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Can ten days of heat acclimation training improve temperate-condition rowing performance in national-level rowers?

Citation

Philp, CP and Pitchford, NW and Visentin, DC and Kitic, CM and Fell, JW and Buchheit, M, Can ten days of heat acclimation training improve temperate-condition rowing performance in national-level rowers?, PLoS ONE, 17, (9) Article 0273909. ISSN 1932-6203 (2022) [Refereed Article]


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Copyright Statement

Copyright: 2022 Philp et al. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License, (https://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited

DOI: doi:10.1371/journal.pone.0273909

Abstract

This study investigated whether heat acclimation (HA) could improve rowing performance in temperate conditions in national-level rowers. Using a parallel-group design, eleven rowers (3 female, 8 male, age: 213 years, height: 182.36.8cm, mass: 79.29.0kg, VO2peak: 61.45.1mlkgmin-1) completed either a HA intervention (HEAT, n = 5) or acted as controls (CON, n = 6). The intervention replaced usual cross-training sessions and consisted of an hour of submaximal cycling or rowing ergometry in either 340C for HEAT or 141C for CON daily over two five-day blocks (10 sessions total), separated by 72h. Participants performed the 10+4 test that consists of 10-min submaximal rowing and a 4-min time-trial (TT) in temperate conditions (200C) before and after the intervention. Heat acclimation following the 10-session intervention was evidenced by large significant (p<0.05) decreases in maximum tympanic temperature (d = -1.68) and rate of perceived exertion (RPE) (d = -2.26), and a large significant increase in sweat loss (d = 0.91). Large non-significant (p>0.05) decreases were seen in average tympanic temperature (d = -3.08) and average heart rate (d = -1.53) in HEAT from session 2 to session 10 of the intervention. Furthermore, a large significant increase was seen in plasma volume (d = 3.74), with large significant decreases in haemoglobin concentration (d = -1.78) and hematocrit (d = -12.9). Following the intervention, large non-significant increases in respiratory exchange ratio (d = 0.87) and blood lactate (d = 1.40) as well as a large non-significant decrease in RPE (d = -1.23) were seen in HEAT during the 10-min submaximal rowing. A large significant decrease in peak heart rate (d = -2.27), as well as a large non-significant decrease in relative VO2peak (d = -0.90) and large non-significant increases in respiratory exchange ratio (d = 1.18), blood lactate concentration (d = 1.25) and power output (d = 0.96) were seen in HEAT during the 4-min TT. This study suggests that a 10-session HA intervention may elicit HA in national-level rowers, with potential to improve 4-min TT performance in temperate conditions.

Item Details

Item Type:Refereed Article
Keywords:environmental physiology, endurance, plasma volume, VO2, exercise performance
Research Division:Health Sciences
Research Group:Sports science and exercise
Research Field:Exercise physiology
Objective Division:Culture and Society
Objective Group:Sport, exercise and recreation
Objective Field:Organised sports
UTAS Author:Philp, CP (Mr Calvin Philp)
UTAS Author:Pitchford, NW (Dr Nathan Pitchford)
UTAS Author:Visentin, DC (Dr Denis Visentin)
UTAS Author:Kitic, CM (Dr Cecilia Kitic)
UTAS Author:Fell, JW (Associate Professor James Fell)
ID Code:153095
Year Published:2022
Deposited By:Health Sciences
Deposited On:2022-09-06
Last Modified:2022-12-06
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