linked to this association. This study aimed to examine the associations between leisure screen time, chronotype, emotional/behavioral problems, and academic achievement using mediation analysis. A total of 113 children aged 9-12 years participated in this study. All participants were assessed for leisure screen time, chronotype, emotional/behavioral problems, and academic achievement. Leisure screen time was evaluated using a self-reported questionnaire. Chronotypes were measured using The Japanese Children's Chronotype Questionnaire, and the morningness/eveningness (M/E) score was calculated. Emotional/behavioral problems were assessed using The Japanese Strengths and Difficulties Questionnaire, and the total difficulties score (TDS) was calculated. Academic achievement was assessed by the homeroom teacher for each of the seven school subjects. Partial correlation analysis adjusted for grade, sex, and sleep duration indicated that leisure screen time was associated with M/E scores and academic achievement (p < 0.05). There was a positive association between M/E score and TDS (p < 0.05) and a negative association between TDS and academic achievement (p < 0.05). A mediation analysis adjusted for grade, sex, and sleep duration was performed. There was a significant total effect of leisure screen time on academic achievement (p < 0.05). Additionally, the M/E score and TDS significantly mediated the association between leisure screen time and academic achievement (p < 0.05). Our findings suggest that the serial path between chronotype and emotional/behavioral problems weakly but significantly mediates the association of leisure screen time with academic achievement.
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Affiliation(s)
- Masahiro Matsui
- Institute of Health and Sports Science & Medicine, Juntendo University, Chiba, Japan
- Institute of Health and Sport Sciences, University of Tsukuba, Ibaraki, Japan
| | - Kaori Ishii
- Faculty of Sport Sciences, Waseda University, Saitama, Japan
| | - Koya Suzuki
- Institute of Health and Sports Science & Medicine, Juntendo University, Chiba, Japan
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Polańska S, Karykowska A, Pawelec Ł. Associations between chronotype and physical activity and well-being in adults. Chronobiol Int 2024; 41:521-529. [PMID: 38410867 DOI: 10.1080/07420528.2024.2321942] [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: 04/06/2023] [Accepted: 02/18/2024] [Indexed: 02/28/2024]
Abstract
Circadian rhythms influence a preference for people's time of activity and sleep time during the day and the hours of best performance. The aim of the study was to assess the associations between chronotype, physical activity, and well-being in adults aged 20-50. The chronotype, physical activity and well-being scores were determined based on the Composite Scale of Morningness (CSM) questionnaire, the International Physical Activity Questionnaire (IPAQ) and the Well-Being Index (WHO-5) questionnaire, respectively. Study data consisted of the answers of 213 respondents (including 64 men) who took part in an online survey. The Spearman rank correlation coefficient and the matrix scatter plots were used to check the correlations between the CSM score and quality of life parameters' values. General linear models (GLMs) were performed to find differences in quality-of-life parameters between different combinations of sex and chronotype. Morning types showed the highest value of well-being score (mean = 13.48) while evening types the lowest one (mean = 8.35). Evening types spent the most time sitting compared to other chronotypes. Results of this study revealed the significant effect of chronotype on well-being and physical activity among adults. These findings suggest that chronotype is an important factor that psychologists and personal trainers should take into account.
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Affiliation(s)
- Sara Polańska
- Division of Anthropology, Institute of Environmental Biology, Wroclaw University of Environmental and Life Sciences, ul. Kożuchowska 5, Wrocław, Poland
| | - Aleksandra Karykowska
- Division of Anthropology, Institute of Environmental Biology, Wroclaw University of Environmental and Life Sciences, ul. Kożuchowska 5, Wrocław, Poland
| | - Łukasz Pawelec
- Division of Anthropology, Institute of Environmental Biology, Wroclaw University of Environmental and Life Sciences, ul. Kożuchowska 5, Wrocław, Poland
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Tassino B, Silva A. Environmental, social, and behavioral challenges of the human circadian clock in real-life conditions. Front Physiol 2024; 15:1347377. [PMID: 38516211 PMCID: PMC10954801 DOI: 10.3389/fphys.2024.1347377] [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: 12/07/2023] [Accepted: 02/26/2024] [Indexed: 03/23/2024] Open
Abstract
Urban environments, in which ambient light has become a less-reliable entrainer, are challenging for the biological clock to maintain performance. As a consequence, human circadian rhythms are less robust and more variable among individuals. Assessing the individual phase of entrainment, as well as its plastic shifts in response to disturbances of the physical and social environment, is a way to measure circadian disruption. However, this is still difficult to address in real-life scenarios in which several factors modulate the circadian phase not always in a concerted manner. In this perspective, we present the contribution of two real-life situations, in which the circadian system is challenged by important alterations in entraining signals: 1) a trip to the Antarctic summer (socio-environmental challenge), and 2) dancers trained in morning/night shifts (socio-behavioral challenge). Both natural chronobiological experiments are helpful in exploring the functioning and plasticity of the circadian clock and allow for considering individual characteristics and history.
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Affiliation(s)
- Bettina Tassino
- Sección Etología, Instituto de Biología, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
- Grupo de Investigación en Cronobiología, Universidad de la República, Montevideo, Uruguay
| | - Ana Silva
- Grupo de Investigación en Cronobiología, Universidad de la República, Montevideo, Uruguay
- Laboratorio de Neurociencias, Instituto de Biología, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
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Thomas JM, Kern PA, Bush HM, Robbins SJ, Black WS, Pendergast JS, Clasey JL. Exploring the role of sex in the association of late chronotype on cardiorespiratory fitness. Physiol Rep 2024; 12:e15924. [PMID: 38296465 PMCID: PMC10830391 DOI: 10.14814/phy2.15924] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 01/01/2024] [Accepted: 01/01/2024] [Indexed: 02/05/2024] Open
Abstract
Circadian rhythms differ between young adult males and females. For example, males tend to be later chronotypes, preferring later timing of sleep and activity, than females. Likewise, there are sex differences in body composition and cardiorespiratory fitness. Few studies have investigated the association between circadian rhythms, cardiorespiratory fitness, and body composition. We sought to determine whether chronotype and circadian phase were associated with cardiorespiratory fitness, body composition, and anthropometric measures in sedentary males and females. Fifty-nine adults participated in the study. Circadian phase and chronotype were measured using dim light melatonin onset (DLMO) and the Morningness-Eveningness Questionnaire (MEQ) score. We used peak oxygen uptake (VO2peak ) results from a maximal graded exercise test to assess cardiorespiratory fitness. Body composition, BMI, and circumferences were collected as markers of adiposity. We observed a sex difference in the association between DLMO and VO2peak . For males, a later DLMO was associated with a lower VO2peak . VO2peak did not vary based on DLMO in females. Later circadian phase was also associated with increased body fat percentage, fat mass index, and abdominal circumference in males, but not females. Collectively, these results suggest that males who are later chronotypes may be at risk of obesity and low cardiorespiratory fitness.
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Affiliation(s)
- J. Matthew Thomas
- Department of Kinesiology and Health PromotionUniversity of KentuckyLexingtonKentuckyUSA
- Department of BiologyUniversity of KentuckyLexingtonKentuckyUSA
- Center for Clinical and Translational ScienceUniversity of KentuckyLexingtonKentuckyUSA
- Sanders‐Brown Center on AgingUniversity of KentuckyLexingtonKentuckyUSA
| | - Philip A. Kern
- Center for Clinical and Translational ScienceUniversity of KentuckyLexingtonKentuckyUSA
- The Department of Internal Medicine, Division of EndocrinologyUniversity of KentuckyLexingtonKentuckyUSA
- Barnstable Brown Diabetes CenterUniversity of KentuckyLexingtonKentuckyUSA
| | - Heather M. Bush
- Center for Clinical and Translational ScienceUniversity of KentuckyLexingtonKentuckyUSA
- Department of BiostatisticsUniversity of KentuckyLexingtonKentuckyUSA
| | - Sarah J. Robbins
- Center for Clinical and Translational ScienceUniversity of KentuckyLexingtonKentuckyUSA
- Department of BiostatisticsUniversity of KentuckyLexingtonKentuckyUSA
| | - W. Scott Black
- Department of Kinesiology and Health PromotionUniversity of KentuckyLexingtonKentuckyUSA
- University Health ServiceUniversity of KentuckyLexingtonKentuckyUSA
| | - Julie S. Pendergast
- Department of BiologyUniversity of KentuckyLexingtonKentuckyUSA
- Center for Clinical and Translational ScienceUniversity of KentuckyLexingtonKentuckyUSA
- Barnstable Brown Diabetes CenterUniversity of KentuckyLexingtonKentuckyUSA
- Saha Cardiovascular Research CenterUniversity of KentuckyLexingtonKentuckyUSA
| | - Jody L. Clasey
- Department of Kinesiology and Health PromotionUniversity of KentuckyLexingtonKentuckyUSA
- Center for Clinical and Translational ScienceUniversity of KentuckyLexingtonKentuckyUSA
- Barnstable Brown Diabetes CenterUniversity of KentuckyLexingtonKentuckyUSA
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Pradhan S, Parganiha A, Agashe CD, Pati AK. Circadian rhythm in sportspersons and athletic performance: A mini review. Chronobiol Int 2024; 41:137-181. [PMID: 38247325 DOI: 10.1080/07420528.2024.2305663] [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: 07/28/2023] [Accepted: 01/09/2024] [Indexed: 01/23/2024]
Abstract
Circadian rhythms in the physiological and behavioral processes of humans play a crucial role in the quality of living and also in the magnitude of success and failure in various endeavors including competitive sports. The rhythmic activities of the body and performance in sportspersons do have a massive impact on their every cutthroat competition. It is essential to schedule sports activities and training of players according to their circadian typology and time of peak performance for improved performance and achievement. In this review, the focus is on circadian rhythms and diurnal variations in peak athletic performance in sportspersons. Accuracy and temporal variability in peak performance in an individual could be attributed to various factors, namely chronotype, time of the day, body temperature, jetlag, hormones, and prior light exposure. Circadian rhythm of mood, alertness, T-core, and ultimately athletic performance is not only affected by sleep but also by circadian variations in hormones, such as cortisol, testosterone, and melatonin. There are, however, a few reports that are not consistent with the conclusions drawn in this review. Nevertheless, circadian rhythm and performance among sportspersons and athletes are important areas of research. This review might be useful to the managers and policymakers associated with competitive sports and athletic events.
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Affiliation(s)
- Sraddha Pradhan
- School of Studies in Life Science, Pt. Ravishankar Shukla University, Raipur, India
| | - Arti Parganiha
- School of Studies in Life Science, Pt. Ravishankar Shukla University, Raipur, India
- Center for Translational Chronobiology, Pt. Ravishankar Shukla University, Raipur, India
| | - C D Agashe
- School of Studies in Physical Education, Pt. Ravishankar Shukla University, Raipur, India
| | - Atanu Kumar Pati
- School of Studies in Life Science, Pt. Ravishankar Shukla University, Raipur, India
- Center for Translational Chronobiology, Pt. Ravishankar Shukla University, Raipur, India
- School of Comparative Indic Studies and Tribal Sciences, Kalinga Institute of Social Sciences - Deemed to be a University, Bhubaneswar, India
- Odisha State Higher Education Council, Government of Odisha, Bhubaneswar, India
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Shah NM, Bennett C, Hassan H, Kaltsakas G. Sleep disorders and exercise: a mini-review. J Thorac Dis 2023; 15:5863-5872. [PMID: 37969282 PMCID: PMC10636486 DOI: 10.21037/jtd-23-17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 09/01/2023] [Indexed: 11/17/2023]
Abstract
Sleep disturbance in a growing problem in the general population. As the prevalence of sleep disturbance rises, interest in treatment modalities including non-pharmaceutical interventions also grows. One of these potential modalities is exercise therapy. In individuals without sleep disorders, exercise appears to be beneficial in improving sleep architecture without any impact of the timing of exercise in relation to onset of sleep. The mechanisms for this are largely unknown but may be due to a combination of the effects of exercise on body temperature, autonomic control, endocrine and metabolic function. In obstructive sleep apnoea (OSA), supervised exercise therapy appears to have positive impact on daytime sleepiness with an unknown impact on sleep quality. The effect of exercise on central sleep apnoea (CSA) will be difficult to ascertain due to the low prevalence of this condition. In primary sleep disorders such as insomnia, narcolepsy and restless syndrome exercise may be useful in improving sleep architecture but the quality of the evidence supporting this remains low. In addition, the timing of exercise in relation to sleep onset remains under investigated. In individuals with circadian rhythm disorders, evening exercise appears to delay sleep onset. In shift-pattern workers, individuals with increased cardiorespiratory fitness report better sleep quality, suggesting exercise may be protective in this important population. To allow high quality evidence-based recommendations to be made about the value of exercise in individuals with sleep disorders, there is a significant need for large prospective studies with objective and subjective sleep quality as a primary outcome.
