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Dunican IC, Galpin A, Turner M, Reale R. Sleep Behaviors and Nutritional Knowledge in Amateur and Professional Combat Sport Athletes. J Strength Cond Res 2024; 38:1627-1634. [PMID: 38985931 DOI: 10.1519/jsc.0000000000004846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/12/2024]
Abstract
ABSTRACT Dunican, IC, Galpin, A, Turner, M, and Reale, R. Sleep behaviors and nutritional knowledge in amateur and professional combat sport athletes. J Strength Cond Res 38(9): 1627-1634, 2024-Combat sports is a term applied to various competitive contact sports involving 2 competitors engaging in a bout or contest under a specific ruleset. Little is known about combat sports athletes' sleep and nutritional knowledge. This study aimed to assess (a) sleep behaviors, (b) alcohol and shiftwork disorders, and (c) the nutritional knowledge of combat sports athletes. Subjects completed various demographic questions and estimations of their weight management practices and validated surveys, including the Athlete Sleep Behavior Questionnaire, Shiftwork Disorder (SWD) Screening Questionnaire, Alcohol Use Disorders Identification Test, and the Abridged Nutrition for Sports Knowledge Questionnaire. A total of 844 combat sports athletes completed the survey, 79% male, height of 177 ± 10 (cm), and body mass of 79 ± 15 (kg). Subjects were categorized into their specific combat sport type (e.g., boxing or Brazilian jiu-jitsu [BJJ]) and by their level (professional or amateur). Sleep quality was average for all combat sport types and risk prevalence of shiftwork disorder at 11%. Mann-Whitney U tests revealed that amateurs, compared with professional strikers ( p = 0.046, CLES = 0.80), boxers ( p = 0.01, CLES = 0.78), and BJJ ( p = 0.046, CLES = 0.61) athletes, consumed significantly more alcohol. A Friedman test showed significant ( p < 0.001, W = 0.51) differences in weight between time points, with most combat sports athletes reducing weight for competition. An overall nutritional knowledge average of 55% was reported. This study highlights a critical gap in the knowledge and practices of combat sports athletes in relation to sleep behaviors and disorders, alcohol consumption, and nutritional knowledge, emphasizing the need for targeted educational interventions.
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Affiliation(s)
- Ian C Dunican
- Center for Sleep Science, School of Human Sciences, The University of Western Australia, Crawley, Western Australia, Australia
- Melius Consulting, Mount Hawthorn, Western Australia, Australia
| | - Andrew Galpin
- Center for Sport Performance, California State University, Fullerton, Fullerton, California
| | - Mitchell Turner
- Melius Consulting, Mount Hawthorn, Western Australia, Australia
- School of Medical and Health Science, Edith Cowan University, Perth, Western Australia, Australia; and
| | - Reid Reale
- UFC Performance Institute, Shanghai, Performance Nutrition Department, Shanghai, China
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Bu D, Zhang CQ, Liu JD, Han Z, Wang X, Huang Z. Mental health literacy, mental health experiences and help-seeking behaviours of Chinese elite athletes: a qualitative study. Front Public Health 2024; 12:1391597. [PMID: 38813417 PMCID: PMC11133729 DOI: 10.3389/fpubh.2024.1391597] [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: 02/26/2024] [Accepted: 04/15/2024] [Indexed: 05/31/2024] Open
Abstract
Introduction Elite athletes' help-seeking on mental health might be influenced by their mental health literacy (MHL) and mental health experiences. The current study aimed to explore the MHL, experiences and help-seeking behaviours among elite athletes using a qualitative approach. Methods Face-to-face semi-structured interviews were conducted among 20 Chinese elite athletes, 12 coaches, and 5 team officials. Interview data was analyzed using content analysis. Results Seven main themes emerged from the analysis. The current study revealed that Chinese elite athletes suffered from various mental health issues and athletes' MHL levels, help-seeking attitudes and intentions, Chinese sports environments, and Chinese cultural background could impact their help-seeking behaviours. Conclusion Support for Chinese elite athletes' mental health and help-seeking requires improvement.
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Affiliation(s)
- Danran Bu
- School of Physical Education, Hubei University, Wuhan, China
| | - Chun-Qing Zhang
- Department of Psychology, Sun Yat-sen University, Guangzhou, China
| | - Jing-Dong Liu
- Department of Physical Education, Sun Yat-sen University, Guangzhou, China
| | - Zhe Han
- Key Laboratory of General Administration of Sport of China, Hubei Institute of Sport Science, Wuhan, China
| | - Xiang Wang
- The Department of Sport, Physical Education and Health, Faculty of Social Science, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China
| | - Zhijian Huang
- School of Physical Education, Hubei University, Wuhan, China
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Wilson SMB, Jones MI, Draper SB, Parker JK. Early morning sport scheduling is associated with poorer subjective sleep characteristics in British student-athletes. Scand J Med Sci Sports 2024; 34:e14598. [PMID: 38458996 DOI: 10.1111/sms.14598] [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: 07/31/2023] [Revised: 01/24/2024] [Accepted: 02/26/2024] [Indexed: 03/10/2024]
Abstract
This study presents the sleep characteristics of British student-athletes and examines the relationships between sport scheduling and time demands on sleep outcomes. Student-athletes (n = 157, 51% male) completed the Pittsburgh Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), and the Sleep Hygiene Index (SHI). Self-reported sleep characteristics on weekdays and weekends, weekly frequencies of early morning and late evening sport sessions, and academic-related and sport-related time demands were also collected. Questionnaires revealed a high prevalence of undesired sleep characteristics including poor sleep quality (global PSQI >5 in 49.0%) and low sleep durations on weekdays (25% reporting <7 h). Paired t-tests revealed significant differences in bedtime, waketime, sleep duration, and sleep onset latency between weekdays and weekends (all p < 0.01). Hierarchical regression analyses indicated that early morning sport frequency was a significant predictor of PSQI (β = 0.30) and SHI (β = 0.24) global scores, weekday waketimes (β = -0.17), and weekday sleep durations (β = -0.25; all p < 0.05) in models adjusted for participant characteristics. Late evening sport frequency, and academic-related and sport-related time demands, were not significant predictors of any sleep outcome. Adjusting sport scheduling to avoid early start times could provide a means to improve sleep outcomes and may improve sporting performance and academic attainment.
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Affiliation(s)
| | - Martin I Jones
- Department of Sport, Hartpury University, Gloucestershire, UK
| | | | - John K Parker
- Department of Sport, Hartpury University, Gloucestershire, UK
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Coyne P, Woodruff SJ. Taking a Break: The Effects of Partaking in a Two-Week Social Media Digital Detox on Problematic Smartphone and Social Media Use, and Other Health-Related Outcomes among Young Adults. Behav Sci (Basel) 2023; 13:1004. [PMID: 38131860 PMCID: PMC10740995 DOI: 10.3390/bs13121004] [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: 10/25/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 12/23/2023] Open
Abstract
Despite their increasing popularity, especially among young adults, there is a dearth of research examining the effectiveness of digital detoxes focused on restricting or limiting social media use. As such, the purpose of this exploratory study was to create and carry out a social media digital detox among young adults and evaluate its effectiveness with regards to smartphone and social media addiction, as well as several health-related outcomes. Additionally, the study also sought to obtain an understanding of participants' experiences and perceptions regarding the digital detox via semi-structured exit interviews in order to improve and maximize the effectiveness of future social media digital detox interventions. Thirty-one young adults completed a two-week social media digital detox (preceded by a two-week baseline period and followed up by a two-week follow-up period), whereby their social media use was limited to 30 min per day. A series of one-way repeated measures analyses of variance revealed that a two-week social media detox improved smartphone and social media addiction, as well as sleep, satisfaction with life, stress, perceived wellness, and supportive relationships. Thematic analysis of exit interviews also revealed eight themes: feelings, effort to detox, adjustment period, the Goldilocks effect, screen to screen, post-detox binge, progress not perfection, and words of wisdom, all of which provide contextualization of the quantitative findings and valuable insights for future detoxes. In conclusion, the findings of this exploratory study provide initial support for the use of social media digital detoxes, suggesting that limiting usage can have beneficial effects with regards to smartphone and social media addiction, as well as many other health-related outcomes.
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Affiliation(s)
- Paige Coyne
- Department of Public Health Sciences, Henry Ford Health, Detroit, MI 48202, USA
| | - Sarah J. Woodruff
- Department of Kinesiology, University of Windsor, Windsor, ON N9B 3P4, Canada;
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Cunha LA, Costa JA, Marques EA, Brito J, Lastella M, Figueiredo P. The Impact of Sleep Interventions on Athletic Performance: A Systematic Review. SPORTS MEDICINE - OPEN 2023; 9:58. [PMID: 37462808 DOI: 10.1186/s40798-023-00599-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 06/18/2023] [Indexed: 07/21/2023]
Abstract
BACKGROUND Sleep is essential for maximal performance in the athletic population. Despite that, the sport context has many factors that can negatively influence athletes' sleep and subsequent recovery. OBJECTIVES The purpose of this systematic review was to synthesize the most recent literature regarding sleep interventions aimed at improving sleep and subsequent performance in athletes. METHODS The present systematic review was conducted based on the PRISMA guidelines and the PICOS approach. The search was conducted in May 2022 using the electronic database PubMed, SPORTDiscus via EBSCOhost, and Web of Science. Once extracted, studies were included if they met the following criteria: (1) participants were athletes of individual or team sports; (2) implemented an intervention aimed at improving sleep; (3) measured at least one objective performance/recovery outcome; and (4) reported the relationship between sleep and performance. RESULTS The search returned 1584 records. Following the screening, a total of 25 studies met our inclusion criteria. All the included articles were intervention studies published between 2011 and 2021. The included studies implemented various sleep interventions, such as sleep hygiene, naps, sleep extension, light manipulation, cold water immersion, mindfulness, or a combination of two or more strategies. Sleep extension and naps were the most representative and most effective strategies to improve sleep and performance. Mindfulness and light manipulation demonstrated promising results, but more studies are needed to confirm these findings. Sleep hygiene, removing electronic devices at night, and cold water immersion had no effects on sleep and subsequent performance/recovery, but these results are based on a few studies only. CONCLUSION While acknowledging the limited amount of high-quality evidence reviewed, it appears that increasing sleep duration at night or through napping was the most effective interventions to improve physical and/or cognitive performance. Protocol Registration This protocol was registered in the International Platform of Registered Systematic Review and Meta-Analysis Protocols (INPLASY) on May 11, 2022, with the registration number INPLASY202250069.
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Affiliation(s)
- Lúcio A Cunha
- Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, University of Maia, Maia, Portugal
| | - Júlio A Costa
- Portugal Football School, Portuguese Football Federation, Cruz Quebrada, Portugal
| | - Elisa A Marques
- Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, University of Maia, Maia, Portugal
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - João Brito
- Portugal Football School, Portuguese Football Federation, Cruz Quebrada, Portugal
| | - Michele Lastella
- Appleton Institute for Behavioural Science, Central Queensland University, Adelaide, Australia
| | - Pedro Figueiredo
- Physical Education Department, College of Education, United Arab Emirates University, Al Ain, Abu Dhabi, UAE.
- Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, Vila Real, Portugal.
