무용 전공여학생의 연령대별 대퇴골 근위부 골밀도에 관한 연구

Abstract

To study how dance effects on the femur of the majoring dance girls, the bone mineral density is measured and analysed by using DEXA according to groups and age. The subjects are 85 general middle, high school and college girls(A group), 82 majoring Korean dance in art middle, high school and college girls(B), 86 majoring ballet(C), 50 majoring modern dance(D), they are living in B metropolitan city. The results are as follows : Femoral Neck(RFN·LFN) with age, at the age 13-15, ballet and Korean dance groups` bone mineral density of RFN·LFN is higher meaningfully than general group. In the age 16-18, modem dance group`s RFN bone density is higher meaningfully than Korean dance and general group. Modern dance, ballet and Korean dance groups` LFN bone density is higher than general group. In the age 19-21, modem dance group`s RFN·LFN bone mineal density is higher meaningfully than Korean dance and general groups. In the Trochanter(RTH·LTH) with age, at the 13-15 ages, the ballet and Korean dance groups` RTH·LTH bone mineral density is higher meaningfully than general group. In the age 16-18, modern dance, ballet, Korean dance groups` RTH bone mineral density is higher meaningfully than general group. Modem dance group`s LTH is higher meaningfully than Korean dance and general group. In the age 19-21, modern dance group`s RTH bone mineral density is higher meaningfully than Korean dance and general group. Modem dance group`s LTH bone mineral density is meaningfully higher than ballet and general group. In the Ward`s triangle(RWT·LWT) with age, at 13-15 ages, ballet and Korean dance groups` RWT·LWT bone mineral density is higher meaningfully than the general group. In the age 16-18, modern dance group`s RWT·LWT is higher meaningfully than general group. In the age 19-21, RWT·LWT has no difference among groups. Conclusionally, as the proceeding study has a little difference, there is difference according to parts. However, the bone mineral density of 3 majoring dance groups` femur is higher and peak bone density appearance age is somewhat faster. Accordingly, regular dance activity can help the increase of peak bone density and the earliness of peak bone density. So dance activity can effect on the positive change of bone mineral density.