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Precooling does not improve 2,000-m rowing performance of females in hot, humid conditions

Taylor, Lee, Mauger, Alexis R., Watkins, Samuel L, Fitch, Natalie, Brewer, John, Maxwell, Neil S, Webborn, Nick, Castle, Paul C (2014) Precooling does not improve 2,000-m rowing performance of females in hot, humid conditions. Journal of strength and conditioning research, 28 (12). pp. 3416-3424. ISSN 1533-4287. (doi:10.1519/JSC.0000000000000558) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:61025)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1519/JSC.0000000000000558

Abstract

Precooling lowers skin (Tsk) and core temperature (Tre) and can improve performance in hot conditions, but has predominantly been studied in males. This study investigated the effects of precooling on self-paced 2,000-m rowing performance, within females, in hot, humid conditions. Eight physically active females (19.9 ± 1.5 years, 66.8 ± 3.1 kg, 30.0 ± 5.0% body fat) performed 2,000-m rows in a randomized order within 3 conditions {control (CONT) (20° C, 40% relative humidity [RH]); hot (HOT) (35° C, 60% RH); precooling (PREC) (35° C, 60% RH, preceded by precooling)}. The precooling condition consisted of 20-minute precooling with a cold water shower, followed by a 2,000-m row. In contrast, CONT and HOT consisted of 20-minute passive rest in place of precooling. Tre, Tsk, and power output were recorded every 100 m of the rows. Muscle temperature (Tmu) was recorded at baseline, after 20-minute passive rest/precooling and post-row. No differences were observed between conditions for performance time (CONT, 8.89 ± 0.45 minutes; HOT, 9.01 ± 0.55 minutes; PREC, 8.87 ± 0.48 minutes; p = 0.42). Mean Tre during the row was not different between conditions (CONT, 37.8 ± 0.2° C; HOT, 37.7 ± 0.3° C; PREC, 37.5 ± 0.2° C; p = 0.12; main effect), although lower Tre was observed at 1,600 and 1,800 m in PREC compared with HOT (p ? 0.05). Tmu was significantly reduced after precooling (p = 0.03). Precooling did not enhance 2,000-m rowing performance, despite differences in Tre, Tsk, and Tmu. The lack of observed improvement in rowing performance after cold shower precooling may have been due to the short exercise time. An improvement in performance may have been observed using an alternate method of precooling, which has been shown to be ergogenic in other sports.

Item Type: Article
DOI/Identification number: 10.1519/JSC.0000000000000558
Divisions: Divisions > Division of Natural Sciences > School of Sport and Exercise Sciences
Depositing User: Lex Mauger
Date Deposited: 24 Mar 2017 14:38 UTC
Last Modified: 16 Feb 2021 13:44 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/61025 (The current URI for this page, for reference purposes)
Mauger, Alexis R.: https://orcid.org/0000-0001-6685-5800
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