Jackson Dennis1, Brian Dawson2, Jarryd Heasman3, Brent Rogalski3, Elisa Robey4. 1. School of Sport Science, Exercise and Health, The University of Western Australia, Australia; West Coast Eagles Football Club, Australia. Electronic address: jackson.dennis@hotmail.com. 2. School of Sport Science, Exercise and Health, The University of Western Australia, Australia; West Coast Eagles Football Club, Australia. 3. West Coast Eagles Football Club, Australia. 4. School of Sport Science, Exercise and Health, The University of Western Australia, Australia.
Abstract
OBJECTIVES: To examine the potential relationship between sleep duration and efficiency and injury incidence in elite Australian footballers. DESIGN: Prospective cohort study. METHODS: Australian footballers (n=22) from one AFL club were studied across the 2013 competitive season. In each week sleep duration and efficiency were recorded via actigraphy for 5 nights (the 3 nights preceding a game, the night of the game and the night after the game). Injury incidence was monitored and matched with sleep data: n=9 players suffered an injury that caused them to miss a game. Sleep in the week of the injury (T2) was compared to the average of the previous 2 weeks (T1). A two-way repeated measures ANOVA was used to determine any effect of sleep duration and efficiency on injury. Significance was accepted at p<0.05. RESULTS: Injury incidence was not significantly affected by sleep duration, sleep efficiency or a combination of these factors. Analysis of individual nights for T2 versus T1 also showed no differences in sleep quality or efficiency. However, a main effect for time was found for sleep duration and efficiency, with these being slightly, but significantly greater (p<0.05) at T2 (437±61min and 82±7%) than T1 (414±64min and 79±7%). CONCLUSIONS: No significant effect of sleep duration and efficiency on injury occurrence was found in elite Australian footballers.
OBJECTIVES: To examine the potential relationship between sleep duration and efficiency and injury incidence in elite Australian footballers. DESIGN: Prospective cohort study. METHODS: Australian footballers (n=22) from one AFL club were studied across the 2013 competitive season. In each week sleep duration and efficiency were recorded via actigraphy for 5 nights (the 3 nights preceding a game, the night of the game and the night after the game). Injury incidence was monitored and matched with sleep data: n=9 players suffered an injury that caused them to miss a game. Sleep in the week of the injury (T2) was compared to the average of the previous 2 weeks (T1). A two-way repeated measures ANOVA was used to determine any effect of sleep duration and efficiency on injury. Significance was accepted at p<0.05. RESULTS: Injury incidence was not significantly affected by sleep duration, sleep efficiency or a combination of these factors. Analysis of individual nights for T2 versus T1 also showed no differences in sleep quality or efficiency. However, a main effect for time was found for sleep duration and efficiency, with these being slightly, but significantly greater (p<0.05) at T2 (437±61min and 82±7%) than T1 (414±64min and 79±7%). CONCLUSIONS: No significant effect of sleep duration and efficiency on injury occurrence was found in elite Australian footballers.
Authors: Ran Yan; Mandy Murphy; Angela Genoni; Evania Marlow; Ian C Dunican; Johnny Lo; Lesley Andrew; Amanda Devine; Claus T Christophersen Journal: BMJ Open Gastroenterol Date: 2020-08
Authors: João Gustavo Claudino; Tim J Gabbet; Helton de Sá Souza; Mário Simim; Peter Fowler; Diego de Alcantara Borba; Marco Melo; Altamiro Bottino; Irineu Loturco; Vânia D'Almeida; Alberto Carlos Amadio; Julio Cerca Serrão; George P Nassis Journal: BMJ Open Sport Exerc Med Date: 2019-01-13