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Affiliation(s)
- Neeraj Mukesh Shah
- Lane Fox Respiratory Service, St. Thomas’ Hospital, Guy’s and St. Thomas’ NHS Foundation Trust, London, UK
- Lane Fox Clinical Respiratory Physiology Centre, Guy’s and St. Thomas’ NHS Foundation Trust, London, UK
- Centre for Human and Applied Physiological Sciences (CHAPS), King’s College London, London, UK
| | - Christina Bennett
- Lane Fox Respiratory Service, St. Thomas’ Hospital, Guy’s and St. Thomas’ NHS Foundation Trust, London, UK
- Centre for Human and Applied Physiological Sciences (CHAPS), King’s College London, London, UK
| | - Hira Hassan
- Lane Fox Respiratory Service, St. Thomas’ Hospital, Guy’s and St. Thomas’ NHS Foundation Trust, London, UK
- Centre for Human and Applied Physiological Sciences (CHAPS), King’s College London, London, UK
| | - Georgios Kaltsakas
- Lane Fox Respiratory Service, St. Thomas’ Hospital, Guy’s and St. Thomas’ NHS Foundation Trust, London, UK
- Lane Fox Clinical Respiratory Physiology Centre, Guy’s and St. Thomas’ NHS Foundation Trust, London, UK
- Centre for Human and Applied Physiological Sciences (CHAPS), King’s College London, London, UK
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11
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Shen B, Ma C, Wu G, Liu H, Chen L, Yang G. Effects of exercise on circadian rhythms in humans. Front Pharmacol 2023; 14:1282357. [PMID: 37886134 PMCID: PMC10598774 DOI: 10.3389/fphar.2023.1282357] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 09/26/2023] [Indexed: 10/28/2023] Open
Abstract
The biological clock system is an intrinsic timekeeping device that integrates internal physiology and external cues. Maintaining a healthy biological clock system is crucial for life. Disruptions to the body's internal clock can lead to disturbances in the sleep-wake cycle and abnormalities in hormone regulation, blood pressure, heart rate, and other vital processes. Long-term disturbances have been linked to the development of various common major diseases, including cardiovascular diseases, metabolic disorders, tumors, neuropsychiatric conditions, and so on. External factors, such as the diurnal rhythm of light, have a significant impact on the body's internal clock. Additionally, as an important non-photic zeitgeber, exercise can regulate the body's internal rhythms to a certain extent, making it possible to become a non-drug intervention for preventing and treating circadian rhythm disorders. This comprehensive review encompasses behavioral, physiological, and molecular perspectives to provide a deeper understanding of how exercise influences circadian rhythms and its association with related diseases.
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Affiliation(s)
- Bingyi Shen
- School of Bioengineering, Dalian University of Technology, Dalian, China
| | - Changxiao Ma
- School of Bioengineering, Dalian University of Technology, Dalian, China
| | - Guanlin Wu
- School of Clinical Medicine, Shanghai University of Medicine & Health Sciences, Shanghai, China
| | - Haibin Liu
- School of Kinesiology and Health Promotion, Dalian University of Technology, Dalian, China
| | - Lihong Chen
- Health Science Center, East China Normal University, Shanghai, China
| | - Guangrui Yang
- School of Clinical Medicine, Shanghai University of Medicine & Health Sciences, Shanghai, China
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Surała O, Malczewska-Lenczowska J, Sitkowski D, Witek K, Słomiński P, Certa M, Madej D. Effect of training load on sleep parameters and biochemical fatigue markers in elite swimmers. Biol Sport 2023; 40:1229-1237. [PMID: 37867745 PMCID: PMC10588581 DOI: 10.5114/biolsport.2023.124843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/02/2022] [Accepted: 01/29/2023] [Indexed: 10/24/2023] Open
Abstract
The effect of strenuous exercise on sleep patterns in swimmers is equivocal. Therefore, the purpose of the study was to describe possible changes in sleep parameters among elite swimmers subjected to different training loads (TL). Methods: Eighteen elite swimmers (8 females) were monitored across two high-volume preparatory 1-wk periods (P1, P2) and a lower-volume tapering 1-wk period (P3) before a major competition. Internal (the session rating of perceived exertion [sRPE]) and external TL (training duration and volume) were measured, along with several sleep indices (e.g., bedtime, get-up time, sleep time, wake after sleep onset [WASO]). Serum measurements of urea, creatine kinase (CK), testosterone and cortisol were taken before and after training sessions at the beginning (Mondays) and end (Fridays) of each micro cycle. Athlete TL decreased significantly in a stepwise manner from P1 to P2 and from P2 to P3. Of all sleep parameters, only significant differences in bedtime and get-up time emerged (P3 > P1 and/or P2). Sleep duration (~6.3 h) or quality (WASO: 41-45 min) were also unaffected by TL. CK levels declined from P1 to P3 (d = -0.8), and from P2 to P3 (d = -0.6). Positive exercise-induced changes in CK were also seen in each training period. The other biomarkers did not show the same temporal or acute patterns. Irrespective of the TL, the monitored swimmers experienced insufficient and fragmented sleep across this study. Neither sleep quality nor quantity were affected by different magnitudes of TL. Among the biochemical markers of fatigue, baseline plasma CK activity best reflected the physiological response to TL.
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Affiliation(s)
- Olga Surała
- Institute of Sport – National Research Institute, Warsaw, Poland
| | | | | | - Konrad Witek
- Institute of Sport – National Research Institute, Warsaw, Poland
| | - Paweł Słomiński
- Józef Piłsudski University of Physical Education, Warsaw, Poland
| | - Maciej Certa
- Józef Piłsudski University of Physical Education, Warsaw, Poland
| | - Dawid Madej
- Warsaw University of Life Sciences – SGGW, Warsaw, Poland
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13
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Martínez-Montoro JI, Benítez-Porres J, Tinahones FJ, Ortega-Gómez A, Murri M. Effects of exercise timing on metabolic health. Obes Rev 2023; 24:e13599. [PMID: 37416977 DOI: 10.1111/obr.13599] [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: 12/21/2022] [Revised: 04/12/2023] [Accepted: 06/12/2023] [Indexed: 07/08/2023]
Abstract
The increasing prevalence of metabolic syndrome is associated with major health and socioeconomic consequences. Currently, physical exercise, together with dietary interventions, is the mainstay of the treatment of obesity and related metabolic complications. Although exercise training includes different modalities, with variable intensity, duration, volume, or frequency, which may have a distinct impact on several characteristics related to metabolic syndrome, the potential effects of exercise timing on metabolic health are yet to be fully elucidated. Remarkably, promising results with regard to this topic have been reported in the last few years. Similar to other time-based interventions, including nutritional therapy or drug administration, time-of-day-based exercise may become a useful approach for the management of metabolic disorders. In this article, we review the role of exercise timing in metabolic health and discuss the potential mechanisms that could drive the metabolic-related benefits of physical exercise performed in a time-dependent manner.
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Affiliation(s)
- José Ignacio Martínez-Montoro
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma Bionand, Málaga, Spain
- Faculty of Medicine, University of Málaga, Málaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y la Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
| | - Javier Benítez-Porres
- Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma Bionand, Málaga, Spain
- Physical Education and Sport, Faculty of Medicine, University of Málaga, Málaga, Spain
| | - Francisco J Tinahones
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma Bionand, Málaga, Spain
- Faculty of Medicine, University of Málaga, Málaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y la Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
| | - Almudena Ortega-Gómez
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma Bionand, Málaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y la Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
| | - Mora Murri
- Department of Endocrinology and Nutrition, Virgen de la Victoria University Hospital, Málaga, Spain
- Instituto de Investigación Biomédica de Málaga (IBIMA)-Plataforma Bionand, Málaga, Spain
- Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y la Nutrición (CIBERObn), Instituto de Salud Carlos III, Madrid, Spain
- Heart Area Clinical Management Unit, Virgen de la Victoria University Hospital, Málaga, Spain
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14
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Santos JS, Skene DJ, Crispim CA, Moreno CRDC. Seasonal and Regional Differences in Eating Times in a Representative Sample of the Brazilian Population. Nutrients 2023; 15:4019. [PMID: 37764802 PMCID: PMC10535183 DOI: 10.3390/nu15184019] [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: 08/09/2023] [Revised: 09/13/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Human food intake and its timing are a complex behavior that can be influenced by a variety of factors, some of which may vary from season to season or from region to region. In this study, our aim was to investigate the seasonal variation in food intake times, with a particular focus on how these may vary across different regions of a country. We conducted an analysis of data from 20,622 adults from the National Household Budget Survey (POF-IBGE), encompassing complete food diaries collected from individuals residing in Brazil, and thereby ensuring representation across different latitudes. Each participant's daily food intake was reported for two non-consecutive days at different times in the same week using food diaries. An ANOVA revealed a later food intake time in the evening in high-latitude regions compared to low-latitude regions. The Sidak post-hoc test showed a significant interaction effect between region and season, demonstrating a pattern of early First Intake Time and Eating Midpoint in the Northeast region during spring/summer. Additionally, we observed an independent effect of the region, as early food intake times were found in low-latitude regions. These findings offer a basis for discussing food intake times among individuals living in different regions located on distinct latitudes.
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Affiliation(s)
- Jefferson Souza Santos
- Department of Health, Life Cycles and Society, School of Public Health, University of São Paulo, São Paulo 01246-904, Brazil;
| | - Debra Jean Skene
- Chronobiology, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK; (D.J.S.); (C.A.C.)
| | - Cibele Aparecida Crispim
- Chronobiology, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK; (D.J.S.); (C.A.C.)
- Chrononutrition Research Group, Faculty of Medicine, Federal University of Uberlândia, Uberlândia 38405-320, Brazil
| | - Claudia Roberta de Castro Moreno
- Department of Health, Life Cycles and Society, School of Public Health, University of São Paulo, São Paulo 01246-904, Brazil;
- Psychology Department, Stockholm University, 114 19 Stockholm, Sweden
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15
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Smith JAB, Murach KA, Dyar KA, Zierath JR. Exercise metabolism and adaptation in skeletal muscle. Nat Rev Mol Cell Biol 2023; 24:607-632. [PMID: 37225892 PMCID: PMC10527431 DOI: 10.1038/s41580-023-00606-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/30/2023] [Indexed: 05/26/2023]
Abstract
Viewing metabolism through the lens of exercise biology has proven an accessible and practical strategy to gain new insights into local and systemic metabolic regulation. Recent methodological developments have advanced understanding of the central role of skeletal muscle in many exercise-associated health benefits and have uncovered the molecular underpinnings driving adaptive responses to training regimens. In this Review, we provide a contemporary view of the metabolic flexibility and functional plasticity of skeletal muscle in response to exercise. First, we provide background on the macrostructure and ultrastructure of skeletal muscle fibres, highlighting the current understanding of sarcomeric networks and mitochondrial subpopulations. Next, we discuss acute exercise skeletal muscle metabolism and the signalling, transcriptional and epigenetic regulation of adaptations to exercise training. We address knowledge gaps throughout and propose future directions for the field. This Review contextualizes recent research of skeletal muscle exercise metabolism, framing further advances and translation into practice.
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Affiliation(s)
- Jonathon A B Smith
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Kevin A Murach
- Molecular Mass Regulation Laboratory, Exercise Science Research Center, Department of Health, Human Performance and Recreation, University of Arkansas, Fayetteville, AR, USA
| | - Kenneth A Dyar
- Metabolic Physiology, Institute for Diabetes and Cancer, Helmholtz Diabetes Center, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Juleen R Zierath
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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16
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Kim N, Ka S, Park J. Effects of exercise timing and intensity on physiological circadian rhythm and sleep quality: a systematic review. Phys Act Nutr 2023; 27:52-63. [PMID: 37946447 PMCID: PMC10636512 DOI: 10.20463/pan.2023.0029] [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: 09/16/2023] [Revised: 09/28/2023] [Accepted: 09/29/2023] [Indexed: 11/12/2023] Open
Abstract
PURPOSE Humans show near-24-h physiological and behavioral rhythms, which encompass the daily cycle of sleep and wakefulness. Exercise stimulates circadian rhythms, including those of cortisol, melatonin, and core body temperature, and affects sleep quality. We systematically reviewed studies that examined the effects of exercise intensity and timing on physiological circadian rhythms and sleep quality. METHODS In this systematic review, we used the online databases PubMed, Science Direct, Web of Science, and Embase. This review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Two independent and experienced systematic reviewers performed the search and selected relevant studies. The participant, intervention, comparison, and outcome characteristics were: (1) adults; (2) exercise treatment; (3) no exercise treatment or different types of exercise (pre-exercise baseline); (4) cortisol, melatonin, or core body temperature measurement, and subjective or objective sleep quality assessments. RESULTS We identified 9 relevant articles involving 201 participants (77.1% of whom were male). Our review revealed that short-term evening exercise delayed melatonin rhythm and increased nocturnal core body temperature; however, no negative effects on non-rapid eye movement sleep and sleep efficiency were observed. Moreover, no differences in sleep quality were observed between acute high-intensity and moderate-intensity exercises. With long exercise durations, the core body temperature tended to increase and return to baseline levels at 30-120 min. CONCLUSION Our review showed that short-term evening exercise and high-intensity exercise did not have a significant negative effect on sleep quality but physiological circadian rhythm tended to alter. Longterm morning exercise tended to decrease cortisol concentrations after awakening and improve sleep quality. Future studies should examine the effects of long-term exercise timing and intensity on circadian rhythm and sleep.
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Affiliation(s)
- Nahyun Kim
- Department of Physical Education, Korea University, Seoul, Republic of Korea
| | - Soonjo Ka
- Department of Physical Education, Korea University, Seoul, Republic of Korea
| | - Jonghoon Park
- Department of Physical Education, Korea University, Seoul, Republic of Korea
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17
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Nobari H, Azarian S, Saedmocheshi S, Valdés-Badilla P, García Calvo T. Narrative review: The role of circadian rhythm on sports performance, hormonal regulation, immune system function, and injury prevention in athletes. Heliyon 2023; 9:e19636. [PMID: 37809566 PMCID: PMC10558889 DOI: 10.1016/j.heliyon.2023.e19636] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 08/21/2023] [Accepted: 08/29/2023] [Indexed: 10/10/2023] Open
Abstract
Objectives This study was a narrative review of the importance of circadian rhythm (CR), describes the underlying mechanisms of CR in sports performance, emphasizes the reciprocal link between CR, endocrine homeostasis and sex differences, and the unique role of the circadian clock in immune system function and coordination. Method As a narrative review study, a comprehensive search was conducted in PubMed, Scopus, and Web of Science (core collection) databases using the keywords "circadian rhythm", "sports performance", "hormonal regulation", "immune system", and "injury prevention". Inclusion criteria were studies published in English and peer-reviewed journals until July 2023. Studies that examined the role of CR in sports performance, hormonal status, immune system function, and injury prevention in athletes were selected for review. Results CR is followed by almost all physiological and biochemical activities in the human body. In humans, the superchiasmatic nucleus controls many daily biorhythms under solar time, including the sleep-wake cycle. A body of literature indicates that the peak performance of essential indicators of sports performance is primarily in the afternoon hours, and the evening of actions occurs roughly at the peak of core body temperature. Recent studies have demonstrated that the time of day that exercise is performed affects the achievement of good physical performance. This review also shows various biomarkers of cellular damage in weariness and the underlying mechanisms of diurnal fluctuations. According to the clock, CR can be synchronized with photonic and non-photonic stimuli (i.e., temperature, physical activity, and food intake), and feeding patterns and diet changes can affect CR and redox markers. It also emphasizes the reciprocal links between CR and endocrine homeostasis, the specific role of the circadian clock in coordinating immune system function, and the relationship between circadian clocks and sex differences. Conclusion The interaction between insufficient sleep and time of day on performance has been established in this study because it is crucial to balance training, recovery, and sleep duration to attain optimal sports performance.