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Monma T, Matsui T, Inoue K, Masuchi K, Okada T, Tamura M, Ishii T, Satoh M, Tokuyama K, Takeda F. Prevalence and risk factors of poor subjective sleep quality in elite judo athletes. Sleep Biol Rhythms 2023; 21:289-297. [PMID: 38469080 PMCID: PMC10899990 DOI: 10.1007/s41105-023-00444-6] [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: 04/19/2022] [Accepted: 01/08/2023] [Indexed: 01/14/2023]
Abstract
This study aimed to determine the prevalence and risk factors of poor subjective sleep quality in elite judo athletes. A subjective cross-sectional questionnaire survey was conducted with 106 elite judo athletes who participated in the training camp of the Japanese national team. Eighty-six respondents (men: 52.3%; average age: 22.9 ± 3.1 years) with complete responses were included in the analysis (valid response rate: 81.1%). Subjective sleep quality was assessed using the Pittsburgh Sleep Quality Index (PSQI). The prevalence of poor sleep quality (PSQI score ≥ 5.5), the mean PSQI score, and subscale scores were investigated. Relationships between poor sleep quality and attributes, lifestyle habits, competition-based activities, and psychological distress were explored using Fisher's exact tests and multivariate logistic regression analysis. Thirty-five respondents (40.7%) reported poor sleep quality. The percentage and subscale scores of the respondents for sleep latency, sleep duration, and daytime dysfunction were higher than those of the population of Japanese national-level athletes. The mean PSQI score of the respondents was similar to that of some elite athlete populations but higher than those of others. Multivariate logistic regression analysis revealed that psychological distress was associated with poor sleep quality. In conclusion, the prevalence of poor subjective sleep quality in elite judo athletes was suggested to be similar or higher among elite athlete population. Sleep latency, sleep duration, and daytime dysfunction status were worse in elite judo athletes than in Japanese national-level athletes. Psychological distress was a risk factor for poor subjective sleep quality in elite judo athletes. Supplementary Information The online version contains supplementary material available at 10.1007/s41105-023-00444-6.
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Affiliation(s)
- Takafumi Monma
- Faculty of Health and Sport Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba-Shi, Ibaraki 305-8577 Japan
| | - Takashi Matsui
- Faculty of Health and Sport Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba-Shi, Ibaraki 305-8577 Japan
- All Japan Judo Federation, 1-16-30 Kasuga, Bunkyo-Ku, Tokyo, 112-0003 Japan
| | - Kosei Inoue
- All Japan Judo Federation, 1-16-30 Kasuga, Bunkyo-Ku, Tokyo, 112-0003 Japan
- Department of Physical Education, Tokai University, 4-1-1 Kitakaname, Hiratsuka-Shi, Kanagawa 259-1292 Japan
| | - Katsuyuki Masuchi
- Faculty of Health and Sport Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba-Shi, Ibaraki 305-8577 Japan
- All Japan Judo Federation, 1-16-30 Kasuga, Bunkyo-Ku, Tokyo, 112-0003 Japan
| | - Takashi Okada
- All Japan Judo Federation, 1-16-30 Kasuga, Bunkyo-Ku, Tokyo, 112-0003 Japan
- Faculty of Sport Science, Nippon Sport Science University, 7-1-1 Fukasawa, Setagaya-Ku, Tokyo, 158-8508 Japan
| | - Masahiro Tamura
- All Japan Judo Federation, 1-16-30 Kasuga, Bunkyo-Ku, Tokyo, 112-0003 Japan
- Center for Fundamental Education, Teikyo University of Science, 2-2-1 Senjusakuragi, Adachi-Ku, Tokyo, 120-0045 Japan
| | - Takanori Ishii
- All Japan Judo Federation, 1-16-30 Kasuga, Bunkyo-Ku, Tokyo, 112-0003 Japan
- Center of Liberal Arts Education, Ryotokuji University, 5-8-1 Akemi, Urayasu-Shi, Chiba 279-8567 Japan
| | - Makoto Satoh
- Moriya Snore and Apnea Center, 980-1, Tatezawa, Moriya-Shi, Ibaraki 302-0118 Japan
| | - Kumpei Tokuyama
- International Institute for Integrative Sleep Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba-Shi, Ibaraki 305-8575 Japan
| | - Fumi Takeda
- Faculty of Health and Sport Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba-Shi, Ibaraki 305-8577 Japan
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Meyerson WU, Fineberg SK, Andrade FC, Corlett P, Gerstein MB, Hoyle RH. The association between evening social media use and delayed sleep may be causal: Suggestive evidence from 120 million Reddit timestamps. Sleep Med 2023; 107:212-218. [PMID: 37235891 DOI: 10.1016/j.sleep.2023.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 03/29/2023] [Accepted: 04/18/2023] [Indexed: 05/28/2023]
Abstract
Public health officials and clinicians routinely advise social media users to avoid nighttime social media use due to the perception that this delays the onset of sleep and predisposes to the health risks of insufficient sleep. With some exceptions, the evidence behind this advice mostly derives from surveys identifying an association between self-reported social media usage and self-reported sleep patterns. In principle, these associations could alternatively be explained by users turning to social media to pass the time when they are otherwise having difficulty sleeping, or by individual differences that draw some people to frequent social media use, or by offline activities that overlap with both social media use and delayed sleep. To attempt to distinguish among these explanations, we leveraged estimated bedtimes from 44,000 Reddit users reported in a recent study and their 120 million posts to test whether the relationship between sleep and social media has properties suggestive of a causal relationship. We find that users are especially likely to be active on Reddit after their bedtime (and therefore awake) on nights that they posted to Reddit shortly before bedtime, especially if they posted multiple times or in high-engagement forums that night. Overall, this study lends additional support to the notion that there likely is some causal effect of evening social media use on delayed sleep onset.
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Affiliation(s)
- William U Meyerson
- Department of Psychiatry & Behavioral Sciences, Duke University School of Medicine, Durham, NC, USA; Department of Molecular Biochemistry & Biophysics, Yale University, New Haven, CT, USA; Program in Computational Biology & Bioinformatics, Yale University, New Haven, CT, USA.
| | | | - Fernanda C Andrade
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Philip Corlett
- Department of Psychiatry, Yale University, New Haven, CT, USA; Wu Tsai Institute, Yale University, New Haven, CT, USA
| | - Mark B Gerstein
- Department of Molecular Biochemistry & Biophysics, Yale University, New Haven, CT, USA; Program in Computational Biology & Bioinformatics, Yale University, New Haven, CT, USA; Department of Computer Science, Yale University, New Haven, CT, USA; Department of Statistics & Data Science, Yale University, New Haven, CT, USA
| | - Rick H Hoyle
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
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Doherty R, Madigan S, Nevill A, Warrington G, Ellis JG. The Impact of Kiwifruit Consumption on the Sleep and Recovery of Elite Athletes. Nutrients 2023; 15:nu15102274. [PMID: 37242157 DOI: 10.3390/nu15102274] [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: 04/16/2023] [Revised: 05/07/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Poor sleep and resultant under-recovery can negatively impact training adaptations, increase the risk of injury and reduce subsequent performance. Due to the 'food first' approach adopted by many athletes, there is scope for investigation of 'functional food' based interventions (i.e., kiwifruit contains melatonin which plays a role in circadian rhythm regulation) designed to promote athlete recovery and/or enhance sleep quality and quantity. METHODS Following the baseline assessment (Week 1) all subjects began the intervention (Weeks 2-5). During the 4-week intervention, participants were asked to consume 2 medium-sized green kiwifruit (Actinidia Deliciosa) an hour before bed. Participants completed a questionnaire battery at baseline and post-intervention, and a daily sleep dairy for the duration of the study. RESULTS The results demonstrated a positive impact of kiwifruit consumption on key aspects of sleep and recovery in elite athletes. From baseline to post-intervention, there were clinically significant improvements in sleep quality (i.e., improved PSQI global scores and sleep quality component scores) and improvements in recovery stress balance (reduced general stress and sports stress scales). Moreover, the intervention improved sleep as evidenced by significant increases in total sleep time and sleep efficiency % and significant reductions in number of awakenings and wake after sleep onset. CONCLUSION The findings broadly suggested that kiwifruit does impact positively on sleep and recovery in elite athletes.
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Affiliation(s)
- Rónán Doherty
- Sports Lab North West, Atlantic Technological University Donegal, Letterkenny Campus, Port Road, F92 FC93 Letterkenny, Ireland
- Sport Ireland Institute, National Sport Campus, Abbotstown, D15 PNON Dublin, Ireland
- Northumbria Centre for Sleep Research, Northumbria University, Newcastle NE7 7XA, UK
| | - Sharon Madigan
- Sport Ireland Institute, National Sport Campus, Abbotstown, D15 PNON Dublin, Ireland
- Sport and Human Performance Research Centre, University of Limerick, V94 T9PX Limerick, Ireland
- Department of Physical Education and Sport Sciences, University of Limerick, V94 T9PX Limerick, Ireland
| | - Alan Nevill
- Faculty of Education, Health and Wellbeing, University of Wolverhampton, Walsall Campus, Walsall WV1 1LY, UK
| | - Giles Warrington
- Sport and Human Performance Research Centre, University of Limerick, V94 T9PX Limerick, Ireland
- Department of Physical Education and Sport Sciences, University of Limerick, V94 T9PX Limerick, Ireland
| | - Jason Gordon Ellis
- Northumbria Centre for Sleep Research, Northumbria University, Newcastle NE7 7XA, UK
- Sport and Human Performance Research Centre, University of Limerick, V94 T9PX Limerick, Ireland
- Department of Physical Education and Sport Sciences, University of Limerick, V94 T9PX Limerick, Ireland
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Osborne JO, Minett GM, Stewart IB, Trost S, Drovandi C, Costello JT, Pavey TG, Borg DN. Evidence that heat acclimation training may alter sleep and incidental activity. Eur J Sport Sci 2022:1-10. [PMID: 36106465 DOI: 10.1080/17461391.2022.2124386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This randomized cross-over study tested the hypothesis that heat acclimation training would detrimentally affect sleep variables and alter incidental physical activity compared to a thermoneutral training control condition. Eight recreationally trained males (V̇O2peak 49±4.9 mL.kg-1.min-1) completed two separate interventions separated by at least 31 days: 5 consecutive day training blocks of moderate-intensity cycling (60 min·day-1 at 50% peak power output) in a hot (34.9±0.7 °C and 53±4 % relative humidity) and a temperate (22.2±2.6 °C; 65±8 % relative humidity) environment. Wrist-mounted accelerometers were worn continuously for the length of the training blocks and recorded physical activity, sleep quality and quantity. Data were analysed in a Bayesian framework, with the results presented as the posterior probability that a coefficient was greater or less than zero. Compared to the temperate training environment, heat acclimation impaired sleep efficiency (Pr β<0 = .979) and wake on sleep onset (Pr β>0 = .917). Daily sedentary time was, on average, 35 min longer (Pr β>0 = .973) and light physical activity time 18 min shorter (Pr β>0 = .960) during the heat acclimation period. No differences were observed between conditions in sleep duration, subjective sleep quality, or moderate or vigorous physical activity. These findings may suggest that athletes and coaches need to be cognisant that heat acclimation training may alter sleep quality and increase sedentary behaviour.HighlightsFive consecutive days of heat training negatively affected some objective measures of sleep quality and incidental physical activity in recreationally trained athletes.Athletes and coaches need to be aware of the potential unintended consequences of using heat acclimation on sleep behaviours.
