The purpose of this study was to determine the effects of dance wear on body composition of modern dance club members of women's university, 33 subjects were divided into 4 groups;
　　　A group-leotard, tights, sauna jackets, sauna pants
　　　B group-leotard, tights, sauna pants
　　　C group-leotard, tights, vinylidene chloride film
　　　D group-leotard, tights
　All subjects participated in 90min of modern dance lesson at 3.51-6.12 RMR for 5days.
　Body composition were measured before and after each lesson and after each lesson they answered a questionnaire about body condition during dance lesson.
　Obtained results were as follows, all values of body composition except one part were decreased. And there was significantly different of the rate of loosing weight between groups of wearing sauna wear and those of not wearing sauna wear. The group of wearing sauna pants showed high rate of decrease in many part of body. Considering above effects and the result of questionnaires, greater pressure was felt and less effect was produced on changes of body composition in wearing sauna jacket and pants, as compared with wearing sauna pants.
　It is inferred that leotard, tights and sauna pants are desirable for the lesson expecting the effect of loosing weight.

DESCENTE SPORTS SCIENCE Vol.8/THE DESCENTE AND ISHIMOTO MEMORIAL FOUNDATION FOR THE PROMOTION SPORTS SCIENCE