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Affiliation(s)
- Hadi Nobari
- Faculty of Sport Sciences, University of Extremadura, 10003, Cáceres, Spain
- Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, 56199-11367, Iran
| | - Somayeh Azarian
- Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, 56199-11367, Iran
| | - Saber Saedmocheshi
- Department of Physical Education and Sport Sciences, Faculty of Humanities and Social Sciences, University of Kurdistan, Sanandaj, 66177-15175, Iran
| | - Pablo Valdés-Badilla
- Department of Physical Activity Sciences, Faculty of Education Sciences, Universidad Católica del Maule, Talca, 3530000, Chile
- Sports Coach Career, School of Education, Universidad Viña del Mar, Viña del Mar, 2520000, Chile
| | - Tomás García Calvo
- Faculty of Sport Sciences, University of Extremadura, 10003, Cáceres, Spain
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18
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In Het Panhuis W, Schönke M, Modder M, Tom HE, Lalai RA, Pronk ACM, Streefland TCM, van Kerkhof LWM, Dollé MET, Depuydt MAC, Bot I, Vos WG, Bosmans LA, van Os BW, Lutgens E, Rensen PCN, Kooijman S. Time-restricted feeding attenuates hypercholesterolaemia and atherosclerosis development during circadian disturbance in APOE∗3-Leiden.CETP mice. EBioMedicine 2023; 93:104680. [PMID: 37356205 DOI: 10.1016/j.ebiom.2023.104680] [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: 12/23/2022] [Revised: 06/10/2023] [Accepted: 06/12/2023] [Indexed: 06/27/2023] Open
Abstract
BACKGROUND Circadian disturbance (CD) is the consequence of a mismatch between endogenous circadian rhythms, behaviour, and/or environmental cycles, and frequently occurs during shift work. Shift work has been associated with elevated risk for atherosclerotic cardiovascular disease (asCVD) in humans, but evidence for the effectiveness of prevention strategies is lacking. METHODS Here, we applied time-restricted feeding (TRF) as a strategy to counteract atherosclerosis development during CD in female APOE∗3-Leiden.CETP mice, a well-established model for humanized lipoprotein metabolism. Control groups were subjected to a fixed 12:12 h light-dark cycle, while CD groups were subjected to 6-h phase advancement every 3 days. Groups had either ad libitum (AL) access to food or were subjected to TRF with restricted food access to the dark phase. FINDINGS TRF did not prevent the increase in the relative abundance of circulating inflammatory monocytes and elevation of (postprandial) plasma triglycerides during CD. Nonetheless, TRF reduced atherosclerotic lesion size and prevented an elevation in macrophage content of atherosclerotic lesions during CD, while it increased the relative abundance of anti-inflammatory monocytes, prevented activation of T cells, and lowered plasma total cholesterol levels and markers of hepatic cholesterol synthesis. These effects were independent of total food intake. INTERPRETATION We propose that time restricted eating could be a promising strategy for the primary prevention of asCVD risk in shift workers, which warrants future study in humans. FUNDING This work was funded by the Novo Nordisk Foundation, the Netherlands Ministry of Social Affairs and Employment, Amsterdam Cardiovascular Sciences, and the Dutch Heart Foundation.
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Affiliation(s)
- Wietse In Het Panhuis
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Milena Schönke
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Melanie Modder
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Hannah E Tom
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Reshma A Lalai
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Amanda C M Pronk
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Trea C M Streefland
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Linda W M van Kerkhof
- Centre for Health Protection, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Martijn E T Dollé
- Centre for Health Protection, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Marie A C Depuydt
- Leiden Academic Centre for Drug Research, Division of Biotherapeutics, Leiden University, Leiden, the Netherlands
| | - Ilze Bot
- Leiden Academic Centre for Drug Research, Division of Biotherapeutics, Leiden University, Leiden, the Netherlands
| | - Winnie G Vos
- Department of Medical Biochemistry, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Cardiovascular Sciences, Atherosclerosis & Ischemic Syndromes, Amsterdam, the Netherlands; Amsterdam Immunity and Infection, Amsterdam, the Netherlands
| | - Laura A Bosmans
- Department of Medical Biochemistry, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Cardiovascular Sciences, Atherosclerosis & Ischemic Syndromes, Amsterdam, the Netherlands; Amsterdam Immunity and Infection, Amsterdam, the Netherlands
| | - Bram W van Os
- Department of Medical Biochemistry, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Cardiovascular Sciences, Atherosclerosis & Ischemic Syndromes, Amsterdam, the Netherlands; Amsterdam Immunity and Infection, Amsterdam, the Netherlands
| | - Esther Lutgens
- Department of Medical Biochemistry, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, the Netherlands; Amsterdam Cardiovascular Sciences, Atherosclerosis & Ischemic Syndromes, Amsterdam, the Netherlands; Amsterdam Immunity and Infection, Amsterdam, the Netherlands; Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Patrick C N Rensen
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Sander Kooijman
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands.
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Barley BK, Gao C, Luster T, Porro A, Parizi-Robinson M, Quigley D, Zinke P, Scullin MK. Chronotype in college science students is associated with behavioral choices and can fluctuate across a semester. Chronobiol Int 2023; 40:710-724. [PMID: 37080776 DOI: 10.1080/07420528.2023.2203251] [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: 10/13/2022] [Revised: 01/18/2023] [Accepted: 04/11/2023] [Indexed: 04/22/2023]
Abstract
Many students self-report that they are "night owls," which can result from neurodevelopmental delays in the circadian timing system. However, whether an individual considers themselves to be an evening-type versus a morning-type (self-reported chronotype) may also be influenced by academic demands (e.g. class start times, course load) and behavioral habits (e.g. bedtime social media use, late caffeine consumption, daytime napping). If so, then chronotype should be malleable. We surveyed 858 undergraduate students enrolled in demanding science courses at up to three time points. The survey assessed morning/evening chronotype, global sleep quality, academics, and behavioral habits. Evening and morning-type students showed similar demographics, stress levels, and academic demands. At baseline measurements, relative to morning-types, evening-types showed significantly worse sleep quality and duration as well as 22% greater bedtime social media usage, 27% greater daytime napping duration, and 46% greater likelihood of consuming caffeine after 5pm. These behavioral habits partially mediated the effects of self-reported chronotype on sleep quality/duration, even after controlling for demographic factors. Interestingly, 54 students reported switching from being at least moderate evening-types at baseline to being at least moderate morning-types later in the semester and 56 students showed the reverse pattern (6.3% of students switched from "definitely" one chronotype to the other chronotype). Evening-to-morning "chrono-switchers" consumed less caffeine after 5pm and showed significantly better sleep quantity/quality at the later timepoint. Thus, some students may consider themselves to be night owls in part because they consume caffeine later, take more daytime naps, or use more social media at bedtime. Experimental work is needed to determine whether nudging night owls to behave like morning larks results in better sleep health or academic achievement.
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Affiliation(s)
- Blake K Barley
- Department of Psychology and Neuroscience, Baylor University, Waco, Texas, USA
| | - Chenlu Gao
- Department of Psychology and Neuroscience, Baylor University, Waco, Texas, USA
- Division of Sleep and Circadian Disorders, Departments of Medicine and Neurology, Brigham and Women's Hospital, Boston, Massachusetts, USA
- Division of Sleep Medicine, Harvard Medical School, Boston, Massachusetts, USA
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA
| | - Taylor Luster
- Department of Psychology and Neuroscience, Baylor University, Waco, Texas, USA
- Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Abbye Porro
- Department of Psychology and Neuroscience, Baylor University, Waco, Texas, USA
| | | | - Dena Quigley
- Department of Biology, Baylor University, Waco, Texas, USA
| | - Paul Zinke
- Department of Chemistry and Biochemistry, Baylor University, Waco, Texas, USA
| | - Michael K Scullin
- Department of Psychology and Neuroscience, Baylor University, Waco, Texas, USA
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Riddell MC, Turner LV, Patton SR. Is There an Optimal Time of Day for Exercise? A Commentary on When to Exercise for People Living With Type 1 or Type 2 Diabetes. Diabetes Spectr 2023; 36:146-150. [PMID: 37193212 PMCID: PMC10182965 DOI: 10.2337/dsi22-0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Exercise is a cornerstone of diabetes self-care because of its association with many health benefits. Several studies that have explored the best time of day to exercise to inform clinical recommendations have yielded mixed results. For example, for people with prediabetes or type 2 diabetes, there may be benefits to timing exercise to occur after meals, whereas people with type 1 diabetes may benefit from performing exercise earlier in the day. One common thread is the health benefits of consistent exercise, suggesting that the issue of exercise timing may be secondary to the goal of helping people with diabetes establish an exercise routine that best fits their life.
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Affiliation(s)
- Michael C. Riddell
- School of Kinesiology and Health Science and Muscle Health Research Centre, York University, Toronto, Ontario, Canada
- Corresponding author: Michael C. Riddell,
| | - Lauren V. Turner
- School of Kinesiology and Health Science and Muscle Health Research Centre, York University, Toronto, Ontario, Canada
| | - Susana R. Patton
- Center for Healthcare Delivery Science, Nemours Children’s Specialty Clinic, Jacksonville, FL
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21
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Screen use before sleep and emotional problems among adolescents: Preliminary evidence of mediating effect of chronotype and social jetlag. J Affect Disord 2023; 328:175-182. [PMID: 36806592 DOI: 10.1016/j.jad.2023.02.049] [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: 08/16/2022] [Revised: 01/28/2023] [Accepted: 02/12/2023] [Indexed: 02/18/2023]
Abstract
BACKGROUND Screen use before sleep is shown to be positively related to emotional problems. However, whether this relationship was mediated by circadian phenotypes (i.e., chronotype and social jetlag) remains unclear. METHODS Data from two independent adolescent surveys among 2685 and 1368 adolescents, respectively, were used. Adolescents reported screen use before sleep (yes/no and screen time), chronotype, social jetlag, and emotional problems using questionnaires. Serial mediation analyses were performed. RESULTS Adolescents who reported screen use before sleep showed later chronotype and greater social jetlag, which was further associated with a higher level of emotional problems. Such relationships held for screen use as a yes/no variable and screen time. The serial indirect effect of chronotype and social jetlag accounted for 6.2%-16.7% of the total effect of screen use before sleep on emotional problems. LIMITATIONS The use of a cross-sectional design did not allow the establishment of causal links between the variables. All data were self-reported by adolescents, and might be subject to report bias and recall bias. CONCLUSIONS These findings contributed to the existing literature by examining the mediating effect of chronotype and social jetlag in the relationship between screen use before sleep and emotional problems from a circadian rhythm perspective. Healthy media use habits and interventions targeting circadian characteristics may work towards promoting emotional health in adolescents.
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22
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Saunders C, Sperling S, Bendstrup E. Concerns regarding a suggested long COVID paradigm – Authors' reply. THE LANCET RESPIRATORY MEDICINE 2023; 11:e36-e37. [PMID: 36997265 DOI: 10.1016/s2213-2600(23)00087-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/11/2023] [Accepted: 02/15/2023] [Indexed: 03/30/2023]
Affiliation(s)
- Chloe Saunders
- Department of Clinical Medicine, Aarhus University, 8000 Aarhus, Denmark
| | - Søren Sperling
- Department of Clinical Medicine, Aarhus University, 8000 Aarhus, Denmark; Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark.
| | - Elisabeth Bendstrup
- Department of Clinical Medicine, Aarhus University, 8000 Aarhus, Denmark; Department of Respiratory Diseases and Allergy, Aarhus University Hospital, Aarhus, Denmark
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Kirchner H, Weisner L, Wilms B. When should I run-the role of exercise timing in metabolic health. Acta Physiol (Oxf) 2023; 237:e13953. [PMID: 36815281 DOI: 10.1111/apha.13953] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 02/24/2023]
Abstract
The prevalence of type 2 diabetes is reaching epidemic proportions. First line therapy approaches are lifestyle interventions including exercise. Although a vast amount of studies reports on beneficial effects of exercise on metabolism in humans per se, overall data are contradictory which makes it difficult to optimize interventions. Innovative exercise strategies and its underlying mechanism are needed to elucidate in order to close this therapeutic gap. The skeletal muscle produces and secretes myokines and microRNAs in response to exercise and both are discussed as mechanisms linking exercise and metabolic adaptation. Aspects of chronophysiology such as diurnal variation in insulin sensitivity or exercise as a signal to reset dysregulated peripheral clocks are of growing interest in the context of impaired metabolism. Deep insight of how exercise timing determines metabolic adaptations is required to optimize exercise interventions. This review aims to summarize the current state of research on the interaction between timing of exercise and metabolism in humans, providing insights into proposed mechanistic concepts focusing on myokines and microRNAs. First evidence points to an impact of timing of exercise on health outcome, although data are inconclusive. Underlying mechanisms remain elusive. It is currently unknown if the timed release of mykokines depends on time of day when exercise is performed. microRNAs have been found as an important mediator of processes associated with exercise adaptation. Further research is needed to evaluate their full relevance. In conclusion, it seems to be too early to provide concrete recommendations on timing of exercise to maximize beneficial effects.
