Effect of precooling and acclimation on repeat-sprint performance in heat
MetadataShow full item record
This study determined whether precooling would have an additive effect on repeat-sprint cycling performance in heat following partial acclimation. Ten males completed three trials; Pre Acclimation (Pre Acc) and two Post Acclimation trials, one with precooling (ice jacket and slushy; Post Acc +PC) and another without (Post Acc). Trials consisted of a 30-min baseline period followed by a 70-min repeat-sprint protocol in ~35°C and 60% relative humidity. Separating pre and post trials were five heat acclimation sessions. Although no significant differences were found for performance variables, inferential statistical analysis resulted in moderate effect sizes, which suggested more work (J · kg-1) was performed in Post Acc compared with Pre Acc. Further, 'possible' and 'very likely' benefits were found for every performance variable for Post Acc compared with Pre Acc, while 'possible' benefits were found for Post Acc, compared with Post Acc +PC, for peak power output (W and W · kg-1). Moderate to strong effect sizes suggested lower core temperatures in both post acclimation trials compared with Pre Acc. Sweat loss was significantly higher (P < 0.05; 23.1%) in Post Acc +PC compared to other trials. In conclusion, no additional performance enhancement was seen when partially acclimated individuals precooled prior to repeat-sprint performance in heat. © 2013 Copyright Taylor and Francis Group, LLC.
Showing items related by title, author, creator and subject.
Effect of pre-cooling on repeat-sprint performance in seasonally acclimatised males during an outdoor simulated team-sport protocol in warm conditionsBrade, Carly; Dawson, B.; Wallman, K. (2013)Whether precooling is beneficial for exercise performance in warm climates when heat acclimatised is unclear. The purpose of this study was to determine the effect of precooling on repeatsprint performance during a simulated ...
Brade, Carly; Dawson, B.; Wallman, K. (2014)This study aimed to compare the simultaneous use of internal and external precooling methods with singular methods and their effect on repeated sprint cycling in hot/humid conditions. Twelve male team sport players completed ...
Ducker, Kagan; Dawson, Brian; Wallman, Karen (2013)This study aimed to investigate if combining beta alanine (BA) and sodium bicarbonate (NaHCO3) supplementation could lead to enhanced repeated-sprint performance in team-sport athletes, beyond what is possible with either ...