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Novel Insights into Heat Acclimation by Post-Exercise Hot Water Immersion.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Novel Insights into Heat Acclimation by Post-Exercise Hot Water Immersion./
作者:	McIntyre, Robert D. .
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	166 p.
附註:	Source: Dissertations Abstracts International, Volume: 83-09, Section: B.
Contained By:	Dissertations Abstracts International83-09B.
標題:	Physiology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28974480
ISBN:	9798780650928

Novel Insights into Heat Acclimation by Post-Exercise Hot Water Immersion.
McIntyre, Robert D. .

Novel Insights into Heat Acclimation by Post-Exercise Hot Water Immersion. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 166 p.

Source: Dissertations Abstracts International, Volume: 83-09, Section: B.

Thesis (Ph.D.)--Bangor University (United Kingdom), 2021.

This item must not be sold to any third party vendors.

Hot environmental conditions can reduce exercise performance, work productivity, and increase the risk of exertional heat illness. In preparation for competing or working in the heat, athletes, military personnel, and occupational workers who reside in temperate conditions are advised to heat acclimate to alleviate thermal strain and improve physical capabilities. Conventional exercise heat acclimation protocols can be costly, impractical, and ineffective over short durations. Six days of post-exercise hot water immersion presents an alternative heat acclimation strategy that provides thermal adaptations and improvements in endurance performance. However, direct comparisons between short- (≤7 exposures) and medium-term (8-14 exposures) post-exercise hot water immersion and exercise heat acclimation are yet to be made. Further, previous findings are limited to the effects of 6 days of post-exercise hot water immersion, hence, the temporal patterning of adaptation is unknown. Finally, the mechanism(s) for the achieved thermal benefits after heat acclimation requires elucidation. Previous literature suggests that the reduction in core temperature after heat acclimation may be associated with changes in circulating thyroid hormones; however, research is required to confirm this. Therefore, the aims of this thesis were to compare thermal adaptations after shortand medium-term post-exercise hot water immersion with exercise heat acclimation and thermoneutral exercise, establish whether shortening the 6-day post-exercise hot water immersion intervention provides meaningful adaptations and whether extending it achieves a more complete state of heat acclimation, and to investigate the relationship between thermal adaptations and changes in plasma thyroid hormone concentrations after heat acclimation. We demonstrated that compared with conventional short-term exercise heat acclimation, 6 days of post-exercise hot water immersion elicited larger thermal adaptations, observable after 3 days. Extending the 6-day post-exercise hot water immersion intervention to 12 days provided no further thermal benefits or improvements in endurance capacity. Medium-term post-exercise hot water immersion conferred a more complete heat acclimation than exercise heat acclimation and thermoneutral exercise. Short- and medium-term heat acclimation by postexercise hot water immersion and exercise heat acclimation was partly associated with changes in thyroid hormone concentrations. However, temporal and intervention disconnects between thermal adaptations and thyroid hormones changes indicate that changes in thyroid hormones are not the mechanism for short- and medium-term heat acclimation adaptation.

ISBN: 9798780650928Subjects--Topical Terms:

518431
Physiology.

Novel Insights into Heat Acclimation by Post-Exercise Hot Water Immersion.
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