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Affiliation(s)
- Henriette Kirchner
- Institute for Human Genetics, Epigenetics and Metabolism Lab, University of Lübeck, Lübeck, Germany
- German Center for Diabetes Research (DZD), Neuherberg, Germany
| | - Leon Weisner
- Institute of Endocrinology and Diabetes, University of Luebeck, Luebeck, Germany
| | - Britta Wilms
- German Center for Diabetes Research (DZD), Neuherberg, Germany
- Institute of Endocrinology and Diabetes, University of Luebeck, Luebeck, Germany
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Carpenter RS, Samaan MA, Clasey JL, Butterfield TA, Gao F, Hardy PA, Bollinger LM. Association of vastus lateralis diffusion properties with in vivo quadriceps contractile function in premenopausal women. Scand J Med Sci Sports 2023; 33:213-223. [PMID: 36337008 PMCID: PMC9928607 DOI: 10.1111/sms.14266] [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: 03/24/2022] [Revised: 09/10/2022] [Accepted: 10/23/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND Diffusion tensor imaging (DTI) parameters correlate with muscle fiber composition, but it is unclear how these relate to in vivo contractile function. PURPOSE To determine the relationship between DTI parameters of the vastus lateralis (VL) and in vivo knee extensor contractile. METHODS Thirteen healthy, premenopausal women underwent magnetic resonance imaging of the mid-thigh to determine patellar tendon moment arm length and quadriceps cross-sectional area. Fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD), and radial diffusivity (RD) of the VL were determined using diffusion tensor imaging (DTI). Participants underwent an interpolated twitch (ITT) experiment before and after a fatiguing concentric-eccentric isokinetic knee extension (60°·s-1 ). During the ITT, supramaximal electrical stimuli were delivered to elicit twitch responses from the knee extensors before, during, and after a maximal voluntary isometric contraction (MVIC). Knee extensor-specific tension during twitch and MVIC were calculated from isometric torque data. Pearson's correlations were used to determine the relationship between muscle contractile properties and DTI parameters. RESULTS MD and RD were moderately correlated with peak twitch force and rate of force development. FA and AD were moderately inversely related to percent change in MVIC following exercise. CONCLUSION MD and RD are associated with in vivo quadriceps twitch properties but not voluntary strength, which may reflect the mechanical properties of constituent fiber types. FA and AD appear to relate to MVIC strength following fatiguing exercise.
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Affiliation(s)
- Rebekah S Carpenter
- Department of Kinesiology and Health Promotion, University of Kentucky, Lexington, Kentucky, USA
| | - Michael A Samaan
- Department of Kinesiology and Health Promotion, University of Kentucky, Lexington, Kentucky, USA
| | - Jody L Clasey
- Department of Kinesiology and Health Promotion, University of Kentucky, Lexington, Kentucky, USA
- Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, USA
- Body Composition Core Laboratory, University of Kentucky, Lexington, Kentucky, USA
| | - Tim A Butterfield
- Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, USA
- Department of Athletic Training, University of Kentucky, Lexington, Kentucky, USA
| | - Fan Gao
- Department of Kinesiology and Health Promotion, University of Kentucky, Lexington, Kentucky, USA
| | - Peter A Hardy
- Department of Radiology, University of Kentucky, Lexington, Kentucky, USA
- Magnetic Resonance Imaging and Spectroscopy Center, University of Kentucky, Lexington, Kentucky, USA
| | - Lance M Bollinger
- Department of Kinesiology and Health Promotion, University of Kentucky, Lexington, Kentucky, USA
- Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, USA
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van der Velde JHPM, Boone SC, Winters-van Eekelen E, Hesselink MKC, Schrauwen-Hinderling VB, Schrauwen P, Lamb HJ, Rosendaal FR, de Mutsert R. Timing of physical activity in relation to liver fat content and insulin resistance. Diabetologia 2023; 66:461-471. [PMID: 36316401 PMCID: PMC9892088 DOI: 10.1007/s00125-022-05813-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/08/2022] [Indexed: 02/05/2023]
Abstract
AIMS/HYPOTHESIS We hypothesised that the insulin-sensitising effect of physical activity depends on the timing of the activity. Here, we examined cross-sectional associations of breaks in sedentary time and timing of physical activity with liver fat content and insulin resistance in a Dutch cohort. METHODS In 775 participants of the Netherlands Epidemiology of Obesity (NEO) study, we assessed sedentary time, breaks in sedentary time and different intensities of physical activity using activity sensors, and liver fat content by magnetic resonance spectroscopy (n=256). Participants were categorised as being most active in the morning (06:00-12:00 hours), afternoon (12:00-18:00 hours) or evening (18:00-00:00 hours) or as engaging in moderate-to-vigorous-physical activity (MVPA) evenly distributed throughout the day. Most active in a certain time block was defined as spending the majority (%) of total daily MVPA in that block. We examined associations between sedentary time, breaks and timing of MVPA with liver fat content and HOMA-IR using linear regression analyses, adjusted for demographic and lifestyle factors including total body fat. Associations of timing of MVPA were additionally adjusted for total MVPA. RESULTS The participants (42% men) had a mean (SD) age of 56 (4) years and a mean (SD) BMI of 26.2 (4.1) kg/m2. Total sedentary time was not associated with liver fat content or insulin resistance, whereas the amount of breaks in sedentary time was associated with higher liver fat content. Total MVPA (-5%/h [95% CI -10%/h, 0%/h]) and timing of MVPA were associated with reduced insulin resistance but not with liver fat content. Compared with participants who had an even distribution of MVPA throughout the day, insulin resistance was similar (-3% [95% CI -25%, 16%]) in those most active in morning, whereas it was reduced in participants who were most active in the afternoon (-18% [95% CI -33%, -2%]) or evening (-25% [95% CI -49%, -4%]). CONCLUSIONS/INTERPRETATION The number of daily breaks in sedentary time was not associated with lower liver fat content or reduced insulin resistance. Moderate-to-vigorous activity in the afternoon or evening was associated with a reduction of up to 25% in insulin resistance. Further studies should assess whether timing of physical activity is also important for the occurrence of type 2 diabetes.
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Affiliation(s)
| | - Sebastiaan C Boone
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | | | - Matthijs K C Hesselink
- Department of Nutrition and Movement Sciences, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Vera B Schrauwen-Hinderling
- Department of Nutrition and Movement Sciences, Maastricht University Medical Center, Maastricht, the Netherlands
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Patrick Schrauwen
- Department of Nutrition and Movement Sciences, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Hildo J Lamb
- Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Frits R Rosendaal
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
| | - Renée de Mutsert
- Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands
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Relationship of sleep regularity with device-based sedentary behavior time and physical activity time in working adults. Sleep Health 2023; 9:86-92. [PMID: 36456449 DOI: 10.1016/j.sleh.2022.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 09/19/2022] [Accepted: 10/05/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVES This study aimed to investigate the association of sleep regularity with time spent in sedentary behavior (SB) and physical activity (PA) in adults with full-time jobs. METHODS This was a cross-sectional study. Adults aged 21-64 years with full-time jobs were recruited between August 2019 and December 2020 in Taiwan. The time spent in SB/PA was assessed using triaxial accelerometers (Actigraph wGT3x-BT), and PA was further classified into light-intensity physical activity (LPA) and moderate-to-vigorous intensity physical activity (MVPA). Each participant recorded their daily sleep patterns and work hours in a log, which was further used to measure sleep variability and social jet lag. Linear regression was applied to examine the associations of indicators of sleep regularity with SB time and PA time. RESULTS A total of 192 adults (men = 28.13%; mean age = 38.56 ± 8.89 years) were included in this study. After adjusting for potential covariates, greater social jet lag was related to more SB time (unstandardized coefficient [B] = 14.39, P = .005) and less LPA time (B = -0.02, P = .010). No evidence of an association between other indicators of sleep regularity with SB/PA time was found. CONCLUSIONS These results provide evidence for a relationship between sleep regularity and SB/PA time in working adults. Maintaining regular sleep, especially a small social jet lag, was suggested to promote physical activity and avoid a sedentary lifestyle. Future research is recommended to examine work-related influences on the associations and bidirectional relationship between sleep regularity and SB/PA.
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Malek EM, Navalta JW, McGinnis GR. Time of Day and Chronotype-Dependent Synchrony Effects Exercise-Induced Reduction in Migraine Load: A Pilot Cross-Over Randomized Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:ijerph20032083. [PMID: 36767448 PMCID: PMC9915413 DOI: 10.3390/ijerph20032083] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/20/2023] [Accepted: 01/21/2023] [Indexed: 06/01/2023]
Abstract
Migraines are the most common cause of chronic pain. Effective, non-pharmacological strategies to reduce migraine load, like exercise, are needed, but it is unclear how exercise timing and chronotype modulate the effects. We sought to determine the effects of time-of-day of exercise, and synchrony with one's chronotype, on migraine load. We performed a pilot cross-over randomized trial where participants with chronic migraine completed two one-month exercise interventions, consisting of either morning exercise (before 09:00 a.m.) or evening exercise (after 7:00 p.m.) in a randomized repeated measures cross-over design (Clinical Trial #NCT04553445). Synchrony was determined by exercise time and chronotype (i.e., a morning type participant exercising in the morning is 'in-sync,' while an evening type participant exercising in the morning is 'out-of-sync'). Migraine burden, and anthropometric assessment occurred before and after each month of exercise. Data was analyzed using repeated measures ANOVA with significance accepted at p < 0.05. When comparing morning and evening exercise, there was no significant improvements in any migraine-related parameters. However, when comparing in-sync and out-of-sync exercise, we found that migraine burden was only improved following in-sync exercise, while no benefits were seen in out-of-sync exercise. Our data suggests that exercise timing has limited impact, but synchrony with chronotype may be essential to decrease migraine load in chronic migraineurs.
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Back FA, Hino AAF, Bojarski WG, Aurélio JMG, de Castro Moreno CR, Louzada FM. Evening chronotype predicts dropout of physical exercise: a prospective analysis. SPORT SCIENCES FOR HEALTH 2023; 19:309-319. [PMID: 35755009 PMCID: PMC9207164 DOI: 10.1007/s11332-022-00963-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 05/11/2022] [Indexed: 11/24/2022]
Abstract
Purpose Eveningness preference to sleep/wake and perform physical/cognitive activities has been associated with worse health outcomes, when compared to morningness preference. Physical activity is one potential mediator that could explain this relationship; however, most of these evidences come from cross-sectional design studies. Our goal was to assess whether chronotype could predict the risk of dropout of physical exercise programs. Methods We followed 153 newly enrolled volunteers at three different gyms, from both sexes, aged between 18 and 65 years, during 12 weeks. The daily frequency of exercises in the programs was objectively measured (gym's electronic turnstiles). Using questionnaires, we collected data of variables related to demographic characteristics, health, physical activity, sleep, anthropometric and chronobiological parameters (Morningness-Eveningness Questionnaire-MEQ). Two multivariate models were created using Cox regression analysis to test the risk of dropout of physical exercise practice. Both models accounted for age, educational level, civil status, membership plan duration, physical exercise practice frequency during week 1 and chronotype (MEQ score and chronotypes). Results Model 1 results showed that higher MEQ score was associated with a lower chance of quitting the program (HR = 0.98; CI95% 0.95-1.00; p = 0.046). Considering the chronotypes, E-types showed the highest dropout risk compared to that of M-types (HR = 2.22; CI95% 1.09-4.52; p = 0.027). Conclusion Our results suggest that chronotype is another variable to be considered in future studies on promoting PAs in formal environments. Likewise, the practice frequency during week 1 and duration of membership plan also deserve more attention in additional studies.
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Affiliation(s)
- Flávio Augustino Back
- Human Chronobiology Laboratory, Department of Physiology, Federal University of Paraná, Curitiba, Paraná Brazil ,Physiology, Universidade Federal do Parana Setor de Ciencias Biologicas, Av. Cel. Francisco H. dos Santos, s/n, Curitiba, 81531-980 Brazil
| | - Adriano Akira Ferreira Hino
- Health Sciences Graduate Program, School of Medicine, Pontifícal Catholic University of Paraná, Curitiba, Paraná Brazil
| | - Wilynson Gomes Bojarski
- Human Chronobiology Laboratory, Department of Physiology, Federal University of Paraná, Curitiba, Paraná Brazil
| | | | | | - Fernando Mazzilli Louzada
- Human Chronobiology Laboratory, Department of Physiology, Federal University of Paraná, Curitiba, Paraná Brazil
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Carvalhas-Almeida C, Cavadas C, Álvaro AR. The impact of insomnia on frailty and the hallmarks of aging. Aging Clin Exp Res 2023; 35:253-269. [PMID: 36583849 PMCID: PMC9895045 DOI: 10.1007/s40520-022-02310-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 11/21/2022] [Indexed: 12/31/2022]
Abstract
Throughout the course of life, there are age-related changes in sleep. Despite these normal changes, there is a high percentage of older adults that report sleep dissatisfaction with a high pervasiveness of chronic insomnia, the most common sleep disorder worldwide, with its prevalence being expected to continuously increase due to the growing rates of aging and obesity. This can have different adverse health outcomes, especially by promoting both physical and cognitive decline, which ultimately may aggravate frailty in older adults. Moreover, age-related frailty and sleep dysfunction may have a common mechanism related to the hallmarks of cellular aging. Cellular aging was categorized into nine hallmarks, such as DNA damage, telomere attrition and epigenetic changes. In the context of geriatric and chronic insomnia research, this review aims at discussing the current evidence from both animal models and human cohorts addressing the link between chronic insomnia, the hallmarks of aging and their impact on frailty. Moreover, the most recent research about the putative effect of insomnia therapeutic approaches on hallmarks of aging will be also highlighted.
