신체적 특성, 근력, 그리고 골밀도간의 관계

Study of the relationships between physical characteristics, muscle strength, and bone mineral densities in young women

This study was performed in order to obtain the basic data for the relationship between physical characteristics, body composition, and local bone mineral densities in young women. The subjects were volunteered in forty-four students of E women’s university. Their ages were within 21.5±1.48 years. Body composition estimated with the Bioelectrical Impedence method(model; In Body.1999, Biospace Co. Korea), and Local bone mineral densities were measured by DEXA method(dual energy X-ray absorptiometry, PIXI 51008 model, Lunar Co. USA). Results in this study were as fellowing. The bone density of right wrist was positively correlated with age of young women(r=0.399, P＜.05). It recognized that the more age, the higher bone density, in the case of young women under thirty age. That powerfully influenced on the local bone density of left os calcis was the muscle mass volume; they showed positive correlation(r=0.426, P＜.000). However, muscle mass volume in the young women was highly related to height(r=0.666, P＜.000) rather than their weight(r=0.554, P＜.000). In conclusion, it was suggested that the local bone density at the left os calcis, axial bone, is possible to sustain and increase it even through ordinary walking in lifestyle, but the wrist site, appendicular bone must stimulate much more strain through the various physical activities in young women.