Postexercise cooling interventions and the effects on exercise-induced heat stress in a temperate environment

Hausswirth, C; Duffield, R; Pournot, H; Bieuzen, F; Louis, J; Brisswalter, J; Castagna, O

Postexercise cooling interventions and the effects on exercise-induced heat stress in a temperate environment

Hausswirth, C Duffield, R

Pournot, H Bieuzen, F Louis, J Brisswalter, J Castagna, O

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Publication Type:: Journal Article
Citation:: Applied Physiology, Nutrition and Metabolism, 2012, 37 (5), pp. 965 - 975
Issue Date:: 2012-10-01

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Field	Value	Language
dc.contributor.author	Hausswirth, C	en_US
dc.contributor.author	Duffield, R https://orcid.org/0000-0002-5641-1314	en_US
dc.contributor.author	Pournot, H	en_US
dc.contributor.author	Bieuzen, F	en_US
dc.contributor.author	Louis, J	en_US
dc.contributor.author	Brisswalter, J	en_US
dc.contributor.author	Castagna, O	en_US
dc.date.issued	2012-10-01	en_US
dc.identifier.citation	Applied Physiology, Nutrition and Metabolism, 2012, 37 (5), pp. 965 - 975	en_US
dc.identifier.issn	1715-5312	en_US
dc.identifier.uri	http://hdl.handle.net/10453/23201
dc.description.abstract	The aim of this study was to examine the effects of cool water immersion (20 °C; CWI) while wearing a cooling jacket (Cryovest;V) and a passive control (PAS) as recovery methods on physiological and thermoregulatory responses between 2 exercise bouts in temperate conditions. Nine well-trained male cyclists performed 2 successive bouts of 45 min of endurance cycling exercise in a temperate environment (20 °C) separated by 25 min of the respective recovery interventions. Capillary blood samples were obtained to measure lactate (La -), sodium (Na +), bicarbonate (HCO3 -) concentrations and pH, whilst body mass loss (BML), core temperature (T core), skin temperature (T skin), heart rate (HR), oxygen uptake, and minute ventilation were measured before (Pre), immediately after the first exercise bout (Ex1), the recovery (R), and after the second exercise bout (Ex2). V and CWI both resulted in a reduction of T skin at R (-2.1 ± 0.01 °C and -11.6 ± 0.01 °C, respectively, p < 0.01). Despite no difference in final values post-Ex2 (p > 0.05), V attenuated the rise in HR, minute ventilation, and oxygen uptake from Ex1 to Ex2, while T core and T skin were significantly lower following the second session (p < 0.05). Further, CWI was also beneficial in lowering T core, T skin, and BML, while a rise in Na + was observed following Ex2 (p < 0.05). Overall results indicate that cooling interventions (V and CWI) following exercise in a temperate environment provide a reduction in thermal strain during ensuing exercise bouts.	en_US
dc.relation.ispartof	Applied Physiology, Nutrition and Metabolism	en_US
dc.relation.isbasedon	10.1139/H2012-077	en_US
dc.subject.classification	Sport Sciences	en_US
dc.subject.mesh	Humans	en_US
dc.subject.mesh	Heat Stress Disorders	en_US
dc.subject.mesh	Sodium	en_US
dc.subject.mesh	Lactic Acid	en_US
dc.subject.mesh	Pulmonary Ventilation	en_US
dc.subject.mesh	Exercise	en_US
dc.subject.mesh	Cross-Over Studies	en_US
dc.subject.mesh	Immersion	en_US
dc.subject.mesh	Oxygen Consumption	en_US
dc.subject.mesh	Body Temperature Regulation	en_US
dc.subject.mesh	Heart Rate	en_US
dc.subject.mesh	Time Factors	en_US
dc.subject.mesh	Bicycling	en_US
dc.subject.mesh	Clothing	en_US
dc.subject.mesh	Adult	en_US
dc.subject.mesh	Male	en_US
dc.subject.mesh	Athletic Performance	en_US
dc.subject.mesh	Cold Temperature	en_US
dc.subject.mesh	Young Adult	en_US
dc.subject.mesh	Athletes	en_US
dc.title	Postexercise cooling interventions and the effects on exercise-induced heat stress in a temperate environment	en_US
dc.type	Journal Article
utslib.citation.volume	5	en_US
utslib.citation.volume	37	en_US
utslib.for	1106 Human Movement and Sports Sciences	en_US
utslib.for	06 Biological Sciences	en_US
utslib.for	11 Medical and Health Sciences	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Health
pubs.organisational-group	/University of Technology Sydney/Faculty of Health/Sports and Exercise Science
pubs.organisational-group	/University of Technology Sydney/Strength - CHSP - Health Services and Practice
utslib.copyright.status	closed_access
pubs.issue	5	en_US
pubs.publication-status	Published	en_US
pubs.volume	37	en_US

Abstract:

The aim of this study was to examine the effects of cool water immersion (20 °C; CWI) while wearing a cooling jacket (Cryovest;V) and a passive control (PAS) as recovery methods on physiological and thermoregulatory responses between 2 exercise bouts in temperate conditions. Nine well-trained male cyclists performed 2 successive bouts of 45 min of endurance cycling exercise in a temperate environment (20 °C) separated by 25 min of the respective recovery interventions. Capillary blood samples were obtained to measure lactate (La -), sodium (Na +), bicarbonate (HCO3 -) concentrations and pH, whilst body mass loss (BML), core temperature (T core), skin temperature (T skin), heart rate (HR), oxygen uptake, and minute ventilation were measured before (Pre), immediately after the first exercise bout (Ex1), the recovery (R), and after the second exercise bout (Ex2). V and CWI both resulted in a reduction of T skin at R (-2.1 ± 0.01 °C and -11.6 ± 0.01 °C, respectively, p < 0.01). Despite no difference in final values post-Ex2 (p > 0.05), V attenuated the rise in HR, minute ventilation, and oxygen uptake from Ex1 to Ex2, while T core and T skin were significantly lower following the second session (p < 0.05). Further, CWI was also beneficial in lowering T core, T skin, and BML, while a rise in Na + was observed following Ex2 (p < 0.05). Overall results indicate that cooling interventions (V and CWI) following exercise in a temperate environment provide a reduction in thermal strain during ensuing exercise bouts.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/23201