Eleven subjects were used to determine if the exercise regimen of racquetball could be used as a heat stress acclimator. Core temperature, skin temperature, sweat production, and weight loss were recorded during a racquetball match. Skin and core temperatures were determined by using thermistors. Sweat was collected with modified stress electrodes. Weight loss was recorded by comparing nude weights at the beginning and end of a match. The results indicated that an hour of strenuous racquetball play caused a significant increase in core temperature with subsequent sweating which resulted in a significant decrease in skin temperature and weight loss. The exercise regimen of racquetball can act as a good heat stress acclimator because it produces sufficiently high levels of hyperthermia.
Morgans, Leland F. and Johnson, Alan M.
"Physiological Studies of Heat Stress Acclimation During a Specific Exercise Regimen,"
Journal of the Arkansas Academy of Science: Vol. 36
, Article 14.
Available at: http://scholarworks.uark.edu/jaas/vol36/iss1/14