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Affiliation(s)
- John O Osborne
- School of Sport Sciences, UiT The Arctic University of Norway, Tromsø, Norway
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
| | - Geoffrey M Minett
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
| | - Ian B Stewart
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
| | - Stewart Trost
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
- School of Human Movement and Nutrition Sciences, University of Queensland, Brisbane, Australia
| | - Christopher Drovandi
- School of Mathematical Sciences, Queensland University of Technology, Brisbane, Australia
- Centre for Data Science, Queensland University of Technology, Brisbane, Australia
| | - Joseph T Costello
- Extreme Environments Laboratory, School of Sport, Health and Exercise Science, University of Portsmouth, Portsmouth, United Kingdom
| | - Toby G Pavey
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
| | - David N Borg
- Australian Centre for Health Services Innovation and Centre for Healthcare Transformation, School of Public Health and Social Work, Queensland University of Technology, Brisbane, Australia
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McCarter SJ, Hagen PT, St Louis EK, Rieck TM, Haider CR, Holmes DR, Morgenthaler TI. Physiological markers of sleep quality: A scoping review. Sleep Med Rev 2022; 64:101657. [PMID: 35753151 DOI: 10.1016/j.smrv.2022.101657] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 05/16/2022] [Accepted: 05/29/2022] [Indexed: 10/18/2022]
Abstract
Understanding the associations between adequate sleep, performance and health outcomes is vital, yet a major limitation in the design and interpretation of studies of sleep and performance is the variability of subjective and objective markers used to assess sleep quality. The aim of this scoping review is to investigate how various physiological signals recorded during sleep or wakefulness relate to objective measures of cognitive or physical performance and subjectively perceived sleep quality to inform conceptual understanding of the elusive, amorphous, and multi-dimensional construct of sleep quality. We also aimed to suggest priorities for future areas of research in sleep quality and performance. We searched six databases ultimately yielding 439 studies after duplicate removal. Sixty-five studies were selected for full review. In general, correlations between objectively measured sleep and objective performance or subjectively assessed sleep quality were weak to moderate. Slow wave sleep was moderately correlated with better performance on tasks of vigilance, motor speed, and executive function as well as better subjective sleep quality and feeling well-rested, suggesting that slow wave sleep may be important for sleep quality and optimal daytime performance. However, these findings were inconsistent across studies. Increased sleep fragmentation was associated with poorer subjective sleep quality in both polysomnographic and actigraphic studies. Studies which simultaneously assessed physiologic sleep measures, performance measures and subjective sleep perception were few, limiting the ability to evaluate correlations between subjective and objective outcomes concurrently in the same individuals. Factors influencing the relationship between sleep quality and performance include circadian variability, sleep inertia, and mismatch between sleep stages studied and outcome measures of choice. Ultimately, the determination of "quality sleep" remains largely subjective and inconsistently quantifiable by current measures. Methods evaluating sleep as a continuous measure rather than traditional sleep stages may provide an intriguing approach to future studies of sleep and performance. Future well-designed studies using novel measures of sleep or multimodal ambulatory wearables assessing the three domains of sleep and performance (objective sleep physiology, objective performance, and subjective sleep quality) are needed to better define quality sleep.
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Affiliation(s)
- Stuart J McCarter
- Center for Sleep Medicine, Mayo Clinic and Foundation, Rochester, MN, USA; Department of Neurology, Mayo Clinic and Foundation, Rochester, MN, USA.
| | - Philip T Hagen
- Department of Internal Medicine, Mayo Clinic and Foundation, Rochester, MN, USA
| | - Erik K St Louis
- Center for Sleep Medicine, Mayo Clinic and Foundation, Rochester, MN, USA; Department of Neurology, Mayo Clinic and Foundation, Rochester, MN, USA; Department of Internal Medicine, Mayo Clinic and Foundation, Rochester, MN, USA
| | - Thomas M Rieck
- Mayo Clinic Healthy Living Program, Mayo Clinic and Foundation, Rochester, MN, USA
| | - Clifton R Haider
- Section of Biostatistics, Mayo Clinic and Foundation, Rochester, MN, USA
| | - David R Holmes
- Section of Biostatistics, Mayo Clinic and Foundation, Rochester, MN, USA
| | - Timothy I Morgenthaler
- Center for Sleep Medicine, Mayo Clinic and Foundation, Rochester, MN, USA; Department of Internal Medicine, Mayo Clinic and Foundation, Rochester, MN, USA; Department of Pulmonology, Mayo Clinic and Foundation, Rochester, MN, USA
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11
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Charest J, Grandner MA. Sleep and Athletic Performance: Impacts on Physical Performance, Mental Performance, Injury Risk and Recovery, and Mental Health: An Update. Sleep Med Clin 2022; 17:263-282. [PMID: 35659079 DOI: 10.1016/j.jsmc.2022.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Sleep health is an important consideration for athletic performance. Athletes are at high risk of insufficient sleep duration, poor sleep quality, daytime sleepiness and fatigue, suboptimal sleep schedules, irregular sleep schedules, and sleep and circadian disorders. These issues likely have an impact on athletic performance via several domains. Sleep loss and/or poor sleep quality can impair muscular strength, speed, and other aspects of physical performance. Sleep issues can also increase risk of concussions and other injuries and impair recovery after injury. Cognitive performance is also impacted in several domains, including vigilance, learning and memory, decision making, and creativity.
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Affiliation(s)
- Jonathan Charest
- Department of Psychology, Universite Laval, Quebec City, Quebec, Canada; Centre for Sleep and Human Performance, #106, 51 Sunpark Drive Southeast, Calgary, Alberta T2X 3V4, Canada; Department of Kinesiology, University of Calgary, Calgary, Alberta, Canada
| | - Michael A Grandner
- Department of Psychiatry, University of Arizona, 1501 North Campbell Avenue, PO Box 245002, Tucson, AZ 8524-5002, USA.
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12
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Blach W, Smolders P, Simenko J, Mackala K. Diagnostics of tissue involved injury occurrence of top-level judokas during the competition: suggestion for prevention. PeerJ 2022; 10:e13074. [PMID: 35402103 PMCID: PMC8988935 DOI: 10.7717/peerj.13074] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 02/15/2022] [Indexed: 01/12/2023] Open
Abstract
Background Judo, as a high-intensity contact sport, may lead to the occurrence of injuries, especially in competitions. This work aims to assess the likelihood of soft and hard tissue injuries in top-level judokas during competition with defining factors that determine the probability of injury occurrence. Methods The injuries that occurred in 123 official international competitions from 2005-2019 were recorded by the European Judo Union (EJU) Medical Commission as a survey that was a part of the EJU Injury Registration form with internal consistency shown by a Crombach Alpha of 0.69. This survey data identified factors such as: sex, anatomical localisation of injury, type of injury, tissue involved and mechanisms of the injury. A total of 650 tissue injuries were reported correctly in terms of tissue injury definition. Results The most frequent soft tissue injury (STI) reported was a ligament STI (48.15%), closely followed by skin STI (12.15%) and muscles STI (11.38%). In turn, the most frequent hard tissue injury occurred in bones (8.56%). The highest rates of injuries occurred during the fight in the standing position (78%). Injuries in the standing position mainly occurred while executing a throw (25.85%) and followed by the attempt to throw, i.e., the action of reaching the throwing position (22.30%), grip fighting (15.07%), and during falls (14.77%). Opposite to this, fight in groundwork reached only 18.30% soft and hard tissue injuries combined. The ongoing registration of injuries during judo combat and training and the early diagnosis of risk factors for injuries are the basis for the development of effective strategies for injury prevention and further treatment.
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Affiliation(s)
- Wieslaw Blach
- Faculty of Physical Education and Sport, University School of Physical Education in Wroclaw, Wroclaw, Polska,European Judo Union, Austria, Vienna, Austria
| | | | - Jozef Simenko
- Essex Pathways Department, University of Essex, Colchester, United Kingdom
| | - Krzysztof Mackala
- Department of Track and Field, Faculty of Physical Education and Sport, University School of Physical Education in Wroclaw, Wroclaw, Polska
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13
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COVID19 Pandemic and Physical Activity: An Observational Study on Sleep Quality and Anxiety. Sports (Basel) 2022; 10:sports10030044. [PMID: 35324653 PMCID: PMC8948688 DOI: 10.3390/sports10030044] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/07/2022] [Accepted: 03/11/2022] [Indexed: 02/01/2023] Open
Abstract
Mental alterations were described during the COVID-19 pandemic and sleep deprivation has been reported as a consequence of social isolation. In Italy, the COVID-19 pandemic spread out at the beginning of 2020 determining severe lockdown periods. The aim of our study was to observe the effects of lockdown on sleep and anxiety in trained non-professional subjects and professional athletes who continued to train during the lockdown period. Forty-six subjects (21 trained non-professional subjects and 25 professional athletes) were recruited from a variety of team and individual sports to complete a battery of previously validated and widely used questionnaires assessing psychometric and anthropometric parameters, physical activity levels, lifestyle habits, and sleep quality. Subjects were aged 27.0 ± 5.14. All items were evaluated as percentages and chi-square and Fisher’s exact tests were performed, as appropriate. Our data showed that the prevalence of the difficulty of falling asleep (over 30%), the tendency of nocturnal awakenings (over 30%), and moderate anxiety (over 38%) were at the same extent in the two groups. Of the professional athletes, 72.73% declared snoring during sleep vs 42.86% of non-professional subjects. No other significant differences were found between the two groups except for the perception of being constant in daily activity, significantly more reported by trained subjects (p < 0.005). Our data show a similar scenario of anxiety and sleep disturbances for the two groups, suggesting that lockdown by the COVID-19 pandemic has partially mitigated the known beneficial effects due to physical activity on mental health and sleep quality. Further analyses are necessary to define the associated risk factors.
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14
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Biggins M, Purtill H, Fowler P, Bender A, Sullivan KO, Samuels C, Cahalan R. Sleep, health, and well-being in elite athletes from different sports, before, during, and after international competition. PHYSICIAN SPORTSMED 2021; 49:429-437. [PMID: 33251907 DOI: 10.1080/00913847.2020.1850149] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Objectives: Limited research has been conducted on sleep problems in elite athletes at international competition, and how this relates to their general health and well-being. Methods: Sixty-five elite international athletes (37 males, 28 females, 21.8 ± 2.1 years) from different sports completed validated sleep (Athlete Sleep Screening Questionnaire), health (Subjective Health Complaints Inventory) and well-being (Sports Profile of Mood States) questionnaires; 1 month pre-competition, at the end of international competition, and 1 month post-competition. Results: Twenty-three percent of the elite athletes were identified as having a moderate or severe clinically significant sleep problem during competition, with 82% reporting less than 8 h of sleep per night. Athletes with a moderate or severe clinically significant sleep problem during competition had significantly greater general health complaints (p = 0.002), mood disturbance (p = 0.001) and poorer sleep hygiene (p = 0.002). Swimmers had more sleep difficulty pre and during competition compared to athletics and soccer (p = 0.009). Conclusion: Sleep disturbance during international competition is common and associated with poorer health and lower mood. Swimmers may be more at risk of sleep difficulty pre and during competition compared to those competing in athletics and soccer. Sleep services may be required to support elite athletes at international competition.
