제지방 체중이 운동선수와 비운동선수군에 있어서 골밀도에 미치는 영향

This studies the performance of the dual energy x-ray absorptiometry in evaluating bone mineral density and lean body mass. This method was accurate in quantifying known amounts of lean body mass and bone mineral density. The subjects classified into intercollegiate gymnastics(19.26 years, career 10.5 years, n=15) and non-athlete group(20.07 years, n=7). On the basis of the results of lean body mass of each body region and bone mineral density were analyzed. The results statistically analyzed on these data were summarized as follows; 1. Arms lean body mass showed a low correlation with arms bone mineral density. Legs lean body mass showed a significant correlation with legs bone mineral density(r=0.51, p＜.05). Trunk lean body mass showed a low correlation with legs, Trunk bone mineral density. Total lean body mass showed a significant correlation with Arms, Legs, Total bone mineral density(p＜.05) in control group. 2. Arms lean body mass showed a significant correlation with arms bone mineral density(r=0.64, p＜.05). Legs lean body mass showed a significant correlation with legs bone mineral density(r=0.86, p＜.001). Trunk lean body mass showed a significant correlation with trunk bone mineral density(r=0.52, p＜.05). Total lean body mass showed a significant correlation with total bone mineral density(r=0.81, p＜.001). Arm lean body mass showed a significant with Legs, Trunk, Total bone mineral density(r=0.65-0.88, p＜.001). Legs lean body mass showed a significant with Trunk, Total bone mineral density(r=0.81, p＜.001) in experimental group. 3. Lean body mass could be very important determinant of bone mineral density. 4. Lean body mass showed a high significant with bone mineral density by effect of training.