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Affiliation(s)
- Catarina Carvalhas-Almeida
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- Centre for Innovation in Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
- EIT Health Ageing PhD School and Multidisciplinary Institute of Ageing (MIA-Portugal), Coimbra, Portugal
| | - Cláudia Cavadas
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
- Centre for Innovation in Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
- Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal
| | - Ana Rita Álvaro
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.
- Centre for Innovation in Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal.
- Institute for Interdisciplinary Research (IIIUC), University of Coimbra, Coimbra, Portugal.
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30
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Urbanová L, Sebalo Vňuková M, Anders M, Ptáček R, Bušková J. The Updating and Individualizing of Sleep Hygiene Rules for Non-clinical Adult Populations. Prague Med Rep 2023; 124:329-343. [PMID: 38069641 DOI: 10.14712/23362936.2023.26] [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] [Indexed: 12/18/2023] Open
Abstract
Sleep hygiene is essential for the prevention of somatic and mental disorders, including the prevention of sleep disorders. However, it does not typically address individual differences. The aim of this review is threefold: first, to outline the empirical evidence for particular components of sleep hygiene rules; second, to indicate the importance of individualized sleep hygiene application with regard to the varying degree of validity of sleep hygiene rules in the population; third, to highlight a new field of sleep hygiene, namely light hygiene. PubMed and Google Scholar were used to identify studies that were published between 2007 and 2022. A search was conducted for studies related to sleeping rules topics: sleep regularity, regular exercise, alcohol, caffeine, napping, relaxation and meditation, food intake and light exposure. In applying these sleep hygiene principles, it is essential to pay attention to individual variables such as age, genetic predisposition, health status, and substance (caffeine, alcohol) possible dependence.
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Affiliation(s)
- Lucie Urbanová
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic.
| | - Martina Sebalo Vňuková
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Martin Anders
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Radek Ptáček
- Department of Psychiatry, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Jitka Bušková
- Department of Sleep Medicine, National Institute of Mental Health, Klecany, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
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31
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Abstract
Circadian rhythms drive our daily behaviors to coincide with the earth's rotation on an approximate 24-h cycle. The circadian clock mechanism present in nearly every cell is responsible for our circadian rhythms and is comprised of a transcriptional-translational feedback loop in mammals. The central clock resides in the hypothalamus responding to external light cues, whereas peripheral clocks receive signals from the central clock and are also sensitive to cues from feeding and activity. Of the peripheral clocks, the skeletal muscle clock is particularly sensitive to exercise which has shown to be an important time-cue with the ability to influence and adjust the muscle clock phase in response to exercise timing. Since the skeletal muscle clock is also involved in the expression of tissue-specific gene expression-including glucoregulatory genes-this might suggest a role for exercise timing as a therapeutic strategy in metabolic diseases, like type 2 diabetes. Notably, those with type 2 diabetes have accompanied disruptions in their skeletal muscle clock mechanism which may also be related to the increased risk of type 2 diabetes seen among shift workers. Therefore, the direct influence of exercise on the skeletal muscle clock might support the use of exercise timing to provide disease-mitigating effects. Here, we highlight the potential use of time-of-day exercise as a chronotherapeutic tool within circadian medicine to improve the metabolic profile of type 2 diabetes and support long-term glycemic control, potentially working through the skeletal muscle clock and circadian physiology.
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Affiliation(s)
- Ryan A. Martin
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, Florida, USA
- Myology Institute, University of Florida, Gainesville, Florida, USA
| | - Karyn A. Esser
- Department of Physiology and Functional Genomics, University of Florida, Gainesville, Florida, USA
- Myology Institute, University of Florida, Gainesville, Florida, USA
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32
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Brupbacher G, Schneiders A, Schmidt-Trucksäss A, von Känel R, Straus D. Wirkmechanismen körperlicher Aktivität auf den Schlaf bei Patienten mit Depression: Ein Narratives Review. SOMNOLOGIE 2022. [DOI: 10.1007/s11818-022-00389-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
ZusammenfassungInsomnie ist eines der Kardinalsymptome einer unipolaren Depression. Insomnie hat dabei einen negativen Einfluss auf den Krankheitsverlauf, ist eines der häufigsten Residualsymptome und ein Risikofaktor für ein Rezidiv. Im vorliegenden Überblick werden mögliche Wirkmechanismen von körperlichem Training auf den Schlaf bei Patienten mit Depression zusammengefasst. Die vorgestellten Mechanismen beruhen auf Daten aus In-vitro‑, Tier- und Humanstudien, welche die Effekte von Kraft‑, Ausdauer- und Mind-Body-Training untersuchen. Sowohl akutes Training als auch über mehrere Wochen regelmäßig absolviertes Training kann über verschiedene Signalwege positive Effekte auf den Schlaf bei Patienten mit Depression haben. Folgende Mechanismen sind dabei relevant: Zeitgebereffekte, Energiekonservierung, Regeration, Thermoregulation, psychophysiologische Effekte und „tissue–brain crosstalk“. Diese Befunde sind relevant, um die Therapie von nichtorganischen Schlafstörungen im Rahmen einer depressiven Episode besser zu verstehen, weiterzuentwickeln und auf individuelle Patienten anzupassen.
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Lecour S, Du Pré BC, Bøtker HE, Brundel BJJM, Daiber A, Davidson SM, Ferdinandy P, Girao H, Gollmann-Tepeköylü C, Gyöngyösi M, Hausenloy DJ, Madonna R, Marber M, Perrino C, Pesce M, Schulz R, Sluijter JPG, Steffens S, Van Linthout S, Young ME, Van Laake LW. Circadian rhythms in ischaemic heart disease: key aspects for preclinical and translational research: position paper of the ESC working group on cellular biology of the heart. Cardiovasc Res 2022; 118:2566-2581. [PMID: 34505881 DOI: 10.1093/cvr/cvab293] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 06/04/2021] [Accepted: 09/07/2021] [Indexed: 12/11/2022] Open
Abstract
Circadian rhythms are internal regulatory processes controlled by molecular clocks present in essentially every mammalian organ that temporally regulate major physiological functions. In the cardiovascular system, the circadian clock governs heart rate, blood pressure, cardiac metabolism, contractility, and coagulation. Recent experimental and clinical studies highlight the possible importance of circadian rhythms in the pathophysiology, outcome, or treatment success of cardiovascular disease, including ischaemic heart disease. Disturbances in circadian rhythms are associated with increased cardiovascular risk and worsen outcome. Therefore, it is important to consider circadian rhythms as a key research parameter to better understand cardiac physiology/pathology, and to improve the chances of translation and efficacy of cardiac therapies, including those for ischaemic heart disease. The aim of this Position Paper by the European Society of Cardiology Working Group Cellular Biology of the Heart is to highlight key aspects of circadian rhythms to consider for improvement of preclinical and translational studies related to ischaemic heart disease and cardioprotection. Applying these considerations to future studies may increase the potential for better translation of new treatments into successful clinical outcomes.
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Affiliation(s)
- Sandrine Lecour
- Department of Medicine, Hatter Institute for Cardiovascular Research in Africa, University of Cape Town, Cape Town, South Africa
| | - Bastiaan C Du Pré
- Department of Internal Medicine, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Hans Erik Bøtker
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Bianca J J M Brundel
- Department of Physiology, Amsterdam UMC, Vrije Universiteit, Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Andreas Daiber
- Department of Cardiology, Molecular Cardiology, Medical Center of the Johannes Gutenberg University, Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany
| | - Sean M Davidson
- The Hatter Cardiovascular Institute, University College London, London, UK
| | - Peter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary
- Pharmahungary Group, Szeged, Hungary
| | - Henrique Girao
- Faculty of Medicine, Univ Coimbra, Coimbra Institute for Clinical and Biomedical Research (iCBR), Center for Innovative Biomedicine and Biotechnology (CIBB), Clinical Academic Centre of Coimbra (CACC), Coimbra, Portugal
| | | | - Mariann Gyöngyösi
- Department of Cardiology, Medical University of Vienna, Waehringer Guertel 18-20, A-1090, Vienna, Austria
| | - Derek J Hausenloy
- Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore, Singapore
- National Heart Research Institute Singapore, National Heart Centre, Singapore, Singapore
- Yong Loo Lin School of Medicine, National University Singapore, Singapore
- The Hatter Cardiovascular Institute, University College London, London, UK
- Cardiovascular Research Center, College of Medical and Health Sciences, Asia University, Taichung City, Taiwan
| | - Rosalinda Madonna
- Institute of Cardiology, University of Pisa, Pisa, Italy
- Department of Internal Medicine, University of Texas Medical School in Houston, Houston, TX, USA
| | - Michael Marber
- King's College London BHF Centre, The Rayne Institute, St Thomas' Hospital, London, UK
| | - Cinzia Perrino
- Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy
| | - Maurizio Pesce
- Unità di Ingegneria Tissutale Cardiovascolare, Centro Cardiologico Monzino, IRCCS, Milan, Italy
| | - Rainer Schulz
- Institute of Physiology, Justus-Liebig University Giessen, Giessen, Germany
| | - Joost P G Sluijter
- Department of Cardiology, Experimental Cardiology Laboratory, Regenerative Medicine Center, Circulatory Health Laboratory, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Sabine Steffens
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Munich Heart Alliance, Munich, Germany
| | - Sophie Van Linthout
- Berlin Institute of Health Center for Regenerative Therapies & Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Charité, University Medicine Berlin, Berlin 10178, Germany
- German Centre for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Martin E Young
- Division of Cardiovascular Diseases, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Linda W Van Laake
- Cardiology and UMC Utrecht Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, The Netherlands
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Menek MY, Budak M. Effect of exercises according to the circadian rhythm in type 2 diabetes: Parallel-group, single-blind, crossover study. Nutr Metab Cardiovasc Dis 2022; 32:1742-1752. [PMID: 35606229 DOI: 10.1016/j.numecd.2022.04.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 04/15/2022] [Accepted: 04/19/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND AIM To evaluate the effectiveness of structured exercise appropriate the circadian rhythm in terms of blood sample test (BST), functionality and quality of life (QoL) in individuals with type 2 diabetes. METHODS AND RESULTS This was a parallel-group, single-blind, crossover study. Thirty individuals with type 2 diabetes aged 35-65 years were enrolled in the study and allocated into 2 groups as the Morning Chronotype (MC) Group (n = 15) and the Evening Chronotype (EC) Group (n = 15) using Morningness-Eveningness Questionnaire which was used to determine the chronotypes. Participants were evaluated in terms of BST, functionality and QoL at the beginning of the study (T0), at 6 (T1), 12 (T2), and 18 (T3) weeks after the study started. A structured exercise program for 3 days a week over 6 weeks was applied in accordance with the chronotypes (T1-T2) and cross-controlled for the chronotypes (T2-T3). Significant differences were found in favor of the exercise given at the appropriate time for the chronotype in all parameters in both groups within groups (T0-T1-T2-T3) (p < 0.05). In the time∗group interactions, exercise in accordance with the appropriate chronotype in both groups provided the highest statistical improvement in all parameters (p < 0.05). CONCLUSION It was concluded that structured exercise performed at the appropriate time for chronotype improves HbA1c, fasting blood glucose, HDL-LDL cholesterol, triglyceride, total cholesterol, functionality and quality of life in type 2 diabetes. This variation in blood values was observed to reflect the quantitative effects of exercise administered according to the circadian rhythm in individuals with type 2 diabetes. TRIAL REGISTRATION ClinicalTrials.gov (NCT04427488). The protocol of the study was registered at ClinicalTrials.gov (NCT04427488).
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Affiliation(s)
- Merve Yilmaz Menek
- Department of Physiotherapy and Rehabilitation, Faculty of Health Science, Istanbul Medipol University, Istanbul, Turkey.
| | - Miray Budak
- Department of Ergotherapy, Faculty of Health Science, Istanbul Medipol University, Istanbul, Turkey.
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Thomas JM, Black WS, Kern PA, Pendergast JS, Clasey JL. Heart rate recovery as an assessment of cardiorespiratory fitness in young adults. JOURNAL OF CLINICAL EXERCISE PHYSIOLOGY 2022; 11:44-53. [PMID: 36466304 PMCID: PMC9718361 DOI: 10.31189/2165-6193-11.2.44] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
BACKGROUND Cardiorespiratory fitness, typically measured as peak oxygen uptake (VO2peak) during maximal graded exercise testing (GXTmax), is a predictor of morbidity, mortality, and cardiovascular disease. However, measuring VO2peak is costly and inconvenient and thus not widely used in clinical settings. Alternatively, postexercise heart rate recovery (HRRec), which is an index of vagal reactivation, is a valuable assessment of VO2peak in older adults and athletes. However, the validity of HRRec as a clinical indicator of cardiorespiratory fitness in young, sedentary adults, who are a rapidly growing population at risk for developing obesity and cardiovascular disease, has not been fully elucidated. METHODS We investigated the association between cardiorespiratory fitness, measured by VO2peak (mL·kg-1·min-1), and HRRec measures after a GXTmax in 61 young (25.2 ± 6.1 years), sedentary adults (40 females) using 3 methods. We examined the relationship between VO2peak and absolute (b·min-1) and relative (%) HRRec measures at 1, 2, and 3 min post GXTmax, as well as a measure of the slow component HRRec (HRRec 1 min minus HRR 2 min), using Pearson's correlation analysis. RESULTS VO2peak (36.5 ± 7.9 mL·kg-1·min-1) was not significantly correlated with absolute HRRec at 1 min (r = 0.18), 2 min (r = 0.04) or 3 min (r = 0.01). We also found no significant correlations between VO2peak and relative HRRec at 1 min (r = 0.09), 2 min (r = -0.06) or 3 min (r = -0.10). Lastly, we found no correlation between the measure of the slow component HRRec and VO2peak (r = -0.14). CONCLUSIONS Our results indicate that HRRec measures are not a valid indicator of cardiorespiratory fitness in young, sedentary adults.
