Abstract
This study aimed to examine the variation of environmental temperature in a gymnasium without air conditioning from July to September 2023, and heat stroke by college female basketball in a gymnasium without air conditioning from June to September 2023. Monthly temperatures and WBGT showed no change at high levels from late July to mid-August and began to decline in late August. Conversely, humidity increased from late July to mid-September and decreased in late September. In addition, it is considered that gymnasiums without airconditioning equipment are environments with a high risk of heat stroke because maximum temperatures from late July to mid-September exceeded the level for exercise stops. The number of Heat Stroke cases by position was 17 for guards, 11 for forwards, and 2 in centers, and it was suggested that position may be related to the occurrence of heat stroke. Basketball is a sport with a high risk of heat stroke, and there is a limit to preventing heat stroke by fluid intake because there is no timing for fluid intake during the game. Therefore, in environments where airconditioning equipment is not available, it is necessary to design practice plans flexibly and strictly prepare for the heat.