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Affiliation(s)
- Michelle Biggins
- School of Allied Health, University of Limerick, Limerick, Ireland.,Health Research Institute, University of Limerick, Limerick, Ireland
| | - Helen Purtill
- Health Research Institute, University of Limerick, Limerick, Ireland.,Department of Mathematics and Statistics, University of Limerick, Ireland, Sports Spine Centre, Aspetar Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - Peter Fowler
- School of Exercise and Nutrition Sciences, Queensland University of Technology, Brisbane, Australia
| | - Amy Bender
- Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada
| | - Kieran O Sullivan
- School of Allied Health, University of Limerick, Limerick, Ireland.,Health Research Institute, University of Limerick, Limerick, Ireland
| | - Charles Samuels
- Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada.,Cummings School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Roisin Cahalan
- School of Allied Health, University of Limerick, Limerick, Ireland.,Health Research Institute, University of Limerick, Limerick, Ireland
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15
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Sleep Quality in Elite Athletes: Normative Values, Reliability and Understanding Contributors to Poor Sleep. Sports Med 2021; 52:417-426. [PMID: 34554425 DOI: 10.1007/s40279-021-01555-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND The aims of this retrospective study were to (i) provide a description of sleep quality in elite athletes as measured by the Pittsburgh Sleep Quality Index (PSQI), (ii) provide normative PSQI data, (iii) identify differences across sex and sport, (iv) identify components that contribute to high PSQI scores and (v) assess PSQI test-retest reliability. METHODS The PSQI was completed by 479 athletes (371 female and 108 male) across 20 Olympic team and individual sports. For ordinal and categorical variables, the Wilcoxon rank sum test and Chi Squared tests were used, respectively. A random forest regression was built to determine the importance of each PSQI component. Test-retest reliability was assessed using two-way mixed effects intraclass correlation coefficients. RESULTS Fifty-two percent of athletes had a global PSQI score ≥ 5. Team sport athletes reported significantly longer sleep onset latency times but longer sleep durations compared with individual sport athletes. Sleep onset latency and sleep quality made the greatest contribution to the global PSQI scores. The PSQI demonstrated variability over periods of 2 months or more, with a minimal detectable change of 3 arbitrary units (AU). CONCLUSION Long sleep onset latency and poor perceived sleep quality made the greatest contribution to the high PSQI scores observed in approximately half of elite athletes investigated. The PSQI should be administered at regular intervals due to variability within individuals over periods of 2 months or more. Individual questionnaire items or component scores of the PSQI may be useful for practitioners in guiding decision-making regarding sleep interventions in athletes.
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16
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Vlahoyiannis A, Aphamis G, Bogdanis GC, Sakkas GK, Andreou E, Giannaki CD. Deconstructing athletes' sleep: A systematic review of the influence of age, sex, athletic expertise, sport type, and season on sleep characteristics. JOURNAL OF SPORT AND HEALTH SCIENCE 2021; 10:387-402. [PMID: 32325024 PMCID: PMC8343120 DOI: 10.1016/j.jshs.2020.03.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/19/2019] [Accepted: 02/14/2020] [Indexed: 05/11/2023]
Abstract
PURPOSE This systematic review aimed to describe objective sleep parameters for athletes under different conditions and address potential sleep issues in this specific population. METHODS PubMed and Scopus were searched from inception to April 2019. Included studies measured sleep only via objective evaluation tools such as polysomnography or actigraphy. The modified version of the Newcastle-Ottawa Scale was used for the quality assessment of the studies. RESULTS Eighty-one studies were included, of which 56 were classified as medium quality, 5 studies as low quality, and 20 studies as high quality. A total of 1830 athletes were monitored over 18,958 nights. Average values for sleep-related parameters were calculated for all athletes according to sex, age, athletic expertise level, training season, and type of sport. Athletes slept on average 7.2 ± 1.1 h/night (mean ± SD), with 86.3% ± 6.8% sleep efficiency (SE). In all datasets, the athletes' mean total sleep time was <8 h. SE was low for young athletes (80.3% ± 8.8%). Reduced SE was attributed to high wake after sleep onset rather than sleep onset latency. During heavy training periods, sleep duration and SE were on average 36 min and 0.8% less compared to pre-season and 42 min and 3.0% less compared to in-season training periods, respectively. CONCLUSION Athletes' sleep duration was found to be short with low SE, in comparison to the general consensus for non-athlete healthy adults. Notable sleep issues were revealed in young athletes. Sleep quality and architecture tend to change across different training periods.
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Affiliation(s)
- Angelos Vlahoyiannis
- Department of Life and Health Sciences, University of Nicosia, Nicosia 1700, Cyprus
| | - George Aphamis
- Department of Life and Health Sciences, University of Nicosia, Nicosia 1700, Cyprus
| | - Gregory C Bogdanis
- School of Physical Education and Sport Science, National and Kapodistrian University of Athens, Athens 17237, Greece
| | - Giorgos K Sakkas
- Department of Physical Education and Sport Science, University of Thessaly, Trikala 42100, Greece; School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff CF5 2YB, UK
| | - Eleni Andreou
- Department of Life and Health Sciences, University of Nicosia, Nicosia 1700, Cyprus
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17
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Smithies TD, Eastwood PR, Walsh J, Murray K, Markwick W, Dunican IC. Around the world in 16 days: the effect of long-distance transmeridian travel on the sleep habits and behaviours of a professional Super Rugby team. J Sports Sci 2021; 39:2596-2602. [PMID: 34193014 DOI: 10.1080/02640414.2021.1947617] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
There is a scarcity of research examining the effects of long-distance transmeridian travel (LDTT) on the sleep and match performance of team sport players. To address this, 37 elite male rugby union players from a Super Rugby team undertaking LDTT were recruited. The participants completed validated sleep questionnaires and wore a wrist-worn activity monitor (Readiband™) during a Super Rugby season (including during periods of LDTT crossing 5, 6, and 13 time-zones) to ascertain objective measures of sleep. Sleep measures were compared using mixed model analysis to ascertain the effects of competition and LDTT on sleep. Total sleep time (TST) increased in the days prior to matches, and decreased following matches (accompanied by a later time at sleep onset), particularly when next-day early-morning flights were required. TST was decreased when sleep was attempted during LDTT, except for in the last travel bout where players napped in addition to achieving night-time sleep. TST was also reduced for the night immediately following LDTT, except for in Condition 3 where players delayed wake time and also achieved naps. This study exemplifies the challenges that team-sport athletes face in obtaining regular sleep when LDTT is required.
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Affiliation(s)
- Tim D Smithies
- Centre for Sleep Science, School of Human Sciences, University of Western Australia, Crawley WA Australia
| | - Peter R Eastwood
- Centre for Sleep Science, School of Human Sciences, University of Western Australia, Crawley WA Australia
| | - Jennifer Walsh
- Centre for Sleep Science, School of Human Sciences, University of Western Australia, Crawley WA Australia
| | - Kevin Murray
- School of Population and Global Health, University of Western Australia, Crawley WA Australia
| | - Will Markwick
- Western Force, Rugby Western Australia, Floreat WA Australia
| | - Ian C Dunican
- Centre for Sleep Science, School of Human Sciences, University of Western Australia, Crawley WA Australia
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18
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Yan R, Murphy M, Genoni A, Marlow E, Dunican IC, Lo J, Andrew L, Devine A, Christophersen CT. Does Fibre-fix provided to people with irritable bowel syndrome who are consuming a low FODMAP diet improve their gut health, gut microbiome, sleep and mental health? A double-blinded, randomised controlled trial. BMJ Open Gastroenterol 2021; 7:bmjgast-2020-000448. [PMID: 32816830 PMCID: PMC7437697 DOI: 10.1136/bmjgast-2020-000448] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/04/2020] [Accepted: 07/06/2020] [Indexed: 12/16/2022] Open
Abstract
Introduction A diet low in fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAP) is an effective way to reduce gut symptoms in people with irritable bowel syndrome (IBS). This diet reduces the intake of fermentable fibres, leading to changes of the gut microbiota and insufficient fermentation in the large bowel, resulting in reduced production of short-chain fatty acids (SCFAs), such as butyrate, which has unfavourable implications for gut health, sleep and mental health. This study will examine the effect of Fibre-fix, a supplement containing a mix of dietary fibres, on the human gut microbiome composition, fermentative capacity, sleep, quality of life (QOL) and mental health of people with IBS who consume a low FODMAP diet (LFD). Methods and analysis A randomised, double-blind, placebo-controlled, study design is proposed to examine whether Fibre-fix added to an existing LFD may help modulate gastrointestinal function, improve markers of sleep, mental health and promote QOL in patients with IBS. Participants will provide stool and blood samples, daily bowel symptoms diaries and 3-day diet records. Additionally, they will complete validated questionnaires relating to FODMAP intake, sleep, mental health and QOL before and after a 3-week intervention. Gut health will be assessed via faecal microbiome composition, faecal pH and SCFA levels. Alteration of sleep will be recorded using an actigraphy device worn by all participants over the whole study. Multivariate analysis will be used to examine the gut microbiome and repeated measures Analysis of variance (ANOVA) will be used for dependent variables from questionnaires related to bowel symptoms, stool type, sleep, mental health and QOL to assess the differences between intervention and control groups after adjustment for confounding variables. Ethics and dissemination Ethics approval was obtained from the Human Research Ethics Committee of Edith Cowan University (2019-00619-YAN). Results will be disseminated in peer-review journal publications, and conference presentations. Participants will be provided with a summary of findings once the study is completed. If Fibre-fix is shown to result in favourable changes in gut microbial composition, SCFA production, sleep and mental well-being without exacerbating symptoms, this will provide additional dietary management options for those with IBS following an LFD. Trial registration number ACTRN12620000032954.
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Affiliation(s)
- Ran Yan
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Mandy Murphy
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Angela Genoni
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Evania Marlow
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Ian C Dunican
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Johnny Lo
- School of Science, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Lesley Andrew
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Amanda Devine
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Claus T Christophersen
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia.,WA Human Microbiome Collaboration Centre, School of Molecular & Life Sciences, Curtin University, Perth, Western Australia, Australia
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19
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Jones MJ, Dawson B, Eastwood PR, Halson SL, Miller J, Murray K, Dunican IC, Landers GJ, Peeling P. Influence of Electronic Devices on Sleep and Cognitive Performance During Athlete Training Camps. J Strength Cond Res 2021; 35:1620-1627. [PMID: 30741866 DOI: 10.1519/jsc.0000000000002991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Jones, MJ, Dawson, B, Eastwood, PR, Halson, SL, Miller, J, Murray, K, Dunican, IC, Landers, GJ, and Peeling, P. Influence of electronic devices on sleep and cognitive performance during athlete training camps. J Strength Cond Res 35(6): 1620-1627, 2021-This study investigated the effects of removing athletes' electronic devices in the evening on sleep and performance during training camps. Water polo athletes (n = 26) attending a 7-night training camp (study 1) and triathletes (n = 23) attending a 4-night training camp (study 2) were randomly allocated to a no-device group (no electronic devices could be used after dinner or overnight; ND) or control group (unrestricted electronic device use; CON). Sleep was monitored through wrist actigraphy. The ND group completed a questionnaire measuring anxiety related to being unable to use electronic devices ("nomophobia"). Triathletes also completed a psychomotor vigilance test (PVT) at the start and end of camp. Water polo ND athletes went to bed earlier and spent longer time in bed than CON on the first night, but not on other nights. In triathletes, sleep quantity was not different between groups on any night. No statistically significant differences were observed for changes in nomophobia from the first to the last night of camp. No differences in PVT performance were observed between ND and CON triathletes. In conclusion, removal of evening electronic devices does not improve sleep quantity or cognitive performance in athletes during short-duration (4-7 nights) training camps.
