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AuthorHenderson, Mitchell J.
AuthorChrismas, Bryna C.R.
AuthorFransen, Job
AuthorCoutts, Aaron J.
AuthorTaylor, Lee
Available date2024-05-27T08:45:05Z
Publication Date2022-03-18
Publication NameInternational Journal of Sports Physiology and Performance
CitationHenderson, M. J., Chrismas, B. C., Fransen, J., Coutts, A. J., & Taylor, L. (2022). Responses to a 5-day sport-specific heat acclimatization camp in elite female rugby sevens athletes. International journal of sports physiology and performance, 17(6), 969-978.
AbstractPurpose: To describe the physiological (resting core temperature, exercising heart rate, and sweat rate) and psychophysical (rating of perceived exertion, thermal sensation, and thermal comfort) responses to a short-term heat acclimatization (HA) training camp in elite female rugby sevens athletes. Methods: Nineteen professional female rugby sevens athletes participated in a 5-day HA camp in Darwin, Australia (training average: 32.2°C and 58% relative humidity). Training involved normal team practice prescribed by appropriate staff. Markers of physiological and psychophysical adaptations to HA were collected at various stages during the camp. Partial eta-squared effect sizes (from linear mixed-effects models), rank-biserial correlations (from Freidman tests), and P values were used to assess changes across the protocol. Results: Resting core temperature did not significantly change. Exercising heart rate showed a large and significant reduction from day 1 to day 5 (175 [13] vs 171 [12] beats·min-1), as did sweat rate (1.1 [0.3] vs 1.0 [0.2] L·h–1). Thermal sensation showed a large and significant reduction between day 1 and day 5 (median [interquartile range] = 5 [5–5.5] vs 4.5 [4–5]). Changes in rating of perceived exertion and thermal comfort were unclear. Conclusions: Beneficial cardiovascular adaptations were observed simultaneously across a full squad of elite female rugby sevens players (without expensive facilities/equipment or modifying training content). However, beneficial changes in resting core temperature, sweat rate, and thermal/effort perceptions likely require a greater thermal impulse. These data contribute to the development of evidence-informed practice for minimal effective HA doses in female team-sport athletes, who are underrepresented in the current research.
PublisherHuman Kinetics Publishers Inc.
Subjectcore temperature
heat acclimation
TitleResponses to a 5-Day Sport-Specific Heat Acclimatization Camp in Elite Female Rugby Sevens Athletes
Issue Number6
Volume Number17

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