The present study was to investigate the changes of exercise performance ability during exercise and recovery at different
external environmental temperature. The subjects of the study were 12 students from D University who did not have an
particular clinical disease. In the experiment, blood was collected after exercise, the subjects had warming up excercise and
then 30minutes exercise at low temperature(5±0.5℃), room temperature(20±0.5℃) and high temperature(33±0.5℃) using protocol
obtained from a preliminary experiment. During the exercise, respiration variables were measured at exercise performance
ability such as oxygen uptake(VO2), maximum heart rate(HRmax), respiratory exchage ratio(RER) and anaerobic threshold(AT)
were also measured using pulmonary exercise test system. They blood was collecte at 5minutes after exercise, and the lactic
acid concentration of blood, which is a exercise performance ability was measured and analyzed. In data analysis, the means
and standard deviations of exercise performance ability according to external environmental temperature were collected and
analyzed by one way ANOVA with repeated measure and post-hoc using Tukey. A significant level was considered as p<.05.
The results were as follows; First, among exercise performace ability during exercise, oxygen uptake(VO2), maximum heart
rate(HRmax), respiratory exchange ratio(RER), 5minutes' recovery lactic acid showed a significant difference at high
temperature. But anaerobic threshold(AT) did not show any significant difference according to external environmental
temperature.