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Affiliation(s)
- Maddison J Jones
- School of Human Sciences (Exercise and Sport Science), The University of Western Australia, Crawley, Australia
- High Performance Service Center, Western Australian Institute of Sport, Mt Claremont, Australia
| | - Brian Dawson
- School of Human Sciences (Exercise and Sport Science), The University of Western Australia, Crawley, Australia
| | - Peter R Eastwood
- Center for Sleep Science, School of Human Sciences, The University of Western Australia, Crawley, Australia
| | - Shona L Halson
- School of Behavioral and Health Sciences, Australian Catholic University, Banyo, Australia
| | - Joanna Miller
- Physiology, Australian Institute of Sport, Bruce, Canberra, Australia; and
| | - Kevin Murray
- School of Population and Global Health, The University of Western Australia, Crawley, Australia
| | - Ian C Dunican
- Center for Sleep Science, School of Human Sciences, The University of Western Australia, Crawley, Australia
| | - Grant J Landers
- School of Human Sciences (Exercise and Sport Science), The University of Western Australia, Crawley, Australia
| | - Peter Peeling
- School of Human Sciences (Exercise and Sport Science), The University of Western Australia, Crawley, Australia
- High Performance Service Center, Western Australian Institute of Sport, Mt Claremont, Australia
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20
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Doherty R, Madigan SM, Nevill A, Warrington G, Ellis JG. The Sleep and Recovery Practices of Athletes. Nutrients 2021; 13:nu13041330. [PMID: 33920560 PMCID: PMC8072992 DOI: 10.3390/nu13041330] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Athletes maintain a balance between stress and recovery and adopt recovery modalities that manage fatigue and enhance recovery and performance. Optimal TST is subject to individual variance. However, 7-9 h sleep is recommended for adults, while elite athletes may require more quality sleep than non-athletes. METHODS A total of 338 (elite n = 115, 74 males and 41 females, aged 23.44 ± 4.91 years; and sub-elite n = 223, 129 males and 94 females aged 25.71 ± 6.27) athletes were recruited from a variety of team and individual sports to complete a battery of previously validated and reliable widely used questionnaires assessing sleep, recovery and nutritional practices. RESULTS Poor sleep was reported by both the elite and sub-elite athlete groups (i.e., global PSQI score ≥5-elite 64% [n = 74]; sub-elite 65% [n = 146]) and there was a significant difference in sport-specific recovery practices (3.22 ± 0.90 vs. 2.91 ± 0.90; p < 0.001). Relatively high levels of fatigue (2.52 ± 1.32), stress (1.7 ± 1.31) and pain (50%, n = 169) were reported in both groups. A range of supplements were used regularly by athletes in both groups; indeed, whey (elite n = 22 and sub-elite n = 48) was the most commonly used recovery supplement in both groups. Higher alcohol consumption was observed in the sub-elite athletes (12%, n = 26) and they tended to consume more units of alcohol per drinking bout. CONCLUSION There is a need for athletes to receive individualised support and education regarding their sleep and recovery practices.
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Affiliation(s)
- Rónán Doherty
- Sports Lab North West, Letterkenny Institute of Technology, Port Road, Letterkenny, F92 FC93 Donegal, Ireland
- Sport Ireland Institute, National Sport Campus, Abbotstown, D15 PNON Dublin, Ireland;
- Northumbria Centre for Sleep Research, Northumbria University, Newcastle NE7 7XA, UK;
- Correspondence:
| | - Sharon M. Madigan
- Sport Ireland Institute, National Sport Campus, Abbotstown, D15 PNON Dublin, Ireland;
| | - Alan Nevill
- Faculty of Education, Health and Wellbeing, University of Wolverhampton, Walsall Campus, Walsall WV1 1LY, UK;
| | - Giles Warrington
- Health Research Institute, Schuman Building, University of Limerick, V94 T9PX Limerick, Ireland;
- Department of Physical Education and Sport Sciences, University of Limerick, V94 T9PX Limerick, Ireland
| | - Jason G. Ellis
- Northumbria Centre for Sleep Research, Northumbria University, Newcastle NE7 7XA, UK;
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21
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Fox JL, Scanlan AT, Stanton R, Sargent C. Insufficient Sleep in Young Athletes? Causes, Consequences, and Potential Treatments. Sports Med 2021; 50:461-470. [PMID: 31679145 DOI: 10.1007/s40279-019-01220-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Sleep is essential in the preparation for, and the recovery from, training and competition. Despite being important for all individuals, young athletes are considered an at-risk group for reduced sleep duration and quality. The purpose of this review is to synthesise current literature relating to sleep duration and quality in young (14-25 years) athletes. Specifically, typical sleep and wake patterns, factors affecting sleep and wake patterns, and the consequences of altered sleep and wake patterns in young athletes are discussed. Scheduling training and competition in the afternoon or evening appears to result in reduced sleep duration due to less time in bed. Evidence suggests that young athletes who obtain less than 8 h of sleep per night are at a higher risk of musculoskeletal injury. An increase in sleep duration above habitual nightly sleep may be associated with favourable performance in young athletes; however, the associations between sleep quality and performance- and health-related outcomes remain unclear.
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Affiliation(s)
- Jordan L Fox
- School of Health, Medical and Applied Sciences, Building 81/1.16, Central Queensland University, Bruce Highway, Rockhampton, QLD, 4702, Australia. .,Human Exercise and Training Laboratory, Central Queensland University, Rockhampton, QLD, Australia.
| | - Aaron T Scanlan
- School of Health, Medical and Applied Sciences, Building 81/1.16, Central Queensland University, Bruce Highway, Rockhampton, QLD, 4702, Australia.,Human Exercise and Training Laboratory, Central Queensland University, Rockhampton, QLD, Australia
| | - Robert Stanton
- School of Health, Medical and Applied Sciences, Building 81/1.16, Central Queensland University, Bruce Highway, Rockhampton, QLD, 4702, Australia.,Appleton Institute for Behavioural Science, Central Queensland University, Wayville, SA, Australia
| | - Charli Sargent
- Appleton Institute for Behavioural Science, Central Queensland University, Wayville, SA, Australia
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22
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Sleep Characteristics and Mood of Professional Esports Athletes: A Multi-National Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18020664. [PMID: 33466788 PMCID: PMC7830734 DOI: 10.3390/ijerph18020664] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/11/2021] [Accepted: 01/11/2021] [Indexed: 11/25/2022]
Abstract
Esports is becoming increasingly professionalized, yet research on performance management is remarkably lacking. The present study aimed to investigate the sleep and mood of professional esports athletes. Participants were 17 professional esports athletes from South Korea (N = 8), Australia (N = 4), and the United States (N = 5) who played first person shooter games (mean age 20 ± 3.5 years, 100% male). All participants wore a wrist-activity monitor for 7–14 days and completed subjective sleep and mood questionnaires. Participants had a median total sleep time of 6.8 h and a sleep efficiency of 86.4% per night. All participants had significantly delayed sleep patterns (median sleep onset 3:43 a.m. and wake time 11:24 a.m.). Participants had a median sleep onset latency of 20.4 min and prolonged wake after sleep onset of 47.9 min. Korean players had significantly higher depression scores compared to the other groups (p < 0.01) and trained longer per day than the Australian or United States teams (13.4 vs. 4.8 vs. 6.1 h, respectively). Depression scores were strongly correlated with number of awakenings, wake after sleep onset, and daily training time (p < 0.05). As the first pilot sleep study in the esports field, this study indicates that esports athletes show delayed sleep patterns and have prolonged wake after sleep onset. These sleep patterns may be associated with mood (depression) and training time. Sleep interventions designed specifically for esports athletes appear warranted.
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23
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Driller MW, Dunican IC. No familiarization or 'first-night effect' evident when monitoring sleep using wrist actigraphy. J Sleep Res 2020; 30:e13246. [PMID: 33289237 DOI: 10.1111/jsr.13246] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/27/2020] [Accepted: 11/10/2020] [Indexed: 01/30/2023]
Abstract
Anecdotal reports suggest that the first night of sleep monitoring using a wrist-actigraphy monitor may result in impaired sleep when compared to subsequent nights, due to increased levels of anxiety and awareness of being monitored. This phenomenon has been seen in sleep laboratories with polysomnographic monitoring. However, this is yet to be established for wrist actigraphy monitoring in the research literature. A total of 240 healthy adult participants (177 male, 63 female; age range, 18-35 years) had their sleep monitored using wrist actigraphy over a period of five nights of 'normal' sleep (1,200 nights of data). Sleep variables including sleep latency, wake episodes, wake after sleep onset, awakenings per hour, time in bed, total sleep time and sleep efficiency % were evaluated across all nights of sleep. Comparisons were made using repeated measures ANOVAs, mean differences, range of mean differences, intraclass correlation coefficients (ICC) and Cohen's d effect sizes. There were no significant differences between the first night and subsequent nights for any of the measured sleep variables (p < .05) and all differences were associated with trivial effect sizes (d < 0.2). ICCs ranged from 0.35 to 0.62 (low to moderate). Despite claims of impaired sleep during the first night of sleep monitoring, our results indicate that a familiarization period may not be necessary when monitoring sleep in healthy participants using wrist actigraphy. However, the response is highly individual and further research is required to assess personality traits and responses to sleep monitoring.
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Affiliation(s)
- Matthew W Driller
- Sport and Exercise Science, School of Allied Health, Human Services and Sport, La Trobe University, Melbourne, Vic, Australia
| | - Ian C Dunican
- Centre for Sleep Science, School of Human Sciences, University of Western Australia, Perth, WA, Australia
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Lee PH, Tse ACY, Wu CST, Mak YW, Lee U. Temporal association between objectively measured smartphone usage, sleep quality and physical activity among Chinese adolescents and young adults. J Sleep Res 2020; 30:e13213. [PMID: 33049798 DOI: 10.1111/jsr.13213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/04/2020] [Accepted: 09/16/2020] [Indexed: 11/28/2022]
Abstract
We studied the association between objectively measured smartphone usage and objectively measured sleep quality and physical activity for seven consecutive days among Hong Kong adolescents and young adults aged 11-25 years (n = 357, 67% female). We installed an app that tracked the subjects' smartphone usage and had them wear an ActiGraph GT3X accelerometer on their wrist to measure their sleep quality and physical activity level. Smartphone usage data were successfully obtained from 187 participants (52.4%). The participants on average spent 2 h 46 min per day on their smartphone. Multilevel regression showed that 1 min of daytime smartphone usage was associated with 0.07 min decrease in total sleeping time that night (p = .043, 95% confidence interval [CI]: -0.14, -0.003). Broken down for different usage purposes, 1 min of daytime social network usage and games and comics was associated with a 0.28 (p = .02, 95% CI: -0.52, -0.04) min and 0.18 min (p = .01, 95% CI: -0.32, -0.04) decrease in total sleeping time that night, respectively. One minute of daytime smartphone usage was associated with an increase of 4.55 steps in the number of steps (p = .001, 95% CI: 1.77, 7.34) on the next day. To conclude, time spent on a smartphone in the daytime was associated with total sleeping time that night and number of steps the next day, but was not associated with sleep efficiency, wake after sleep onset and moderate-to-vigorous-intensity activity (MVPA) among Hong Kong adolescents and young adults.
