Limiting Rise in Heat Load With an Ice Vest During Elite Female Rugby Sevens Warm-Ups
Author | Henderson, Mitchell J. |
Author | Chrismas, Bryna C.R. |
Author | Stevens, Christopher J. |
Author | Fransen, Job |
Author | Coutts, Aaron J. |
Author | Taylor, Lee |
Available date | 2024-05-29T10:58:37Z |
Publication Date | 2021-05-21 |
Publication Name | International Journal of Sports Physiology and Performance |
Identifier | http://dx.doi.org/10.1123/ijspp.2020-0833 |
Citation | Henderson, M. J., Chrismas, B. C., Stevens, C. J., Fransen, J., Coutts, A. J., & Taylor, L. (2021). Limiting rise in heat load with an ice vest during elite female rugby sevens warm-ups. International journal of sports physiology and performance, 16(11), 1684-1691. |
ISSN | 1555-0265 |
Abstract | Purpose: To determine the effect of wearing a phase-change cooling vest in elite female rugby sevens athletes during (1) a simulated match-day warm-up in hot conditions prior to a training session and (2) a prematch warm-up during a tournament in cool conditions. Methods: This study consisted of 2 randomized independent group designs (separated by 16 d) where athletes completed the same 23- to 25-minute match-day warm-up (1) in hot conditions (range = 28.0°C to 35.1°C wet bulb globe temperature [WBGT]) prior to training and (2) in cool conditions (range = 18.8°C to 20.1°C WBGT) prior to a World Rugby Women’s Sevens Series match. In both conditions, athletes were randomly assigned to wearing either (1) the standardized training/playing ensemble (synthetic rugby shorts and training tee/jersey) or (2) the standardized training/playing ensemble plus a commercial phase-change athletic cooling vest. Group-wise differences in core temperature rise from baseline, global positioning system–measured external locomotive output, and perceptual thermal load were compared. Results: Core temperature rise during a match warm-up was lower in the hot condition only (-0.65°C [95% confidence interval = -1.22°C to -0.08°C], η2p = .23 [95% confidence interval = .00 to .51], P = .028). No differences in various external-load variables were observed. Conclusions: Phase-change cooling vests can be worn by athletes prior to, and during, a prematch warm-up in hot conditions to limit excess core temperature rise without adverse effects on thermal perceptions or external locomotion output. |
Sponsor | This work was funded by: - Aspire Zone Foundation, Doha, Qatar. - The RTP scholarship (Australia) - Rugby Australia |
Language | en |
Publisher | Human Kinetics Publishers Inc. |
Subject | core temperature intermittent sport precooling team sport |
Type | Article |
Pagination | 1684-1691 |
Issue Number | 11 |
Volume Number | 16 |
ESSN | 1555-0273 |
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