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Affiliation(s)
- J. Matthew Thomas
- Department of Kinesiology and Health Promotion, University of Kentucky, Lexington, Kentucky, USA
- Center for Clinical and Translational Science, University of Kentucky, Lexington, Kentucky, USA
| | - W. Scott Black
- Department of Kinesiology and Health Promotion, University of Kentucky, Lexington, Kentucky, USA
- Department of Clinical Sciences, University of Kentucky, Lexington, Kentucky, USA
| | - Philip A. Kern
- Center for Clinical and Translational Science, University of Kentucky, Lexington, Kentucky, USA
- The Department of Internal Medicine, Division of Endocrinology, University of Kentucky, Lexington, Kentucky, USA
- Barnstable Brown Diabetes and Obesity Center, University of Kentucky, Lexington, Kentucky, USA
| | - Julie S. Pendergast
- Center for Clinical and Translational Science, University of Kentucky, Lexington, Kentucky, USA
- Barnstable Brown Diabetes and Obesity Center, University of Kentucky, Lexington, Kentucky, USA
- Saha Cardiovascular Center, University of Kentucky, Lexington, Kentucky, USA
- Department of Biology, University of Kentucky, Lexington, Kentucky, USA
| | - Jody L. Clasey
- Department of Kinesiology and Health Promotion, University of Kentucky, Lexington, Kentucky, USA
- Center for Clinical and Translational Science, University of Kentucky, Lexington, Kentucky, USA
- Barnstable Brown Diabetes and Obesity Center, University of Kentucky, Lexington, Kentucky, USA
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Jung S, Son KL, Jung S, Moon JY, Oh GH, Yeom CW, Lee KM, Kim WH, Jung D, Kim TY, Im SA, Lee KH, Spiegel D, Hahm BJ. The longitudinal effects of chronotype on chemotherapy-induced nausea and vomiting in patients with breast cancer receiving neoadjuvant chemotherapy. J Psychosom Res 2022; 157:110804. [PMID: 35381494 DOI: 10.1016/j.jpsychores.2022.110804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 03/21/2022] [Accepted: 03/24/2022] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The object of this longitudinal cohort study was to investigate whether chronotype affects the incidence of chemotherapy-induced nausea and vomiting (CINV) among patients with breast cancer. METHODS The study included a total of 203 breast cancer patients who received neoadjuvant chemotherapy using a regimen of doxorubicin and cyclophosphamide with high emetogenicity. Patients received four cycles of chemotherapy in approximately three months. Patients completed questionnaires including the Munich Chronotype Questionnaire (MCTQ) before the first chemotherapy and the Multinational Association of Supportive Care in Cancer Antiemesis Tool (MAT) after each of the four chemotherapy sessions. To confirm the effect of chronotype on CINV during the four cycles, we performed statistical analyses using a generalized estimating equation (GEE). RESULTS CINV occurred in 108 (53.2%), 112 (55.2%), 102 (50.3%), and 62 (30.5%) patients during four cycles of treatment. In the GEE approach, late and early chronotypes (vs. intermediate chronotype) were associated with an increased risk of CINV (late chronotype: odds ratio [OR], 2.06; 95% confidence interval [CI], 1.41-2.99; p < 0.001, early chronotype: OR, 1.84; CI, 1.25-2.73; p = 0.002), which remained significant even after adjusting for age, BMI, antiemetic treatment, history of nausea and vomiting, anxiety, and sleep quality. CONCLUSION Chronotype affected CINV across the four cycles of neoadjuvant chemotherapy in patients with breast cancer, suggesting the need to consider chronotype in predicting and managing CINV.
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Affiliation(s)
- Sanghyup Jung
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea
| | - Kyung-Lak Son
- Department of Psychiatry, Dongguk University Ilsan Hospital, Goyang, Republic of Korea.
| | - Saim Jung
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jung Yoon Moon
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea
| | - Gyu Han Oh
- Public Health Medical Service, Seoul National University Hospital, Seoul, Republic of Korea
| | - Chan-Woo Yeom
- Department of Psychiatry, Uijeongbu Eulji Medical Center, Eulji University School of Medicine, Uijeongbu-si, Gyeonggi-do, Republic of Korea
| | | | - Won-Hyoung Kim
- Department of Psychiatry, Inha University Hospital, Incheon, Republic of Korea
| | - Dooyoung Jung
- Department of Human Factors Engineering, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Tae-Yong Kim
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea; Cancer Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Seock-Ah Im
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea; Cancer Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Kyung-Hun Lee
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea; Cancer Research Institute, Seoul National University, Seoul, Republic of Korea
| | - David Spiegel
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Bong-Jin Hahm
- Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea; Department of Psychiatry and Behavioral Sciences, Seoul National University College of Medicine, Seoul, Republic of Korea
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Evaluation of environmental, social, and behavioral modulations of the circadian phase of dancers trained in shifts. iScience 2022; 25:104676. [PMID: 35832886 PMCID: PMC9272370 DOI: 10.1016/j.isci.2022.104676] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/23/2022] [Accepted: 06/22/2022] [Indexed: 11/06/2022] Open
Abstract
The interplay of environmental, social, and behavioral factors influencing human circadian phase in ecological conditions remains elusive. The Uruguayan national dance school END-SODRE operating in two shifts (morning: 8:30–12:30 and night: 20:00–24:00) allowed us to evaluate how social demands, chronotype, environmental light, physical activity, and sleep patterns affected individual circadian phase measured by the onset of the nocturnal increase of melatonin (DLMO) in a single study. The DLMO was 1.5 h earlier in morning-shift dancers (n = 7) compared to night-shift dancers (n = 11). Sleep time and chronotype (only in night-shift dancers) were associated with the circadian phase. In training days, during each participant’s phase-advance and phase-delay time windows, light exposure was similar between morning and night-shift dancers and did not correlate with DLMO. In contrast, the time spent in moderate-vigorous physical activity during each participant’s phase-lag time window was higher in night-shift dancers than in morning-shift dancers and positively correlated with DLMO. Circadian phase was earlier in morning than in night dancers in real-life conditions Sleep time (and night-shift chronotypes) correlated with the circadian phase In the phase-advance and phase-lag windows, light was not associated with DLMO In the phase-lag time window, the longer the intense exercise the later the phase
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Spano L, Hennion V, Marie-Claire C, Bellivier F, Scott J, Etain B. Associations between circadian misalignment and telomere length in BD: an actigraphy study. Int J Bipolar Disord 2022; 10:14. [PMID: 35619042 PMCID: PMC9135941 DOI: 10.1186/s40345-022-00260-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/25/2022] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Life expectancy is significantly decreased in bipolar disorder (BD). This is associated with accelerated cellular aging which can be estimated by telomere length (TL). However, specific determinants of shorter TL in BD are under-explored. This study examines whether circadian misalignment (i.e. mismatch between preferred and actual phase of circadian activity rhythms) is associated with shorter TL in BD. METHODS Euthymic individuals with BD (n = 101) undertook 21 consecutive days of actigraphy recording and completed the Composite Scale of Morningness (CSM) to assess phase preference for activities (chronotype). Polymerase chain reaction was used to measure TL in blood. Cluster analysis identified circadian aligned/misaligned subgroups as defined by preferred (CSM score) and actual phases of activity (actigraphically determined onset of active and inactive periods). We tested for any associations between TL and clusters, with adjustments for between-cluster differences in socio-demographic and illness factors. RESULTS We identified three clusters: an "Aligned Morning" cluster (n = 31) with preferred and actual timing of activity in the morning, an "Aligned Evening" cluster (n = 37) with preferred and actual timing of activity in the evening and a "Misaligned" cluster (n = 32) with an evening chronotype, but an earlier objective onset of active periods. After adjustment for confounders, we found that TL was significantly associated with circadian misalignment and older age. CONCLUSIONS Circadian misalignment may partly explain shorter TL in BD and could contribute to accelerated aging in these individuals.
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Affiliation(s)
- Luana Spano
- INSERM UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie, OTeN, Université de Paris, 75006, Paris, France
| | - Vincent Hennion
- INSERM UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie, OTeN, Université de Paris, 75006, Paris, France.,Université de Paris, Paris, France.,DMU Neurosciences, Département de Psychiatrie Et de Médecine Addictologique, AP-HP.Nord, GH Saint-Louis-Lariboisière-F. Widal, Paris, France
| | - Cynthia Marie-Claire
- INSERM UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie, OTeN, Université de Paris, 75006, Paris, France
| | - Frank Bellivier
- INSERM UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie, OTeN, Université de Paris, 75006, Paris, France.,Université de Paris, Paris, France.,DMU Neurosciences, Département de Psychiatrie Et de Médecine Addictologique, AP-HP.Nord, GH Saint-Louis-Lariboisière-F. Widal, Paris, France
| | - Jan Scott
- Université de Paris, Paris, France.,Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Bruno Etain
- INSERM UMR-S 1144, Optimisation Thérapeutique en Neurospsychopharmacologie, OTeN, Université de Paris, 75006, Paris, France. .,Université de Paris, Paris, France. .,DMU Neurosciences, Département de Psychiatrie Et de Médecine Addictologique, AP-HP.Nord, GH Saint-Louis-Lariboisière-F. Widal, Paris, France. .,Département de Psychiatrie et de Médecine Addictologique, Centre Expert Troubles Bipolaires, Hôpital Fernand Widal, 200, rue du Faubourg Saint Denis, 75010, Paris Cedex, France.
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Chronodisruption and diet associated with increased cardiometabolic risk in coronary heart disease patients: the CORDIOPREV study. Transl Res 2022; 242:79-92. [PMID: 34752950 DOI: 10.1016/j.trsl.2021.11.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 10/29/2021] [Accepted: 11/01/2021] [Indexed: 01/20/2023]
Abstract
Individuals with evening chronotypes are prone to suffer chronodisruption and display worse lifestyle habits than morning-types, exhibiting higher cardiovascular diseases (CVD). However, it is unknown whether CVD patients, who are evening chronotypes, have higher cardiometabolic risk than morning-types. This study explored whether individual chronotypes were associated with cardiometabolic risk in patients from the CORDIOPREV study (n = 857). We also investigated whether potential associations were moderated by long-term consumption of two healthy diets (Mediterranean and Low-fat diets). This population was classified into chronotypes using the Morningness-Eveningness Questionnaire. Seven-day daily rhythms in wrist temperature (T), rest-activity (A) and position (P) were recorded in a subset of patients (n = 168), and an integrative variable TAP was determined. Metabolic Syndrome (MetS) was determined at baseline, and metabolic and inflammation markers were measured at baseline and yearly during the 4 years of follow-up. Differences in several lifestyle factors were analyzed according to chronotype. At all times, evening-types had higher triglycerides, C-reactive protein and homocysteine and lower high density lipoprotein cholesterol than morning-types (P < 0.05). Evening-types had a higher prevalence of MetS (OR 1.58 IC 95% [1.10 - 2.28], P = 0.01). Moreover, they were more sedentary, displayed less and delayed physical activity and ate and slept later. In addition, evening-types had lower amplitude, greater fragmentation, lower robustness and less stable circadian pattern at TAP (P < 0.01), all related to a less healthy circadian pattern. In conclusion, evening-types with CVD had higher cardiometabolic risk and less robust circadian-related rhythms than morning-types, regardless of the nutritional intervention.
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Cheng Q, Lu C, Qian R. The circadian clock regulates metabolic responses to physical exercise. Chronobiol Int 2022; 39:907-917. [PMID: 35282722 DOI: 10.1080/07420528.2022.2050384] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
It has been proposed for years that physical exercise ameliorates metabolic diseases. Optimal exercise timing in humans and mammals has indicated that circadian clocks play a vital role in exercise and body metabolism. Skeletal muscle metabolism exhibits a robust circadian rhythm under the control of the suprachiasmatic nucleus of the hypothalamus. Clock genes also control the development, differentiation, and function of skeletal muscles. In this review, we aimed to clarify the relationship between exercise, skeletal muscles, and the circadian clock. Health benefits can be attained by the scheduling of exercise at the best circadian time. Exercise therapy for metabolic diseases and cardiovascular health is a key adjuvant method. This review highlights the importance of exercise timing in maintaining healthy metabolism and circadian clocks.
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Affiliation(s)
- Qianyun Cheng
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Chao Lu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Ruizhe Qian
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
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Creasy SA, Wayland L, Panter SL, Purcell SA, Rosenberg R, Willis EA, Shiferaw B, Grau L, Breit MJ, Bessesen DH, Melanson EL, Catenacci VA. Effect of Morning and Evening Exercise on Energy Balance: A Pilot Study. Nutrients 2022; 14:816. [PMID: 35215466 PMCID: PMC8877501 DOI: 10.3390/nu14040816] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 02/09/2022] [Accepted: 02/11/2022] [Indexed: 12/14/2022] Open
Abstract
The purpose of this study was to evaluate the feasibility and acceptability of randomizing adults with overweight and obesity (BMI 25-40 kg/m2) to morning (06:00-10:00) or evening (15:00-19:00) aerobic exercise. Participants completed four exercise sessions per week in the morning (AM, n = 18) or evening (PM, n = 15). The exercise program was 15 weeks and progressed from 70 to 80% heart rate maximum and 750-2000 kcal/week. Bodyweight, body composition, total daily energy expenditure (TDEE), energy intake (EI), sleep, sedentary behavior (SB), non-exercise physical activity (NEPA), and maximal aerobic capacity were assessed at baseline and week 15. Study retention was 94% and adherence to the supervised exercise program was ≥90% in both groups. Weight change was -0.9 ± 2.8 kg and -1.4 ± 2.3 kg in AM and PM, respectively. AM and PM increased TDEE (AM: 222 ± 399 kcal/day, PM: 90 ± 150 kcal/day). EI increased in AM (99 ± 198 kcal/day) and decreased in PM (-21 ± 156 kcal/day) across the intervention. It is feasible to randomize adults with overweight and obesity to morning or evening aerobic exercise with high levels of adherence. Future trials are needed to understand how the timing of exercise affects energy balance and body weight regulation.