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Affiliation(s)
- Paul H Lee
- School of Nursing, Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Andy C Y Tse
- Department of Health and Physical Education, Education University of Hong Kong, New Territories, Hong Kong
| | - Cynthia S T Wu
- School of Nursing, Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Yim Wah Mak
- School of Nursing, Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Uichin Lee
- Department of Knowledge Service Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
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25
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Simim MADM, Souza HDS, Cardoso Filho CA, Gianoni RLDS, Bezerra RR, Affonso HDO, Amadio AC, D’Almeida V, Serrão JC, Claudino JG. Sleep quality monitoring in individual sports athletes: parameters and definitions by systematic review. Sleep Sci 2020; 13:267-285. [PMID: 33564374 PMCID: PMC7856669 DOI: 10.5935/1984-0063.20200032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 06/22/2020] [Indexed: 12/26/2022] Open
Abstract
In the present review, we identify which instruments and parameters are used for sleep quality monitoring in individual sport athletes and which definitions were used for sleep quality parameters in this literature field. Systematic searches for articles reporting the qualitative markers related to sleep in team sport athletes were conducted in PubMed, Scopus and Web of Science online databases. The systematic review followed the Preferred Reporting Items for Systematic Reviews. The initial search returned 3316 articles. After the removal of duplicate articles, eligibility assessment, 75 studies were included in this systematic review. Our main findings were that the most widely used measurement instruments were Actigraphy (25%), Rating Likert Scales (16%) and Sleep Diary (13%). On sleep quality parameters (Sleep duration = 14%; Wake after sleep onset = 14%; Sleep Quality = 12%; Sleep Effciency = 11% and Sleep Latency = 9%), the main point is that there are different definitions for the same parameters in many cases reported in the literature. We conclude that the most widely used instruments for monitoring sleep quality were Actigraphy, Likert scales and Sleep diary. Moreover, the definitions of sleep parameters are inconsistent in the literature, hindering the understanding of the sleep-sport performance relationship.
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Affiliation(s)
- Mário Antônio de Moura Simim
- Federal University of Ceará, Institute of Physical Education and Sports - Fortaleza - Ceará - Brazil
- Federal University of Ceará, Master Program in Physioterapy and Functioning - Fortaleza - Ceará - Brazil
| | - Helton de Sá Souza
- Universidade Federal de São Paulo, Departamento de Psicobiologia - São Paulo -Brazil
- Centro Universitário de Volta Redonda - UniFOA, Curso de Educação Física - Volta Redonda - Rio de Janeiro - Brazil
| | | | - Rodrigo Luiz da Silva Gianoni
- Paulista University - UNIP
- LOAD CONTROL, Research and Development Department - Contagem - Minas Gerais - Brazil
- Peruíbe College - FPbe - UNISEPE
| | | | - Helvio de Oliveira Affonso
- Appto Physiology, Laboratory of Exercise, Nutrition and Sports Training, Espirito Santo - Vitoria - Espírito Santo - Brazil
- Vila Velha University, Pharmaceutical Sciences Graduate Program - Vila Velha - Espírito Santo - Brazil
| | - Alberto Carlos Amadio
- Universidade de São Paulo, School of Physical Education and Sport - Laboratory of Biomechanics- Brazil
| | - Vânia D’Almeida
- Universidade Federal de São Paulo, Departamento de Psicobiologia - São Paulo -Brazil
| | - Júlio Cerca Serrão
- Universidade de São Paulo, School of Physical Education and Sport - Laboratory of Biomechanics- Brazil
| | - João Gustavo Claudino
- Universidade de São Paulo, School of Physical Education and Sport - Laboratory of Biomechanics- Brazil
- LOAD CONTROL, Research and Development Department - Contagem - Minas Gerais - Brazil
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26
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Vlahoyiannis A, Sakkas GK, Manconi M, Aphamis G, Giannaki CD. A critical review on sleep assessment methodologies in athletic populations: factors to be considered. Sleep Med 2020; 74:211-223. [PMID: 32861013 DOI: 10.1016/j.sleep.2020.07.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/18/2020] [Accepted: 07/27/2020] [Indexed: 12/13/2022]
Abstract
A growing body of research focus on athletes' sleep in order to investigate the effects of sleep in sports performance and recovery or the prevalence of sleep disorders in athletes. At the same time, several sleep monitoring tools have been developed and used in athletic populations for fulfilling these purposes. This review aimed to provide critical assessment to the most used by athletes' methodological approaches and compared them with the gold standard approach. Advantages and disadvantages of the various sleep monitoring tools were critically discussed. Literature related to aspects of athletes' sleep was reviewed. From the shortlisted studies, several factors that seem to affect sleep in athletes were identified using objective methods such as polysomnography/electroencephalography and actigraphy. These factors were associated to sleep (eg such as sleep environment, familiarization procedures and napping) and daily habits (eg nutrition, fluid consumption, alcohol and caffeine intake, tobacco use). The selected studies that evaluated sleep objectively were screened according the reporting rates of these variables. The majority of the screened studies were found to underreport these variables. Practical issues were addressed and recommendations about reporting sleep-related factors were made in order to improve studies' quality assessment and allow for more robust comparisons between studies.
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Affiliation(s)
| | - Giorgos K Sakkas
- Department of Physical Education and Sport Science, University of Thessaly, Trikala, Greece; School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Mauro Manconi
- Sleep and Epilepsy Center, Neurocenter of Southern Switzerland, Civic Hospital (EOC) of Lugano, Lugano, Switzerland
| | - George Aphamis
- Department of Life and Health Sciences, University of Nicosia, Nicosia, Cyprus
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27
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Ghigiarelli JJ, Fulop AM, Burke AA, Ferrara AJ, Sell KM, Gonzalez AM, Pelton LM, Zimmerman JA, Coke SG, Marshall DG. The Effects of Whole-Body Photobiomodulation Light-Bed Therapy on Creatine Kinase and Salivary Interleukin-6 in a Sample of Trained Males: A Randomized, Crossover Study. Front Sports Act Living 2020; 2:48. [PMID: 33345040 PMCID: PMC7739664 DOI: 10.3389/fspor.2020.00048] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 04/07/2020] [Indexed: 11/30/2022] Open
Abstract
Photobiomodulation therapy (PBMT) can be applied to the whole body as compared to the application of using single hand-held devices that isolate a smaller muscle area. The purpose of this study was to examine the effects of an acute dose of whole-body PBMT pre- and post-high-intensity resistance training on creatine kinase (CK) and salivary interleukin-6 (IL-6) in a sample of trained males. Twelve males (31 ± 8.3 years, 177.2 ± 5.4 cm, and 86.0 ± 7.5 kg) were part of a randomized, counterbalanced, cross-over design, whereby each participant performed a high-intensity resistance training session that consisted of the bench press, chin-up, and repeated sprints on two separate occasions. Each participant was assigned to either the PBMT or control condition on two separate weeks, with a 10-days washout period between the weeks. Creatine kinase was measured at baseline, 24, 48, and 72 h post-exercise. Salivary IL-6 was measured at baseline, 60, 90, and 120 min. A paired t-test showed no significant difference (p = 0.669) in the area under the curve (AUC) for CK during the PBMT (191.7 ± 48.3) and control conditions (200.2 ± 68.0). A Wilcoxon signed-rank test also showed no significant median difference (p = 0.155) in the AUC for salivary IL-6 during the PBMT (Mdn = 347.7) and control conditions (Mdn = 305.8). An additional Wilcoxon signed-rank test for CK percentage change from 24 to 72 h showed the PBMT condition (Mdn = −45%) to have a −18% median difference as compared to the control condition (Mdn = −41%). As such, whole-body PBMT does not significantly reduce the activity of salivary IL-6 or CK concentration during the 24 to 72-h recovery post-high-intensity resistance training.
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Affiliation(s)
- Jamie J Ghigiarelli
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Andras M Fulop
- Department of Health Professions, Hofstra University, Hempstead, NY, United States.,Crux Physical Therapy, Garden City, NY, United States
| | - Adam A Burke
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Anthony J Ferrara
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Katie M Sell
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Adam M Gonzalez
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Luke M Pelton
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Jamie A Zimmerman
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
| | - Shaquille G Coke
- Department of Health Professions, Hofstra University, Hempstead, NY, United States
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28
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Charest J, Grandner MA. Sleep and Athletic Performance: Impacts on Physical Performance, Mental Performance, Injury Risk and Recovery, and Mental Health. Sleep Med Clin 2020; 15:41-57. [PMID: 32005349 PMCID: PMC9960533 DOI: 10.1016/j.jsmc.2019.11.005] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Research has characterized the sleep of elite athletes and attempted to identify factors associated with athletic performance, cognition, health, and mental well-being. Sleep is a fundamental component of performance optimization among elite athletes, yet only recently embraced by sport organizations as an important part of training and recovery. Sleep plays a crucial role in physical and cognitive performance and is an important factor in reducing risk of injury. This article aims to highlight the prevalence of poor sleep, describe its impacts, and address the issue of sport culture surrounding healthy sleep.
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Affiliation(s)
- Jonathan Charest
- Department of Psychology, Universite Laval, Quebec City, Quebec, Canada; Centre for Sleep and Human Performance, #106, 51 Sunpark Drive Southeast, Calgary, Alberta T2X 3V4, Canada
| | - Michael A Grandner
- Department of Psychiatry, University of Arizona, 1501 North Campbell Avenue, PO Box 245002, Tucson, AZ 8524-5002, USA.
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29
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de Zambotti M, Cellini N, Menghini L, Sarlo M, Baker FC. Sensors Capabilities, Performance, and Use of Consumer Sleep Technology. Sleep Med Clin 2020; 15:1-30. [PMID: 32005346 PMCID: PMC7482551 DOI: 10.1016/j.jsmc.2019.11.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Sleep is crucial for the proper functioning of bodily systems and for cognitive and emotional processing. Evidence indicates that sleep is vital for health, well-being, mood, and performance. Consumer sleep technologies (CSTs), such as multisensory wearable devices, have brought attention to sleep and there is growing interest in using CSTs in research and clinical applications. This article reviews how CSTs can process information about sleep, physiology, and environment. The growing number of sensors in wearable devices and the meaning of the data collected are reviewed. CSTs have the potential to provide opportunities to measure sleep and sleep-related physiology on a large scale.
