The validity of activity monitors for measuring sleep in elite athletes

Journal of Science and Medicine in Sport
Charli SargentGregory D Roach

Abstract

There is a growing interest in monitoring the sleep of elite athletes. Polysomnography is considered the gold standard for measuring sleep, however this technique is impractical if the aim is to collect data simultaneously with multiple athletes over consecutive nights. Activity monitors may be a suitable alternative for monitoring sleep, but these devices have not been validated against polysomnography in a population of elite athletes. Participants (n=16) were endurance-trained cyclists participating in a 6-week training camp. A total of 122 nights of sleep were recorded with polysomnography and activity monitors simultaneously. Agreement, sensitivity, and specificity were calculated from epoch-for-epoch comparisons of polysomnography and activity monitor data. Sleep variables derived from polysomnography and activity monitors were compared using paired t-tests. Activity monitor data were analysed using low, medium, and high sleep-wake thresholds. Epoch-for-epoch comparisons showed good agreement between activity monitors and polysomnography for each sleep-wake threshold (81-90%). Activity monitors were sensitive to sleep (81-92%), but specificity differed depending on the threshold applied (67-82%). Activity monitors underes...Continue Reading

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Citations

Apr 21, 2016·Chronobiology International·Anastasi KosmadopoulosGregory D Roach
Aug 31, 2016·European Journal of Sport Science·Emer Van RyswykNick A Antic
Jun 7, 2017·European Journal of Sport Science·Johnpaul CaiaVincent G Kelly
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