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Affiliation(s)
- Seth A. Creasy
- Division of Endocrinology, Metabolism, and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (S.L.P.); (S.A.P.); (R.R.); (M.J.B.); (D.H.B.); (E.L.M.); (V.A.C.)
- Anschutz Health and Wellness Center, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA;
| | - Liza Wayland
- Anschutz Health and Wellness Center, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA;
| | - Shelby L. Panter
- Division of Endocrinology, Metabolism, and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (S.L.P.); (S.A.P.); (R.R.); (M.J.B.); (D.H.B.); (E.L.M.); (V.A.C.)
- Anschutz Health and Wellness Center, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA;
| | - Sarah A. Purcell
- Division of Endocrinology, Metabolism, and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (S.L.P.); (S.A.P.); (R.R.); (M.J.B.); (D.H.B.); (E.L.M.); (V.A.C.)
- Anschutz Health and Wellness Center, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA;
| | - Rebecca Rosenberg
- Division of Endocrinology, Metabolism, and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (S.L.P.); (S.A.P.); (R.R.); (M.J.B.); (D.H.B.); (E.L.M.); (V.A.C.)
| | - Erik A. Willis
- Center for Health Promotion Disease Prevention, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599, USA;
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina-Chapel Hill, Chapel Hill, NC 27599, USA
| | - Bethelhem Shiferaw
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (B.S.); (L.G.)
| | - Laura Grau
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (B.S.); (L.G.)
| | - Matthew J. Breit
- Division of Endocrinology, Metabolism, and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (S.L.P.); (S.A.P.); (R.R.); (M.J.B.); (D.H.B.); (E.L.M.); (V.A.C.)
| | - Daniel H. Bessesen
- Division of Endocrinology, Metabolism, and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (S.L.P.); (S.A.P.); (R.R.); (M.J.B.); (D.H.B.); (E.L.M.); (V.A.C.)
- Anschutz Health and Wellness Center, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA;
- Division of Endocrinology, Denver Health Medical Center, Denver, CO 80204, USA
| | - Edward L. Melanson
- Division of Endocrinology, Metabolism, and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (S.L.P.); (S.A.P.); (R.R.); (M.J.B.); (D.H.B.); (E.L.M.); (V.A.C.)
- Eastern Colorado VA Geriatric Research, Education, and Clinical Center, Aurora, CO 80045, USA
- Division of Geriatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Victoria A. Catenacci
- Division of Endocrinology, Metabolism, and Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA; (S.L.P.); (S.A.P.); (R.R.); (M.J.B.); (D.H.B.); (E.L.M.); (V.A.C.)
- Anschutz Health and Wellness Center, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA;
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McClean C, Davison GW. Circadian Clocks, Redox Homeostasis, and Exercise: Time to Connect the Dots? Antioxidants (Basel) 2022; 11:antiox11020256. [PMID: 35204138 PMCID: PMC8868136 DOI: 10.3390/antiox11020256] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/11/2022] [Accepted: 01/18/2022] [Indexed: 12/14/2022] Open
Abstract
Compelling research has documented how the circadian system is essential for the maintenance of several key biological processes including homeostasis, cardiovascular control, and glucose metabolism. Circadian clock disruptions, or losses of rhythmicity, have been implicated in the development of several diseases, premature ageing, and are regarded as health risks. Redox reactions involving reactive oxygen and nitrogen species (RONS) regulate several physiological functions such as cell signalling and the immune response. However, oxidative stress is associated with the pathological effects of RONS, resulting in a loss of cell signalling and damaging modifications to important molecules such as DNA. Direct connections have been established between circadian rhythms and oxidative stress on the basis that disruptions to circadian rhythms can affect redox biology, and vice versa, in a bi-directional relationship. For instance, the expression and activity of several key antioxidant enzymes (SOD, GPx, and CAT) appear to follow circadian patterns. Consequently, the ability to unravel these interactions has opened an exciting area of redox biology. Exercise exerts numerous benefits to health and, as a potent environmental cue, has the capacity to adjust disrupted circadian systems. In fact, the response to a given exercise stimulus may also exhibit circadian variation. At the same time, the relationship between exercise, RONS, and oxidative stress has also been scrutinised, whereby it is clear that exercise-induced RONS can elicit both helpful and potentially harmful health effects that are dependent on the type, intensity, and duration of exercise. To date, it appears that the emerging interface between circadian rhythmicity and oxidative stress/redox metabolism has not been explored in relation to exercise. This review aims to summarise the evidence supporting the conceptual link between the circadian clock, oxidative stress/redox homeostasis, and exercise stimuli. We believe carefully designed investigations of this nexus are required, which could be harnessed to tackle theories concerned with, for example, the existence of an optimal time to exercise to accrue physiological benefits.
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Liu C, Liu Y, Xin Y, Wang Y. Circadian secretion rhythm of GLP-1 and its influencing factors. Front Endocrinol (Lausanne) 2022; 13:991397. [PMID: 36531506 PMCID: PMC9755352 DOI: 10.3389/fendo.2022.991397] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 11/22/2022] [Indexed: 12/04/2022] Open
Abstract
Circadian rhythm is an inherent endogenous biological rhythm in living organisms. However, with the improvement of modern living standards, many factors such as prolonged artificial lighting, sedentarism, short sleep duration, intestinal flora and high-calorie food intake have disturbed circadian rhythm regulation on various metabolic processes, including GLP-1 secretion, which plays an essential role in the development of various metabolic diseases. Herein, we focused on GLP-1 and its circadian rhythm to explore the factors affecting GLP-1 circadian rhythm and its potential mechanisms and propose some feasible suggestions to improve GLP-1 secretion.
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Morgunova GV. NOT JUST CALORIC RESTRICTION: A COMPLEX APPROACH TO PROLONG LIFESPAN AND IMPROVE QUALITY OF LIFE. CENTRAL ASIAN JOURNAL OF MEDICAL HYPOTHESES AND ETHICS 2021. [DOI: 10.47316/cajmhe.2021.2.4.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Aging is an urgent healthcare issue in view of the rapid growth of the proportion of older persons. Searching for reliable aging biomarkers and prolonging lifespan are increasingly important scientific directions. Experimental gerontology helps to explore fundamental facts which are not always applicable in clinical scenarios. As an example, caloric restriction is one of the key interventions that prolongs laboratory animals’ lifespan and ameliorates some, but not all, aging biomarkers in humans. Consequences of overeating such as obesity, insulin resistance, type 2 diabetes, and metabolic syndrome are taking their toll with aging, making caloric restriction a hot topic in gerontology and geriatrics. Nevertheless, caloric restriction is not widely applicable in view of poor adherence to and limitations of strict diets. Drugs mimicking caloric restrictions, the so-called caloric restriction mimetics, are developed to overcome these limitations. Caloric restriction alone is not a panacea since metabolic pathways are complex and not responsive to a single intervention. Fasting and exercising are additional options for reducing effects of excessive intake of calories. Arguably, physical activity significantly improves the quality of life at old age and delays the onset of overt insulin resistance and associated diseases. Thus, developing optimal fasting and exercising schemes is becoming increasingly important. Such interventions are confounded by a number of factors, including circadian and other biorhythms and baseline metabolic activity. It is justifiable to test fasting and exercising in experimental animals to reveal numerous confounding factors. A hypothesis in this article points to the role of complex interventions such as moderate and balanced diet, intermittent fasting, and physical exercise adjusted to circadian rhythms for prolonging life and improving quality of life. The hypothesis may shed light on fundamental mechanisms of aging and perspectives of anti-aging drug therapies.
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Romdhani M, Rae DE, Nédélec M, Ammar A, Chtourou H, Al Horani R, Ben Saad H, Bragazzi N, Dönmez G, Driss T, Fullagar HHK, Farooq A, Garbarino S, Hammouda O, Hassanmirzaei B, Khalladi K, Khemila S, Mataruna-Dos-Santos LJ, Moussa-Chamari I, Mujika I, Muñoz Helú H, Norouzi Fashkhami A, Paineiras-Domingos LL, Rahbari Khaneghah M, Saita Y, Trabelsi K, Vitale JA, Washif JA, Weber J, Souissi N, Taylor L, Chamari K. COVID-19 Lockdowns: A Worldwide Survey of Circadian Rhythms and Sleep Quality in 3911 Athletes from 49 Countries, with Data-Driven Recommendations. Sports Med 2021; 52:1433-1448. [PMID: 34878639 PMCID: PMC8652380 DOI: 10.1007/s40279-021-01601-y] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2021] [Indexed: 11/24/2022]
Abstract
Objective In a convenience sample of athletes, we conducted a survey of COVID-19-mediated lockdown (termed ‘lockdown’ from this point forward) effects on: (i) circadian rhythms; (ii) sleep; (iii) eating; and (iv) training behaviors. Methods In total, 3911 athletes [mean age: 25.1 (range 18–61) years, 1764 female (45%), 2427 team-sport (63%) and 1442 elite (37%) athletes] from 49 countries completed a multilingual cross-sectional survey including the Pittsburgh Sleep Quality Index and Insomnia Severity Index questionnaires, alongside bespoke questions about napping, training, and nutrition behaviors. Results Pittsburgh Sleep Quality Index (4.3 ± 2.4 to 5.8 ± 3.1) and Insomnia Severity Index (4.8 ± 4.7 to 7.2 ± 6.4) scores increased from pre- to during lockdown (p < 0.001). Pittsburgh Sleep Quality Index was predominantly influenced by sleep-onset latency (p < 0.001; + 29.8%), sleep efficiency (p < 0.001; − 21.1%), and total sleep time (p < 0.001; − 20.1%), whilst Insomnia Severity Index was affected by sleep-onset latency (p < 0.001; + 21.4%), bedtime (p < 0.001; + 9.4%), and eating after midnight (p < 0.001; + 9.1%). During lockdown, athletes reported fewer training sessions per week (− 29.1%; d = 0.99). Athletes went to bed (+ 75 min; 5.4%; d = 1.14) and woke up (+ 150 min; 34.5%; d = 1.71) later during lockdown with an increased total sleep time (+ 48 min; 10.6%; d = 0.83). Lockdown-mediated circadian disruption had more deleterious effects on the sleep quality of individual-sport athletes compared with team-sport athletes (p < 0.001; d = 0.41), elite compared with non-elite athletes (p = 0.028; d = 0.44) and older compared with younger (p = 0.008; d = 0.46) athletes. Conclusions These lockdown-induced behavioral changes reduced sleep quality and increased insomnia in athletes. Data-driven and evidence-based recommendations to counter these include, but are not limited to: (i) early outdoor training; (ii) regular meal scheduling (whilst avoiding meals prior to bedtime and caffeine in the evening) with appropriate composition; (iii) regular bedtimes and wake-up times; and (iv) avoidance of long and/or late naps. Supplementary Information The online version contains supplementary material available at 10.1007/s40279-021-01601-y.
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Affiliation(s)
- Mohamed Romdhani
- High Institute of Sport and Physical Education of Sfax, Sfax University, Sfax, Tunisia. .,Physical Activity, Sport and Health, UR18JS01, National Observatory of Sports, BP 143 Olympic City, 1003, Tunis, Tunisia.