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Affiliation(s)
- Massimiliano de Zambotti
- Center for Health Sciences, SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025, USA.
| | - Nicola Cellini
- Department of General Psychology, University of Padua, Via Venezia, 8 - 35131 Padua, Italy; Department of Biomedical Sciences, University of Padua, Via Ugo Bassi 58/B - 35121 Padua, Italy; Padova Neuroscience Center, University of Padua, Via Giuseppe Orus, 2, 35131 Padua, Italy; Human Inspired Technology Center, University of Padua, Via Luzzatti, 4 - 35121 Padua, Italy
| | - Luca Menghini
- Department of General Psychology, University of Padua, Via Venezia, 8 - 35131 Padua, Italy
| | - Michela Sarlo
- Department of General Psychology, University of Padua, Via Venezia, 8 - 35131 Padua, Italy; Padova Neuroscience Center, University of Padua, Via Giuseppe Orus, 2, 35131 Padua, Italy
| | - Fiona C Baker
- Center for Health Sciences, SRI International, 333 Ravenswood Avenue, Menlo Park, CA 94025, USA; Brain Function Research Group, School of Physiology, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein 2000, Johannesburg, South Africa
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30
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Brauer AA, Athey AB, Ross MJ, Grandner MA. Sleep and Health Among Collegiate Student Athletes. Chest 2019; 156:1234-1245. [DOI: 10.1016/j.chest.2019.08.1921] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 07/02/2019] [Accepted: 08/09/2019] [Indexed: 12/15/2022] Open
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31
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de Zambotti M, Cellini N, Goldstone A, Colrain IM, Baker FC. Wearable Sleep Technology in Clinical and Research Settings. Med Sci Sports Exerc 2019; 51:1538-1557. [PMID: 30789439 PMCID: PMC6579636 DOI: 10.1249/mss.0000000000001947] [Citation(s) in RCA: 202] [Impact Index Per Article: 40.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
: The accurate assessment of sleep is critical to better understand and evaluate its role in health and disease. The boom in wearable technology is part of the digital health revolution and is producing many novel, highly sophisticated and relatively inexpensive consumer devices collecting data from multiple sensors and claiming to extract information about users' behaviors, including sleep. These devices are now able to capture different biosignals for determining, for example, HR and its variability, skin conductance, and temperature, in addition to activity. They perform 24/7, generating overwhelmingly large data sets (big data), with the potential of offering an unprecedented window on users' health. Unfortunately, little guidance exists within and outside the scientific sleep community for their use, leading to confusion and controversy about their validity and application. The current state-of-the-art review aims to highlight use, validation and utility of consumer wearable sleep-trackers in clinical practice and research. Guidelines for a standardized assessment of device performance is deemed necessary, and several critical factors (proprietary algorithms, device malfunction, firmware updates) need to be considered before using these devices in clinical and sleep research protocols. Ultimately, wearable sleep technology holds promise for advancing understanding of sleep health; however, a careful path forward needs to be navigated, understanding the benefits and pitfalls of this technology as applied in sleep research and clinical sleep medicine.
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Affiliation(s)
| | - Nicola Cellini
- Department of General Psychology, University of Padova,
Padova, Italy
| | - Aimee Goldstone
- Center for Health Sciences, SRI International, Menlo Park,
CA, US
| | - Ian M Colrain
- Center for Health Sciences, SRI International, Menlo Park,
CA, US
- Melbourne School of Psychological Sciences, University of
Melbourne, Parkville, Victoria, Australia
| | - Fiona C Baker
- Center for Health Sciences, SRI International, Menlo Park,
CA, US
- Brain Function Research Group, School of Physiology,
University of the Witwatersrand, Johannesburg, South Africa
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32
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Hainline B, Reardon CL. Breaking a taboo: why the International Olympic Committee convened experts to develop a consensus statement on mental health in elite athletes. Br J Sports Med 2019; 53:665-666. [PMID: 31097449 DOI: 10.1136/bjsports-2019-100681] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2019] [Indexed: 12/20/2022]
Affiliation(s)
- Brian Hainline
- Sport Science Institute, National Collegiate Athletic Association (NCAA), Indianapolis, Indiana, USA
| | - Claudia L Reardon
- Department of Psychiatry, University of Wisconsin Madison School of Medicine and Public Health, Madison, Wisconsin, USA
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33
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Dunican IC, Higgin CC, Murray K, Jones MJ, Dawson B, Caldwell JA, Halson SL, Eastwood PR. Sleep Patterns and Alertness in an Elite Super Rugby Team During a Game Week. J Hum Kinet 2019; 67:111-121. [PMID: 31523310 PMCID: PMC6714368 DOI: 10.2478/hukin-2018-0088] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sleep is a vital component of preparation, performance and recovery for a Super Rugby game. The purpose of this study was to quantify sleep behaviours and alertness of professional rugby union players during training and a game. Thirty-six rugby union players from a Super Rugby team wore a wrist-activity device (Readiband™) to measure sleep for 3 days before, 3 days after and on the night of an evening game. Players were separated into those selected to play the game (n = 23) and those who were not (n = 13). Alertness was assessed for all training and game times using bio-mathematical modelling. Alertness measures ≤90% were considered to reflect impaired reaction time. Those selected to play in the game progressively increased sleep duration over the nights prior to the game (by 92 min p ≤ 0.05) by delaying wake time. Players went to bed later after the game (02:20 ± 114 min vs 22:57 ± 60 min; p ≤ 0.001) which resulted in decreased sleep duration on game night compared to pre-game nights (296 ± 179 min vs 459 ± 78 min; p ≤ 0.05). Four players did not achieve any sleep on game night. Sleep duration appeared to be truncated by early morning training sessions (before 08:00) on the second and third mornings after the game. Alertness was >90% for all training and game times for all players. In conclusion, in the days leading into a Super Rugby game, players delay morning time at wake and consequently increase sleep duration with post-game sleep reduced in some.
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Affiliation(s)
- Ian C Dunican
- Centre for Sleep Science, School of Huma Sciences, The University of Western Australia, Crawley, WA 6009, Australia
| | - Charles C Higgin
- Western Force, Rugby Western Australia, FloreatWA 6014, Australia
| | - Kevin Murray
- School of Population and Global Health, The University of Western Australia, Crawley, WA 6009, Australia
| | - Maddison J Jones
- School of Human Sciences, The University of Western Australia, Crawley, WA 6009, Australia
| | - Brian Dawson
- School of Human Sciences, The University of Western Australia, Crawley, WA 6009, Australia
| | | | - Shona L Halson
- Department of Physiology, Australian Institute of Sport, Leverrier Street, Bruce, ACT, 2617, Australia
| | - Peter R Eastwood
- Centre for Sleep Science, School of Huma Sciences, The University of Western Australia, Crawley, WA 6009, Australia
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34
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Kroshus E, Wagner J, Wyrick D, Athey A, Bell L, Benjamin HJ, Grandner MA, Kline CE, Mohler JM, Roxanne Prichard J, Watson NF, Hainline B. Wake up call for collegiate athlete sleep: narrative review and consensus recommendations from the NCAA Interassociation Task Force on Sleep and Wellness. Br J Sports Med 2019; 53:731-736. [DOI: 10.1136/bjsports-2019-100590] [Citation(s) in RCA: 104] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/28/2019] [Indexed: 12/13/2022]
Abstract
Sleep is an important determinant of collegiate athlete health, well-being and performance. However, collegiate athlete social and physical environments are often not conducive to obtaining restorative sleep. Traditionally, sleep has not been a primary focus of collegiate athletic training and is neglected due to competing academic, athletic and social demands. Collegiate athletics departments are well positioned to facilitate better sleep culture for their athletes. Recognising the lack of evidence-based or consensus-based guidelines for sleep management and restorative sleep for collegiate athletes, the National Collegiate Athletic Association hosted a sleep summit in 2017. Members of the Interassociation Task Force on Sleep and Wellness reviewed current data related to collegiate athlete sleep and aimed to develop consensus recommendations on sleep management and restorative sleep using the Delphi method. In this paper, we provide a narrative review of four topics central to collegiate athlete sleep: (1) sleep patterns and disorders among collegiate athletes; (2) sleep and optimal functioning among athletes; (3) screening, tracking and assessment of athlete sleep; and (4) interventions to improve sleep. We also present five consensus recommendations for colleges to improve their athletes’ sleep.
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35
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Mental health in elite athletes: International Olympic Committee consensus statement (2019). Br J Sports Med 2019; 53:667-699. [DOI: 10.1136/bjsports-2019-100715] [Citation(s) in RCA: 349] [Impact Index Per Article: 69.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/03/2019] [Indexed: 11/03/2022]
Abstract
Mental health symptoms and disorders are common among elite athletes, may have sport related manifestations within this population and impair performance. Mental health cannot be separated from physical health, as evidenced by mental health symptoms and disorders increasing the risk of physical injury and delaying subsequent recovery. There are no evidence or consensus based guidelines for diagnosis and management of mental health symptoms and disorders in elite athletes. Diagnosis must differentiate character traits particular to elite athletes from psychosocial maladaptations.Management strategies should address all contributors to mental health symptoms and consider biopsychosocial factors relevant to athletes to maximise benefit and minimise harm. Management must involve both treatment of affected individual athletes and optimising environments in which all elite athletes train and compete. To advance a more standardised, evidence based approach to mental health symptoms and disorders in elite athletes, an International Olympic Committee Consensus Work Group critically evaluated the current state of science and provided recommendations.
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36
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Jones MJ, Dawson B, Gucciardi DF, Eastwood PR, Miller J, Halson SL, Dunican IC, Peeling P. Evening electronic device use and sleep patterns in athletes. J Sports Sci 2018; 37:864-870. [PMID: 30326782 DOI: 10.1080/02640414.2018.1531499] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The present study aimed to investigate pre-sleep behaviours (including evening electronic device use) and sleep quantity in well-trained athletes. Seventy well-trained athletes (44 females, 26 males) aged 21 ± 4 y from a range of team and individual sports were asked to complete an online sleep diary for 7 days. The sleep diary included questions about pre-sleep behaviours (e.g. napping, caffeine intake), electronic device use in the 2 h prior to bedtime (e.g. type of device and duration of use) and sleep (e.g. time in bed, sleep onset latency). On average, athletes spent 8:20 ± 1:21 h in bed each night. Associations between age, time in bed and sleepiness suggested that younger athletes spent more time in bed (B = -0.05, p = 0.001) but felt sleepier (r = -0.32, p < 0.01) than older athletes. On average, athletes mostly used electronic devices for 0-30 min prior to sleep. The use of multiple devices in the evening was associated with more perceived difficulty in falling asleep (B = 0.22, p = 0.03), but no associations existed with other sleep variables. In summary, younger athletes may require later start times or improved sleep quality to resolve excessive sleepiness.
