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The Impact of sleep-Wake Behaviour on Tennis Match Performance in Junior State Grade Tennis Players

Journal of Science in Sport and Exercise 2023年第2期5卷 156-166页

作者： Mitchell Turner Philipp Beranek Ian C.Dunican Travis Cruickshank School of Medical and Health Sciences Edith Cowan University270 Joondalup DrivePerthWA 6027Australia Centre for sleep Science School of Human SciencesThe University of Western AustraliaPerthWA 6009Australia Centre for Precision Health School of Medical and Health SciencesEdith Cowan UniversityPerthAustralia Perron Institute for Neurological and Translational Sciences PerthAustralia

Purpose To date,no study has investigated the extent to which sleep-wake behaviour(SWB)influences match performance in junior tennis players.This study aimed to assess the influence of SWB for the week and night before on match performance,particularly match analytics and activity.Methods This study recruited 10 junior state grade tennis players who wore an actigraphy device and completed a sleep diary for the week before their match on two separate occasions throughout their competition season.Players wore a global positioning system device to track their movement during matches,and an experienced tennis coach recorded players'match analytics.Results This study showed that the sleep fragmentation index was significantly lower the week before matches in females who had won than those who had lost.Additionally,the sleep fragmentation index was significantly lower the night before a given match than the week before.Only sleep fragmentation index and sleep latency significantly influenced match performance in junior tennis players.The percentage of second serves points won differed between match wins and losses for male players,while winners and forced errors differed for female players.Conclusion These findings provide a detailed profile of tennis match play in junior state grade players.Despite individual differences,reduced restlessness the night before a match coincides with increased match performance.

关键词： sleep fragmentation Tennis analytics Global positioning system sleep quality sleep duration

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sleep disorders in Alzheimer’s disease:the predictive roles and potential mechanisms

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Neural Regeneration Research 2021年第10期16卷 1965-1972页

作者： Huang Kuang Yu-Ge Zhu Zhi-Feng Zhou Mei-Wen Yang Fen-Fang Hong Shu-Long Yang Department of Physiology College of MedicineNanchang UniversityNanchangJiangxi ProvinceChina Department of Nurse Nanchang University HospitalNanchangJiangxi ProvinceChina Department of Experimental Teaching Center Nanchang UniversityNanchangJiangxi ProvinceChina

sleep disorders are common in patients with Alzheimer’s disease,and can even occur in patients with amnestic mild cognitive impairment,which appears before Alzheimer’s disease.sleep disorders further impair cognitive function and accelerate the accumulation of amyloid-βand tau in patients with Alzheimer’s disease.At present,sleep disorders are considered as a risk factor for,and may be a predictor of,Alzheimer’s disease development.Given that sleep disorders are encountered in other types of dementia and psychiatric conditions,sleep-related biomarkers to predict Alzheimer’s disease need to have high specificity and sensitivity.Here,we summarize the major Alzheimer’s disease-specific sleep changes,including abnormal non-rapid eye movement sleep,sleep fragmentation,and sleep-disordered breathing,and describe their ability to predict the onset of Alzheimer’s disease at its earliest stages.Understanding the mechanisms underlying these sleep changes is also crucial if we are to clarify the role of sleep in Alzheimer’s disease.This paper therefore explores some potential mechanisms that may contribute to sleep disorders,including dysregulation of the orexinergic,glutamatergic,andγ-aminobutyric acid systems and the circadian rhythm,together with amyloid-βaccumulation.This review could provide a theoretical basis for the development of drugs to treat Alzheimer’s disease based on sleep disorders in future work.

关键词： Alzheimer’s disease amyloid-βaccumulation circadian rhythm GABAergic system glutamatergic system non-rapid eye movement sleep orexinergic system sleep disorders sleep fragmentation sleep-disordered breathing

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