Journal article
Changes in Core Temperature During an Elite Female Rugby Sevens Tournament
International Journal of Sports Physiology and Performance, Vol.15(4), pp.571-580
01/04/2020
PMID: 32023538
Metrics
18 Record Views
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Abstract
Purpose: To characterize player core temperature (Tc) across a World Rugby Women’s Sevens Series tournament day (WRWSS) and determine the efficacy of commonly employed cold-water-immersion (CWI) protocols. Methods: Tc was measured in 12 elite female rugby sevens athletes across 3 games (G1–3) from day 1 of the Sydney WRWSS tournament. Symptoms of exertional heat illness, perceptual scales, CWI details, playing minutes, external-load data (measured by global positioning systems), and wet-bulb globe temperature (range 18.5°C–20.1°C) were also collected. Linear mixed models and magnitude-based inferences were used to assess differences in Tc between periods (G1–3 and warm-ups [WU]). Results: Average Tc was “very likely” lower (effect size; ±90% confidence limit −0.33; ±0.18) in G1 than in G2. Peak Tc was “very likely” (0.71; ±0.28) associated with increased playing time. CWI did not remove the accumulated Tc due to WU and match-play activity (∼1°C–2°C rise in Tc still present compared with Tc at WU onset for players ≥6-min match play). Conclusions: Elite WRWSS athletes experienced high Tc during WU (Tc peak 37.9–39.0°C) and matches (Tc peak 37.9–39.8°C), a magnitude known to reduce intermittent high-intensity physical performance (≥39°C). The CWI protocol resulted in players (≥6-min match play) with ∼1°C to 2°C raised Tc compared with Tc at WU onset.
Details
- Title
- Changes in Core Temperature During an Elite Female Rugby Sevens Tournament
- Creators
- Mitchell J Henderson - University of Technology SydneyBryna C.R Chrismas - Qatar UniversityChristopher J Stevens - Southern Cross UniversityAaron J Coutts - University of Technology SydneyLee Taylor - University of Technology Sydney
- Publication Details
- International Journal of Sports Physiology and Performance, Vol.15(4), pp.571-580
- Publisher
- Human Kinetics, Inc.
- Grant note
- L.T. and coauthors thank the Aspire Zone Foundation (Doha, Qatar) for the funding and support to complete the project. Additional thanks go to BodyCap (Caen, France) for the loan of 12 e-Viewers (plus general technical and logistical support) to complete the project. M.J.H. was supported by the RTP scholarship (Australia) and a research scholarship from Rugby Australia for this project.
- Identifiers
- 991012925566002368
- Copyright
- © 2020 Human Kinetics, Inc.
- Academic Unit
- School of Health and Human Sciences; Human Sciences; Faculty of Health
- Language
- English
- Resource Type
- Journal article