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Affiliation(s)
- Maddison J Jones
- a School of Human Sciences (Sport Science, Exercise and Health) , The University of Western Australia , Crawley , Australia.,b Western Australian Institute of Sport , High Performance Service Centre , Perth , Australia
| | - Brian Dawson
- a School of Human Sciences (Sport Science, Exercise and Health) , The University of Western Australia , Crawley , Australia
| | - Daniel F Gucciardi
- c School of Physiotherapy and Exercise Science , Curtin University , Bentley , Australia
| | - Peter R Eastwood
- d Centre for Sleep Science, School of Human Sciences , The University of Western Australia , Crawley , Australia
| | - Joanna Miller
- e Department of Physiology , Australian Institute of Sport , Canberra , Australia
| | - Shona L Halson
- e Department of Physiology , Australian Institute of Sport , Canberra , Australia
| | - Ian C Dunican
- d Centre for Sleep Science, School of Human Sciences , The University of Western Australia , Crawley , Australia
| | - Peter Peeling
- a School of Human Sciences (Sport Science, Exercise and Health) , The University of Western Australia , Crawley , Australia.,b Western Australian Institute of Sport , High Performance Service Centre , Perth , Australia
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37
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Roberts SSH, Teo WP, Warmington SA. Effects of training and competition on the sleep of elite athletes: a systematic review and meta-analysis. Br J Sports Med 2018; 53:513-522. [DOI: 10.1136/bjsports-2018-099322] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/06/2018] [Indexed: 12/21/2022]
Abstract
ObjectivesTo characterise the sleep of elite athletes and to identify factors associated with training and competition that negatively affect sleep.DesignPrognosis systematic review.Data sourcesThree databases (PubMed, SCOPUS and SPORTDiscus) were searched from inception to 26 February 2018.Eligibility criteria for selecting studiesIncluded studies objectively reported total sleep time (TST) and/or sleep efficiency (SE) in elite athletes. Studies were required to be observational or to include an observational trial.ResultsFifty-four studies were included. During training, many studies reported athletes were unable to achieve TST (n=23/41) and/or SE (n=16/37) recommendations. On the night of competition, most studies reported athletes were unable to achieve TST (n=14/18) and/or SE (n=10/16) recommendations. TST was shorter (60 min) the night of competition compared with previous nights. SE was lower (1%) the night of competition compared with the previous night. TST was shorter the night of night competition (start ≥18:00; 80 min) and day competition (20 min) compared with the previous night. SE was lower (3%–4%) the night of night competition but unchanged the night of day competition compared with previous nights. Early morning training (start <07:00), increases in training load (>25%), late night/early morning travel departure times, eastward air travel and altitude ascent impaired sleep.ConclusionAthletes were often unable to achieve sleep recommendations during training or competition periods. Sleep was impaired the night of competition compared with previous nights. Early morning training, increases in training load, travel departure times, jet lag and altitude can impair athletes’ sleep.PROSPERO registration numberCRD42017074367.
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Bender AM, Van Dongen HPA, Samuels CH. Sleep Quality and Chronotype Differences between Elite Athletes and Non-Athlete Controls. Clocks Sleep 2018; 1:3-12. [PMID: 33089151 PMCID: PMC7509668 DOI: 10.3390/clockssleep1010002] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 08/30/2018] [Indexed: 12/20/2022] Open
Abstract
Previous research has found that elite athletes have insufficient sleep, yet the specific kinds of sleep disturbances occurring as compared to a control group are limited. Here we compare the subjective sleep quality and chronotype of elite athletes to a control group of non-athlete good sleepers. Sixty-three winter Canadian National Team athletes (mean age 26.0 ± 0.0; 32% females) completed the Pittsburgh Sleep Quality Index (PSQI) and the Athlete Morningness Eveningness Scale. They were compared to 83 healthy, non-athlete, good-sleeper controls (aged 27.3 ± 3.7; 51% females) who completed the PSQI and the Composite Scale of Morningness. The elite athletes reported poorer sleep quality (PSQI global score 5.0 ± 2.6) relative to the controls (PSQI global score 2.6 ± 1.3), despite there being no group difference in self-reported sleep duration (athletes 8.1 ± 1.0 h; controls 8.0 ± 0.7 h). Further, athletes’ chronotype distribution showed a greater skew toward morningness, despite there being no group differences in self-reported usual bedtime and wake time. These results suggest that a misalignment of sleep times with circadian preference could contribute to poorer sleep quality in elite athletes.
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Affiliation(s)
- Amy M. Bender
- Faculty of Kinesiology, University of Calgary, Calgary, AB T2N 1N4, Canada
- Correspondence: ; Tel.: +1-587-703-8664
| | - Hans P. A. Van Dongen
- Sleep and Performance Research Center, Washington State University, Spokane, WA 99202, USA
- Elson S. Floyd College of Medicine, Washington State University, Spokane, WA 99202, USA
| | - Charles H. Samuels
- Faculty of Kinesiology, University of Calgary, Calgary, AB T2N 1N4, Canada
- Centre for Sleep and Human Performance, Calgary, AB T2X 3V4, Canada
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Nedelec M, Aloulou A, Duforez F, Meyer T, Dupont G. The Variability of Sleep Among Elite Athletes. SPORTS MEDICINE-OPEN 2018; 4:34. [PMID: 30054756 PMCID: PMC6063976 DOI: 10.1186/s40798-018-0151-2] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 07/10/2018] [Indexed: 12/30/2022]
Abstract
Practicing sport at the highest level is typically accompanied by several stressors and restrictions on personal life. Elite athletes’ lifestyle delivers a significant challenge to sleep, due to both the physiological and psychological demands, and the training and competition schedules. Inter-individual variability of sleep patterns (e.g., sleep requirements, chronotype) may have important implications not only for recovery and training schedules but also for the choice of measures to possibly improve sleep. This article provides a review of the current available literature regarding the variability of sleep among elite athletes and factors possibly responsible for this phenomenon. We also provide methodological approaches to better address the inter-individual variability of sleep in future studies with elite athletes. There is currently little scientific evidence supporting a specific influence of one particular type of sport on sleep; sleep disorders may be, however, more common in strength/power and contact sports. Sleep behavior may notably vary depending on the athlete’s typical daily schedule. The specificity of training and competition schedules possibly accounts for the single most influential factor leading to inconsistency in sleep among elite athletes (e.g., “social jet lag”). Additionally, athletes are affected by extensive exposure to electric light and evening use of electronic media devices. Therefore, the influence of ordinary sleep, poor sleep, and extended sleep as important additional contributors to training load should be studied. Future experimental studies on sleep and elite sport performance should systematically report the seasonal phase. Boarding conditions may provide a good option to standardize as many variables as possible without the inconvenience of laboratory. The use of interdisciplinary mixed-method approaches should be encouraged in future studies on sleep and elite sport. Finally, high inter- and intra-individual variability in the athletes’ sleep characteristics suggests a need for providing individual responses in addition to group means.
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Affiliation(s)
- Mathieu Nedelec
- French Institute of Sport (INSEP), Research Department, Laboratory Sport, Expertise and Performance (EA 7370), 11 Avenue du Tremblay, 75012, Paris, France.
| | - Anis Aloulou
- French Institute of Sport (INSEP), Research Department, Laboratory Sport, Expertise and Performance (EA 7370), 11 Avenue du Tremblay, 75012, Paris, France
| | - François Duforez
- Centre du Sommeil, Hotel Dieu de Paris, 1 Place du Parvis Notre Dame, 75004, Paris, France
| | - Tim Meyer
- Institute of Sport and Preventive Medicine, Saarland University, GEB. B82, 66123, Saarbrucken, Germany
| | - Gregory Dupont
- French Institute of Sport (INSEP), Research Department, Laboratory Sport, Expertise and Performance (EA 7370), 11 Avenue du Tremblay, 75012, Paris, France
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Dunican IC, Higgins CC, Jones MJ, Clarke MW, Murray K, Dawson B, Caldwell JA, Halson SL, Eastwood PR. Caffeine use in a Super Rugby game and its relationship to post-game sleep. Eur J Sport Sci 2018; 18:513-523. [DOI: 10.1080/17461391.2018.1433238] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ian C. Dunican
- Centre for Sleep Science, School of Human Sciences, The University of Western Australia, Crawley, WA, Australia
| | | | - Maddison J. Jones
- School of Human Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Michael W. Clarke
- Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, Crawley, WA, Australia
| | - Kevin Murray
- School of Population and Global Health, The University of Western Australia, Crawley, WA, Australia
| | - Brian Dawson
- School of Human Sciences, The University of Western Australia, Crawley, WA, Australia
| | | | - Shona L. Halson
- Department of Physiology, The Australian Institute of Sport, Canberra, ACT, Australia
| | - Peter R. Eastwood
- Centre for Sleep Science, School of Human Sciences, The University of Western Australia, Crawley, WA, Australia
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Baron KG, Duffecy J, Berendsen MA, Cheung Mason I, Lattie EG, Manalo NC. Feeling validated yet? A scoping review of the use of consumer-targeted wearable and mobile technology to measure and improve sleep. Sleep Med Rev 2017; 40:151-159. [PMID: 29395985 DOI: 10.1016/j.smrv.2017.12.002] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 11/28/2017] [Accepted: 12/05/2017] [Indexed: 11/16/2022]
Abstract
The objectives of this review were to evaluate the use of consumer-targeted wearable and mobile sleep monitoring technology, identify gaps in the literature and determine the potential for use in behavioral interventions. We undertook a scoping review of studies conducted in adult populations using consumer-targeted wearable technology or mobile devices designed to measure and/or improve sleep. After screening for inclusion/exclusion criteria, data were extracted from the articles by two co-authors. Articles included in the search were using wearable or mobile technology to estimate or evaluate sleep, published in English and conducted in adult populations. Our search returned 3897 articles and 43 met our inclusion criteria. Results indicated that the majority of studies focused on validating technology to measure sleep (n = 23) or were observational studies (n = 10). Few studies were used to identify sleep disorders (n = 2), evaluate response to interventions (n = 3) or deliver interventions (n = 5). In conclusion, the use of consumer-targeted wearable and mobile sleep monitoring technology has largely focused on validation of devices and applications compared with polysomnography (PSG) but opportunities exist for observational research and for delivery of behavioral interventions. Multidisciplinary research is needed to determine the uses of these technologies in interventions as well as the use in more diverse populations including sleep disorders and other patient populations.
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Affiliation(s)
- Kelly Glazer Baron
- Department of Behavioral Sciences, Rush University Medical Center, Chicago, IL, USA.
| | - Jennifer Duffecy
- Department of Psychiatry, University of Illinois, Chicago, Chicago, IL, USA
| | - Mark A Berendsen
- Galter Health Sciences Library, Feinberg School of Medicine, Northwestern University, USA
| | - Ivy Cheung Mason
- Center for Circadian and Sleep Medicine, Department of Neurology, Feinberg School of Medicine, Northwestern University, USA
| | - Emily G Lattie
- Center for Behavioral Intervention Technologies, Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, USA
| | - Natalie C Manalo
- Department of Neurology, Massachusetts General Hospital, Harvard University, USA
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Fowler PM, Paul DJ, Tomazoli G, Farooq A, Akenhead R, Taylor L. Evidence of sub-optimal sleep in adolescent Middle Eastern academy soccer players which is exacerbated by sleep intermission proximal to dawn. Eur J Sport Sci 2017. [DOI: 10.1080/17461391.2017.1341553] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Peter M. Fowler
- ASPETAR – Orthopaedic and Sports Medicine Hospital, Athlete Health and Performance Research Centre, Doha, Qatar
| | - Darren J. Paul
- Football Excellence Project, ASPETAR – Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - Gustavo Tomazoli
- Football Excellence Project, ASPETAR – Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - Abdulaziz Farooq
- ASPETAR – Orthopaedic and Sports Medicine Hospital, Athlete Health and Performance Research Centre, Doha, Qatar
| | - Richard Akenhead
- Football Excellence Project, ASPETAR – Orthopaedic and Sports Medicine Hospital, Doha, Qatar
| | - Lee Taylor
- ASPETAR – Orthopaedic and Sports Medicine Hospital, Athlete Health and Performance Research Centre, Doha, Qatar
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
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