The influence of circadian phase and prior wake on neuromuscular function

Chronobiology International
Charli SargentGregory D Roach

Abstract

Previous forced desynchrony (FD) studies have shown that neurobehavioral function is affected by circadian phase and duration of prior wakefulness. There is some evidence that neuromuscular function may also be affected by circadian phase and prior wake, but these effects have not been systematically investigated. This study examined the effects of circadian phase and prior wake on two measures of neuromuscular function--postural balance (PB) and maximal grip strength (MGS)--using a 28-h FD protocol. Eleven male participants (mean +/- SD: 22.7 +/- 2.5 yr) lived in a sound-attenuated, light- and temperature-controlled time-isolation laboratory for 12 days. Following two training days and a baseline day, participants were scheduled to seven 28-h FD days, with the ratio between sleep opportunity and wake spans kept constant (i.e., 9.3 h sleep period and 18.7 h wake period). PB was measured during 1 min of quiet standing on a force platform. MGS of the dominant hand was measured using a dynamometer. These two measures were obtained every 2.5 h during wake. Core body temperature was continuously recorded with rectal thermistors to determine circadian phase. For both measures of neuromuscular function, individual data points were ass...Continue Reading

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Feb 13, 2009·Chronobiology International·Clement BougardAntoine Gauthier
Apr 11, 2009·Chronobiology International·Isabelle JasperJoachim Hermsdorfer

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Citations

Jul 24, 2012·Experimental Brain Research·Simon S SmithGraham K Kerr
Jan 18, 2012·Accident; Analysis and Prevention·Georgina HeathCharli Sargent
Jan 18, 2012·Accident; Analysis and Prevention·Charli SargentGregory D Roach
Jan 18, 2012·Accident; Analysis and Prevention·Sally A FergusonGregory D Roach
Jan 18, 2012·Accident; Analysis and Prevention·Raymond W MatthewsGregory D Roach
Nov 14, 2014·Emergency Medicine Australasia : EMA·Yi Han ChengRenee Ma Petrilli
Sep 10, 2014·The Biochemical Journal·Michal Dudek, Qing-Jun Meng
May 25, 2012·Chronobiology International·Charli SargentGregory D Roach
May 25, 2012·Chronobiology International·Raymond W MatthewsGregory D Roach
Apr 30, 2015·Applied Physiology, Nutrition, and Metabolism = Physiologie Appliquée, Nutrition Et Métabolisme·Robert JeffersStuart Goodall
Apr 21, 2016·Chronobiology International·Anastasi KosmadopoulosGregory D Roach
Jul 6, 2017·Journal of Sports Sciences·Costas ChryssanthopoulosMaria Maridaki
Mar 21, 2018·Chronobiology International·Samuel A PullingerBen J Edwards
Dec 27, 2018·Chronobiology International·Samuel PullingerBen J Edwards
Jul 16, 2020·Chronobiology International·N BessotA Gauthier
Aug 17, 2019·Frontiers in Physiology·Gregory D Roach, Charli Sargent
May 19, 2019·Sports Medicine·Clementine GrandouSimon Burley
Nov 6, 2020·International Journal of Sports Physiology and Performance·Peter M FowlerRob Duffield

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