Sleep, Recovery, and Performance: The New Frontier in High-Performance Athletics
Section snippets
Sleep requirement (total sleep time)
There is great interest and debate over the optimum amount of sleep (sleep length) required for humans to recuperate and function normally. Van Dongen and colleagues [2] have shown a dose-response relationship between hours of sleep deprivation and decline in cognitive function using the psychomotor vigilance task. Although a research subject's performance was relatively stable over the course of the experiment, there were significant differences among subjects in their responses to the
Case 1
A 19-year-old male university swimmer presented with a 3-year history of increasing fatigue and inability to tolerate standard training volume and intensity, following a prolonged viral illness. The sleep history was significant for a lifetime of light nonrestorative sleep and intermittent violent myoclonic jerking in sleep. Teammates would not share a room with him because of his habit of banging the wall throughout the night. His mother reported an occasion when the athlete was sleeping in
A pilot study of sleep quality and circadian sleep phase in competitive athletes
In an effort to determine the prevalence of poor sleep quality, circadian sleep phase preference, and possible sleep disorders in a spectrum of competitive athletes, a pilot survey of two groups of athletes was performed. The preliminary results of this pilot project are discussed below.
Summary
A pilot study of sleep quality and circadian sleep phase in two groups of competitive athletes spanning the lifecycle of a typical athlete, from adolescence to adulthood, suggests that the prevalence of poor sleep quality is substantial. The author's hypothesis that a delayed sleep phase (evening type), a common phenomenon in adolescence, would be prevalent in this population was not upheld. Improved sleep screening and case detection is necessary to address the concerns of athletes, parents,
Acknowledgments
The author acknowledges the assistance of the National Sport School and Bobsleigh Canada Skeleton of Calgary, Alberta, Canada.
References (19)
- et al.
Impact of sleep debt on metabolic and endocrine function
Lancet
(1999) Physiologic regulation in sleep
- et al.
Chronic insomnia and the stress system
Sleep Medicine Clinics
(2007) - et al.
Molecular genetic basis for mammalian circadian rhythms
- et al.
PER3 polymorphism predicts sleep structure and waking performance
Curr Biol
(2007) Upper airway resistance syndrome
Sleep Medicine Clinics
(2006)- et al.
The Pittsburgh Sleep Quality Index: a new instrument for psychiatric practice and research
Psychiatry Res
(1989) - et al.
Sport chronobiolgoy consultation: from the lab to the arena
Sports chronobiology. Clinics sports medicine
(2005) - et al.
Systematic interindividual differences in neurobehavioral impairment from sleep loss: evidence of trait-like differential vulnerability
Sleep
(2004)