Evidence of Disturbed Sleep and Increased Illness in Overreached Endurance Athletes

Hausswirth, Christophe; Louis, Julien; Aubry, Anaël; Bonnet, Guillaume; Duffield, Rob; Meur, Yann Le

doi:10.1249/mss.0000000000000177

Cited by 191 publications

(198 citation statements)

References 34 publications

(40 reference statements)

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“…7 Collectively, the data presented in the current study provide evidence for the association between heightened internal-TL and the presence of self-reported illness. Whilst these data support previous research of the increased risk of illness associated with heightened training, 22,27,28 the results of the present study are specific to the athletic cohort recruited. Further, it must be noted that these findings are applicable to other team-sport athletes, however the training load values will vary depending on the typical training undergone by the athletes.…”

Section: Discussionsupporting

confidence: 90%

Predicting Self-Reported Illness for Professional Team-Sport Athletes

Thornton

Delaney²,

Duthie³

et al. 2016

International Journal of Sports Physiology and Performance

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word count: 228Text-only word count: 3303 Number of tables: 2 Number of figures: 4 2 Abstract Purpose: The aim of this study was to identify contributing factors to the incidence of illness for professional team-sport athletes, utilizing training load (TL), self-reported illness and wellbeing data. Methods: Thirty-two professional rugby league players (26.0 ± 4.8 yr; 99.1 ± 9.6 kg; 1.84 ± 0.06 m) were recruited from the same club. Players participated in prescribed training and responded to a series of questionnaires to determine the presence of self-reported illness and markers of wellbeing. Internal-TL was determined using the session rating of perceived exertion (sRPE) method. These data were collected over 29 weeks, across the preparatory and competition macrocycles. Results: The predictive models developed recognized increases in internal-TL (strain values of >2282 AU, weekly-TL >2786 AU and monotony >0.78 AU) to best predict when athletes are at increased risk of self-reported illness. In addition, a reduction in overall wellbeing (<7.25 AU) in the presence of increased internal-TL as previously stated, was highlighted as a contributor to self-reported illness occurrence. Conclusions: These results indicate that self-report data can be successfully utilized to provide a novel understanding of the interactions between competition-associated stressors experienced by professional team-sport athletes and their susceptibility to illness. This may assist coaching staff to more effectively monitor players during the season and to potentially implement preventative measures to reduce the likelihood of illnesses occurring.

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Section: Discussionsupporting

confidence: 90%

Predicting Self-Reported Illness for Professional Team-Sport Athletes

Thornton

Delaney²,

Duthie³

et al. 2016

International Journal of Sports Physiology and Performance

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show abstract

“…These findings contradict the theory that sleep is proportional to restorative needs and instead fall in line with results from similar studies that have reported impaired sleep efficiency during periods of intense training (Fietze et al, 2009) or when athletes have become overreached (Hausswirth et al, 2014). However, it is interesting to note that actual sleep time was significantly higher during IT in CON than HCHO, which may indicate an increased requirement for recovery and/or expression of fatigue.…”

Section: Discussioncontrasting

confidence: 72%

“…Previous sleep research has primarily focused on physically active groups of 'good sleepers' whereby the exercise stress is low and the margin for sleep improvement is relatively small (ceiling effect) (Driver & Taylor, 2000). A small collection of studies have reported sleeping behaviours in athletes, finding evidence for sleep disturbance during busy times in the season (Taylor et al, 1997) and reduced sleep efficiency, duration and immobile time when diagnosed as overreached (Hausswirth et al, 2014). Conversely, increases in slow wave sleep during busy periods have been reported, suggesting improved sleep quality and thereby supporting the restorative theory of sleep (Oswald, 1970).…”

Section: Introductionmentioning

confidence: 99%

Evidence of disturbed sleep and mood state in well-trained athletes during short-term intensified training with and without a high carbohydrate nutritional intervention

Killer

Svendsen

Jeukendrup

et al. 2015

Journal of Sports Sciences

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“…During recovery from a soccer match, soccer players are prone to delayed onset muscle soreness [79] that may induce difficulties remaining immobile during sleep and thus impairing sleep quantity and quality [80]. Non-steroidal antiinflammatory drug consumption may consequently influence overall sleep by mediating exercise-induced muscle soreness.…”

Section: Caffeine Alcohol Medication and Sleepmentioning

confidence: 99%

Stress, Sleep and Recovery in Elite Soccer: A Critical Review of the Literature

et al. 2015

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In elite soccer, players are frequently exposed to various situations and conditions that can interfere with sleep, potentially leading to sleep deprivation. This article provides a comprehensive and critical review of the current available literature regarding the potential acute and chronic stressors (i.e., psychological, sociological and physiological stressors) placed on elite soccer players that may result in compromised sleep quantity and/or quality. Sleep is an essential part of the recovery process as it provides a number of important psychological and physiological functions. The effects of sleep disturbance on post-soccer match fatigue mechanisms and recovery time course are also described. Physiological and cognitive changes that occur when competing at night are often not conducive to sleep induction. Although the influence of high-intensity exercise performed during the night on subsequent sleep is still debated, environmental conditions (e.g., bright light in the stadium, light emanated from the screens) and behaviours related to evening soccer matches (e.g., napping, caffeine consumption, alcohol consumption) as well as engagement and arousal induced by the match may all potentially affect subsequent sleep. Apart from night soccer matches, soccer players are subjected to inconsistency in match schedules, unique team schedules and travel fatigue that may also contribute to the sleep debt. Sleep deprivation may be detrimental to the outcome of the recovery process after a match, resulting in impaired muscle glycogen repletion, impaired muscle damage repair, alterations in cognitive function and an increase in mental fatigue. The role of sleep in recovery is a complex issue, reinforcing the need for future research to estimate the quantitative and qualitative importance of sleep and to identify influencing factors. Efficient and individualised solutions are likely needed.

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Evidence of Disturbed Sleep and Increased Illness in Overreached Endurance Athletes

Abstract: This study confirms sleep disturbances and increased illness in endurance athletes who present with symptoms of F-OR during periods of high volume training.

Cited by 191 publications

References 34 publications

Predicting Self-Reported Illness for Professional Team-Sport Athletes

Predicting Self-Reported Illness for Professional Team-Sport Athletes

Evidence of disturbed sleep and mood state in well-trained athletes during short-term intensified training with and without a high carbohydrate nutritional intervention

Stress, Sleep and Recovery in Elite Soccer: A Critical Review of the Literature

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