Abstract
The purpose of this study was to investigate factors related to the radial bone mineral density (RBMD) in 37 collegiate women. The RBMD showed significant positive correlations with the body height and weight, waist and hip cicumferences, percentage of body fat, lean body mass, grip strength and physical activity during junior high school. When the subjects were divided into tertiles based on the body height and weight, waist and hip cicumferences, precentage of body fat, lean body mass, and grip strength, the groups which had higher mean values in these parameters showed the higher RBMD than the lower groups. The physical activity during junior high school was divided into 2 groups as active or sedentary, the active group had higher mean values in RBMD than the sedentary group. These results indicate that the RBMD was more related to the grip strength, physical activity during the junior high school and physique than serum reproductive hormones or calcium intake in this subject group.