Thermal demand during an outdoor amateur basketball match
DOI:
https://doi.org/10.34188/bjaerv9n2-176Palavras-chave:
exercise, health, environment, heat, basketballResumo
Significant increases in solar radiation incidence and the average Earth temperature have been recorded in recent decades. Therefore, physical and sports activities performed outdoors increase thermal stress and the risk of heat-related disorders and illnesses (hyperthermia), especially in temperate and tropical climates, such as in Brazil. Thus, the objective of this study is to report the thermoregulatory responses during an outdoor basketball match. Ten amateur basketball players will participate in 40-minute-match, starting at 2:00 pm, on outdoor court. Before, at the end of each quarter, and after the match, tympanic temperature, heart rate, and environmental thermal stress (WBGT) were measured. Sweating rate was calculated by the difference in body weight before and after the matches. Generalized estimating equations technique was used to compare dependent variables among the match quarters. The significance level for statistical difference was p < .05. The match present WBGT presented mean of 25.8 ± 1.4 °C. Players sweat rate presented mean of 21.2 ± 3.0 g/min. The tympanic temperature was higher at the end of the third quarter compared to the pre-match period (p< .001). The heart rate was higher in all quarters compared to the pre-match period (p< .001). Playing basketball outdoors, under the sun, increases thermoregulatory demand and the risk of heat-related disorders.
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