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Effect of evening postexercise cold water immersion on subsequent sleep
Journal article   Peer reviewed

Effect of evening postexercise cold water immersion on subsequent sleep

Elisa Robey, Brian Dawson, Shona Halson, Warren Gregson, Stuart King, Carmel Goodman and Peter Eastwood
Medicine and science in sports and exercise, Vol.45(7), pp.1394-1402
2013
DOI: https://doi.org/10.1249/MSS.0b013e318287f321
PMID: 23377833
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Abstract

sleep architecture high-intensity exercise core temperature salivary melatonin
Purpose This study investigated the effect of cold water immersion after evening exercise on subsequent sleep quality and quantity in trained cyclists. Methods In the evenings (∼1900 h) on three separate occasions, male cyclists (n = 11) underwent either no exercise (control, CON), exercise only (EX), or exercise followed by cold water immersion (CWI). EX comprised cycling for 15 min at 75% peak power, then a 15-min maximal time trial. After each condition, a full laboratory-based sleep study (polysomnography) was performed. Core and skin temperature, heart rate, salivary melatonin, ratings of perceived fatigue, and recovery were measured in each trial. Results No differences were observed between conditions for any whole night sleep measures, including total sleep time, sleep efficiency, sleep onset latency, rapid eye movement onset latency, wake after sleep onset, or proportion of the night spent in different sleep stages. Core temperature in EX and CWI trials was higher than CON, until it decreased below that of EX and CON until bedtime in CWI. After bedtime, core temperature was similar for all conditions throughout the night, except for a 90-min period where it was lower for CWI than EX and CON (3.5–4.5 h postexercise). Heart rates for EX and CWI were both significantly higher than CON postexercise until bedtime, whereas skin temperature after CWI was significantly lower than EX and CON, remaining lower than EX until 3 h postexercise. Melatonin levels and recovery ratings were similar between conditions. Fatigue ratings were significantly elevated after exercise in both CWI and EX conditions, with EX still being elevated compared with CON at bedtime. Conclusion Whole night sleep architecture is not affected by evening exercise alone or when followed by CWI.

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Source: InCites

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26 Record Views
39 Times Cited - Web of Science

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
1 Clinical & Life Sciences
1.137 Sleep Science & Circadian Systems
1.137.349 Insomnia
Web Of Science research areas
Sport Sciences
ESI research areas
Clinical Medicine
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