Effects of the Removal of Electronic Devices for 48 Hours on Sleep in Elite Judo Athletes

Ian C Dunican; David T Martin; Shona L Halson; Reid James Reale; Brian T Dawson; John A Caldwell; Maddison J Jones; Peter R Eastwood

doi:10.1519/JSC.0000000000001697

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Effects of the Removal of Electronic Devices for 48 Hours on Sleep in Elite Judo Athletes

Journal article

Peer reviewed

Effects of the Removal of Electronic Devices for 48 Hours on Sleep in Elite Judo Athletes

Ian C Dunican, David T Martin, Shona L Halson, Reid James Reale, Brian T Dawson, John A Caldwell, Maddison J Jones and Peter R Eastwood

Journal of strength and conditioning research, Vol.31(10), pp.2832-2839

2017

DOI: https://doi.org/10.1519/JSC.0000000000001697

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Abstract

cognitive performance

physical performance

combat sports

actigraphy

This study examined the effects of evening use of electronic devices (i.e., smartphones, etc.) on sleep quality and next-day athletic and cognitive performance in elite judo athletes. Over 6 consecutive days and nights, 23 elite Australian judo athletes were monitored while attending a camp at the Australian Institute of Sport (AIS). In 14 athletes, all electronic devices were removed on days 3 and 4 (i.e., for 48 hours: the "device-restricted group"), whereas 9 were permitted to use their devices throughout the camp (the "control group"). All athletes wore an activity monitor (Readiband) continuously to provide measures of sleep quantity and quality. Other self-reported (diary) measures included time in bed, electronic device use, and rate of perceived exertion during training periods. Cognitive performance (Cogstate) and physical performance (single leg triple hop test) were also measured. When considering night 2 as a "baseline" for each group, removal of electronic devices on nights 3 and 4 (device-restricted group) resulted in no significant differences in any sleep-related measure between the groups. When comparing actigraphy-based measures of sleep to subjective measures, all athletes significantly overestimated sleep duration by 58±85 minutes (p = 0.001) per night and underestimated time of sleep onset by 37±72 minutes (p = 0.001) per night. No differences in physical or cognitive function were observed between the groups.

Details

Title: Effects of the Removal of Electronic Devices for 48 Hours on Sleep in Elite Judo Athletes
Authors: Ian C Dunican (Author) - University of Western Australia
David T Martin (Author) - Australian Institute of Sport
Shona L Halson (Author) - Australian Institute of Sport
Reid James Reale (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Brian T Dawson (Author) - University of Western Australia
John A Caldwell (Author) - Coastal Performance Consulting
Maddison J Jones (Author) - University of Western Australia
Peter R Eastwood (Author) - University of Western Australia
Publication details: Journal of strength and conditioning research, Vol.31(10), pp.2832-2839
Publisher: Lippincott Williams & Wilkins
Date published: 2017
DOI: 10.1519/JSC.0000000000001697
ISSN: 1064-8011
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy
Language: English
Record Identifier: 99451041002621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Sport Sciences

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