| | - Dale E Rae
- Division of Exercise Science and Sports Medicine, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Mathieu Nédélec
- Laboratory Sport, Expertise and Performance (EA 7370), French National Institute of Sport (INSEP), Paris, France
| | - Achraf Ammar
- Institute of Sport Science, Otto-Von-Guericke University, 39106, Magdeburg, Germany.,Department of Training and Movement Science, Institute of Sport Science, Johannes Gutenberg-University Mainz, 55099, Mainz, Germany
| | - Hamdi Chtourou
- High Institute of Sport and Physical Education of Sfax, Sfax University, Sfax, Tunisia.,Physical Activity, Sport and Health, UR18JS01, National Observatory of Sports, BP 143 Olympic City, 1003, Tunis, Tunisia
| | - Ramzi Al Horani
- Department of Exercise Science, Yarmouk University, Irbid, Jordan
| | - Helmi Ben Saad
- Université de Sousse, Hôpital Farhat HACHED, Faculté de Médecine de Sousse, Laboratoire de Recherche (LR12SP09) "Insuffisance Cardiaque", Sousse, Tunisie
| | - Nicola Bragazzi
- Department of Health Sciences, Postgraduate School of Public Health, University of Genoa, Genoa, Italy.,Laboratory for Industrial and Applied Mathematics, Department of Mathematics and Statistics, York University, Toronto, ON, Canada
| | - Gürhan Dönmez
- Department of Sports Medicine, Hacettepe University School of Medicine, Ankara, Turkey
| | - Tarak Driss
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2) UFR STAPS, UPL, Paris Nanterre University, Nanterre, France
| | - Hugh H K Fullagar
- School of Sport, Exercise and Rehabilitation, Faculty of Health, University of Technology Sydney, Sydney, NSW, Australia
| | - Abdulaziz Farooq
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Center of Excellence, Doha, Qatar
| | - Sergio Garbarino
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics and Maternal-Infantile Sciences, University of Genoa, Genoa, Italy.,Post-Graduate School of Occupational Medicine, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Omar Hammouda
- Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2) UFR STAPS, UPL, Paris Nanterre University, Nanterre, France.,Research Laboratory, Molecular Bases of Human Pathology, LR19ES13, Faculty of Medicine, University of Sfax, Sfax, Tunisia
| | - Bahar Hassanmirzaei
- Sports Medicine Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.,Iran Football Medical Assessment and Rehabilitation Center - IFMARC, FIFA Medical Center of Excellence, Tehran, Iran
| | - Karim Khalladi
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Center of Excellence, Doha, Qatar
| | - Syrine Khemila
- Physical Activity, Sport and Health, UR18JS01, National Observatory of Sports, BP 143 Olympic City, 1003, Tunis, Tunisia.,High Institute of Sport and Physical Education, Ksar-Said Manouba University, Manouba, Tunisia
| | - Leonardo Jose Mataruna-Dos-Santos
- Department of Sport Management, Faculty of Management, Canadian University of Dubai, Dubai, United Arab Emirates.,Centre for Trust, Peace and Social Relation, Coventry University, Coventry, UK
| | - Imen Moussa-Chamari
- Physical Education Department, College of Education, Qatar University, Doha, Qatar
| | - Iñigo Mujika
- Department of Physiology, Faculty of Medicine and Nursing, University of the Basque Country, Leioa, Basque Country, Spain.,Exercise Science Laboratory, Faculty of Medicine, School of Kinesiology, Universidad Finis Terrae, Santiago, Chile
| | - Hussein Muñoz Helú
- Department of Economic-Administrative Sciences, Universidad Autónoma de Occidente, Los Mochis, Sinaloa, Mexico
| | | | - Laisa Liane Paineiras-Domingos
- Programa de Pós-Graduação Em Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.,Departamento de Fisioterapia, Instituto de Ciências da Saúde, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | | | - Yoshitomo Saita
- Department of Sports and Regenerative Medicine, Juntendo University, Tokyo, Japan
| | - Khaled Trabelsi
- High Institute of Sport and Physical Education of Sfax, Sfax University, Sfax, Tunisia.,Research Laboratory: Education, Motricity, Sport and Health, EM2S, LR19JS01, University of Sfax, Sfax, Tunisia
| | | | - Jad Adrian Washif
- Sports Performance Division, National Sports Institute of Malaysia, Kuala Lumpur, Malaysia
| | - Johanna Weber
- Neurocognition and Action, Biomechanics, Bielefeld University, Bielefeld, Germany.,Institute for Sports Science, Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Nizar Souissi
- Physical Activity, Sport and Health, UR18JS01, National Observatory of Sports, BP 143 Olympic City, 1003, Tunis, Tunisia.,High Institute of Sport and Physical Education, Ksar-Said Manouba University, Manouba, Tunisia
| | - Lee Taylor
- School of Sport, Exercise and Health Sciences, National Centre for Sport and Exercise Medicine (NCSEM), Loughborough University, Loughborough, UK.,Sport and Exercise Discipline Group, Faculty of Health, University of Technology Sydney (UTS), Sydney, NSW, Australia
| | - Karim Chamari
- Aspetar, Orthopaedic and Sports Medicine Hospital, FIFA Medical Center of Excellence, Doha, Qatar.,High Institute of Sport and Physical Education, Ksar-Said Manouba University, Manouba, Tunisia
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Kahn M, Korhonen T, Leinonen L, Martinmaki K, Kuula L, Pesonen AK, Gradisar M. Is It Time We Stop Discouraging Evening Physical Activity? New Real-World Evidence From 150,000 Nights. Front Public Health 2021; 9:772376. [PMID: 34805080 PMCID: PMC8599432 DOI: 10.3389/fpubh.2021.772376] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 10/11/2021] [Indexed: 11/13/2022] Open
Abstract
Professional and colloquial sleep hygiene guidelines advise against evening physical activity, despite meta-analyses of laboratory studies concluding that evening exercise does not impair sleep. This study is the first to investigate the association between objectively measured evening physical activity and sleep within a real-world big-data sample. A total of 153,154 nights from 12,638 individuals aged 18-60 years (M = 40.1 SD = 10.1; 44.5% female) were analyzed. Nighttime sleep and minutes of physical activity were assessed using Polar wearable devices for 14 consecutive days. Thirty minutes or more of moderate-to-near maximal physical activity during the 3 h before sleep onset were recorded in 12.4% of evenings, and were more frequent on weekdays than weekends (13.3 vs. 10.2% respectively, p < 0.001). Linear mixed modeling revealed that sleep efficiency was not significantly associated with evening physical activity, and that sleep duration was 3.4 min longer on average on nights following evenings in which participants engaged in 30 min or more of moderate-intense physical activity. Effects were found for sleep timing metrics, as evening physical activity was linked with earlier sleep onset and offset times (-13.7 and -9.3 min, respectively). Overall, these effects were greater- but still very small- on weekdays compared to weekends. The present study provides further evidence for the lack of meaningful links between sleep duration or quality and physical activity in the hours preceding sleep. Taken together with recent meta-analytic findings, these findings suggest that changes in public health recommendations are warranted regarding evening physical activity and its relation to sleep.
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Affiliation(s)
- Michal Kahn
- College of Education, Psychology and Social Work, Flinders University, Adelaide, SA, Australia
| | - Topi Korhonen
- Polar Electro Oy, Polar Research Center, Kempele, Finland
| | - Leena Leinonen
- Polar Electro Oy, Polar Research Center, Kempele, Finland
| | | | - Liisa Kuula
- SleepWell Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Anu-Katriina Pesonen
- SleepWell Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Michael Gradisar
- College of Education, Psychology and Social Work, Flinders University, Adelaide, SA, Australia
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Brupbacher G, Zander-Schellenberg T, Straus D, Porschke H, Infanger D, Gerber M, von Känel R, Schmidt-Trucksäss A. The acute effects of aerobic exercise on sleep in patients with unipolar depression: a randomized controlled trial. Sleep 2021; 44:zsab177. [PMID: 34255075 PMCID: PMC8598185 DOI: 10.1093/sleep/zsab177] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 06/07/2021] [Indexed: 01/23/2023] Open
Abstract
STUDY OBJECTIVES Insomnia increases the risk of negative disease trajectory, relapse, and suicide in patients with depression. We aimed at investigating the effects of a single bout of aerobic exercise, performed after 02:00 pm, on the subsequent night's sleep in patients with depression. METHODS The study was designed as a two-arm parallel-group, randomized, outcome assessor-blinded, controlled, superiority trial. Patients between 18 and 65 years of age with a primary diagnosis of unipolar depression were included. The intervention was a single 30-minute bout of moderate aerobic exercise. The control group sat and read for 30 minutes. The primary outcome was sleep efficiency measured by polysomnography. Secondary outcomes were other polysomnographic variables, subjective sleep quality, daytime sleepiness, mood states, and adverse events. RESULTS Ninety-two patients were randomized to the exercise (N = 46) or control group (N = 46). There were no clinically relevant differences at baseline. Intent-to-treat analysis ANCOVA of follow-up sleep efficiency, adjusted for baseline levels and minimization factors, did not detect a significant effect of the allocation (β = -0.93, p = 0.59). There was no evidence for significant differences between both groups in any other objective or subjective sleep outcomes, daytime sleepiness, or adverse events. The intervention had an immediate positive effect on mood states, including depressiveness (β = -0.40, p = 0.003). CONCLUSIONS This is the first trial to study the effects of a single bout of aerobic exercise on sleep in patients with depression to the best of our knowledge. Aerobic exercise had no effect on sleep efficiency but had a strong beneficial effect on mood and did not increase adverse outcomes. These results add to the growing body of evidence that, contrary to sleep hygiene recommendations, exercise after 02:00 pm is not detrimental for sleep. CLINICAL TRIAL REGISTRATION Clinicaltrials.gov, https://clinicaltrials.gov/ct2/show/NCT03673397. Protocol registered on September 17, 2018.
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Affiliation(s)
- Gavin Brupbacher
- Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
- OBERWAID AG, St. Gallen, Switzerland
| | - Thea Zander-Schellenberg
- Division of Clinical Psychology and Epidemiology, Department of Psychology, University of Basel, Basel, Switzerland
| | | | | | - Denis Infanger
- Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Markus Gerber
- Division of Sport and Psychosocial Health, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
| | - Roland von Känel
- Department of Consultation-Liaison Psychiatry and Psychosomatic Medicine, University Hospital Zurich, Zurich, Switzerland
| | - Arno Schmidt-Trucksäss
- Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, Switzerland
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Blankenship JM, Rosenberg RC, Rynders CA, Melanson EL, Catenacci VA, Creasy SA. Examining the Role of Exercise Timing in Weight Management: A Review. Int J Sports Med 2021; 42:967-978. [PMID: 34034354 PMCID: PMC8591839 DOI: 10.1055/a-1485-1293] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Many adults cite exercise as a primary strategy for losing weight, yet exercise alone is modestly effective for weight loss and results in variable weight loss responses. It is possible that some of the variability in weight loss may be explained by the time of day that exercise is performed. Few studies have directly compared the effects of exercise performed at different times of the day (i. e., morning versus evening exercise). Results from these existing studies are mixed with some studies demonstrating superior weight and fat mass loss from morning exercise, while other studies have found that evening exercise may be better for weight management. Exercise timing may alter modifiable lifestyle behaviors involved in weight management, such as non-exercise physical activity, energy intake, and sleep. The purpose of this review is to summarize evidence for and against time-of-day dependent effects of exercise on weight management. Although limited, we also review studies that have examined the effect of exercise timing on other lifestyle behaviors linked to body weight regulation. While exercise at any time of day is beneficial for health, understanding whether there is an optimal time of day to exercise may advance personalized treatment paradigms for weight management.
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Affiliation(s)
- Jennifer M. Blankenship
- Division of Endocrinology, Metabolism, and Diabetes, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO
| | | | - Corey A. Rynders
- Division of Endocrinology, Metabolism, and Diabetes, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Edward L. Melanson
- Division of Endocrinology, Metabolism, and Diabetes, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO
- Department of Geriatrics, VA Eastern Colorado Health Care System, Aurora, CO
| | - Victoria A. Catenacci
- Division of Endocrinology, Metabolism, and Diabetes, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO
- Anschutz Health and Wellness Center, University of Colorado Anschutz Medical Campus, Aurora, CO
| | - Seth A. Creasy
- Division of Endocrinology, Metabolism, and Diabetes, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO
- Anschutz Health and Wellness Center, University of Colorado Anschutz Medical Campus, Aurora, CO
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Abstract
Circadian clocks are biological timing mechanisms that generate 24-h rhythms of physiology and behavior, exemplified by cycles of sleep/wake, hormone release, and metabolism. The adaptive value of clocks is evident when internal body clocks and daily environmental cycles are mismatched, such as in the case of shift work and jet lag or even mistimed eating, all of which are associated with physiological disruption and disease. Studies with animal and human models have also unraveled an important role of functional circadian clocks in modulating cellular and organismal responses to physiological cues (ex., food intake, exercise), pathological insults (e.g. virus and parasite infections), and medical interventions (e.g. medication). With growing knowledge of the molecular and cellular mechanisms underlying circadian physiology and pathophysiology, it is becoming possible to target circadian rhythms for disease prevention and treatment. In this review, we discuss recent advances in circadian research and the potential for therapeutic applications that take patient circadian rhythms into account in treating disease.
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Affiliation(s)
- Yool Lee
- Department of Translational Medicine and Physiology, Elson S. Floyd College of Medicine, Washington State University, Spokane, Washington
| | - Jeffrey M Field
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Amita Sehgal
- Howard Hughes Medical Institute, Chronobiology and Sleep Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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50
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Adamovich Y, Dandavate V, Ezagouri S, Manella G, Zwighaft Z, Sobel J, Kuperman Y, Golik M, Auerbach A, Itkin M, Malitsky S, Asher G. Clock proteins and training modify exercise capacity in a daytime-dependent manner. Proc Natl Acad Sci U S A 2021; 118:e2101115118. [PMID: 34426495 PMCID: PMC8536342 DOI: 10.1073/pnas.2101115118] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Exercise and circadian biology are closely intertwined with physiology and metabolism, yet the functional interaction between circadian clocks and exercise capacity is only partially characterized. Here, we tested different clock mutant mouse models to examine the effect of the circadian clock and clock proteins, namely PERIODs and BMAL1, on exercise capacity. We found that daytime variance in endurance exercise capacity is circadian clock controlled. Unlike wild-type mice, which outperform in the late compared with the early part of their active phase, PERIODs- and BMAL1-null mice do not show daytime variance in exercise capacity. It appears that BMAL1 impairs and PERIODs enhance exercise capacity in a daytime-dependent manner. An analysis of liver and muscle glycogen stores as well as muscle lipid utilization suggested that these daytime effects mostly relate to liver glycogen levels and correspond to the animals' feeding behavior. Furthermore, given that exercise capacity responds to training, we tested the effect of training at different times of the day and found that training in the late compared with the early part of the active phase improves exercise performance. Overall, our findings suggest that clock proteins shape exercise capacity in a daytime-dependent manner through changes in liver glycogen levels, likely due to their effect on animals' feeding behavior.
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Affiliation(s)
- Yaarit Adamovich
- Department of Biomolecular Sciences, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Vaishnavi Dandavate
- Department of Biomolecular Sciences, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Saar Ezagouri
- Department of Biomolecular Sciences, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Gal Manella
- Department of Biomolecular Sciences, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Ziv Zwighaft
- Department of Biomolecular Sciences, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Jonathan Sobel
- Department of Biomolecular Sciences, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Yael Kuperman
- Department of Veterinary Resources, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Marina Golik
- Department of Biomolecular Sciences, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Asher Auerbach
- Department of Chemical Research Support, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Maxim Itkin
- Department of Life Sciences Core Facilities, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Sergey Malitsky
- Department of Life Sciences Core Facilities, Weizmann Institute of Science, 7610001 Rehovot, Israel
| | - Gad Asher
- Department of Biomolecular Sciences, Weizmann Institute of Science, 7610001 Rehovot, Israel;
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