초록 close

This study was conducted to assess the bone mineral density (BMD) and the anthropometric measurements, life style,and other environmental factors affecting BMD in Korean adolescents. Subjects were 167 high school students (83male students, 84 female students) in Seoul. BMD was measured in the lumbar spine (LS), femoral neck (FN), femoral trochanter (FT), and Ward’s triangle (WT) by dual energy x-ray absorptiometry (DEXA). The questionnaire was used to assess the anthropometric measurements, life style, and other environmental factors. Bone mineral density of LS, FN,FT and WT were 0.967, 0.960, 0.795, 0.761 g/cm2. The BMD of LS was not different by sex but the male students’sBMD of FN, FT and WT were higher significantly than the female students (LS: 0.976 vs. 0.958, FN: 1.040 vs. 0.880,FT: 0.842 vs. 0.749, WT: 0.827 vs. 0.695 g/cm2) Female students’s BMD of LS, FN, WT, and FT was positively correlated with weight but male students’s BMD of WT was not correlated with weight. The factors such as the life style, activity and exercise have significant influence on BMD. This study confirms that the major factor affecting BMDwas body weight and the factors such as the life style, activity and exercise is related to accumulation of BMD. The classification of sexual characteristics is needed for further studies on BMD of adolescents. (Korean J Nutrition 38(3):242 ~ 250, 2005)