운동이 정신지체 성인여성의 골밀도에 미치는 영향

The effects of continuous exercise on the bone mineral density of mentally retarded women

&nbsp;&nbsp;The purpose of this study was to investigate the effect of exercise to mentally retarded women&quot;s bone mineral density. Subjects were divided into three groups: Group A(age:27.9yr, n=8)-This group was mentally retarded exercise women, who had been doing regularly exercise for over three years. Group B(age:28.8yr, n=8)-This group was mentally retarded non exercise women, who hadn&quot;t been doing it as usual. Group C(age:29.0yr, n=8) This group was normal women, who hadn&quot;t been doing it as usual.<BR>&nbsp;&nbsp;This study analysed and compared the bone mineral density between these three groups. The results were summarized as follow.<BR>&nbsp;&nbsp;1. The BMI of group A(Mentally retarded exercise group) was 22.8±3.28 ㎏/㎡, group B(mentally retarded non exercise group) was 22.6±5.6 ㎏/㎡, and Group C(normal group)was 22.0±2.2 ㎏/㎡. There were no significant differences in BMI between three groups.<BR>&nbsp;&nbsp;2. There were significant difference in grip strength and back strength between three groups(p＜.001). The grip strength of group A was 16.9±6.5 ㎏, group B was 12.2±4.0 ㎏, and group C was 31.8±2.1 ㎏. The back strength of group A was 36.9±16.1 ㎏, group B was 34.2±8.4 ㎏, and group C was 96.9±32.7.<BR>&nbsp;&nbsp;3. These were significant difference bone mineral density of lumbar between these groups. Group A was 0.1±0.08 g/㎠, Group B was 0.888±0.10 g/㎠, and group C was 1.05±0.04 g/㎠(p＜.01).<BR>&nbsp;&nbsp;4. These were very significant difference bone mineral density of femur between these groups. Group A was 0.91±0.09g/㎠, group B was 0.74±0.08 g/㎠, and group C was 0.97±0.l4 g/㎠(p＜.000l).<BR>&nbsp;&nbsp;5. These were very significant difference bone mineral density of Forearm between these groups. Group A was 0.6±0.02 g/㎠, group B was 0.56±0.03g/㎠, and group C was 0.63±0.02 g/㎠(p＜.000l).<BR>&nbsp;&nbsp;6. Group A were correlations between bone mineral density of femur(neck) and BMI, weight(p＜.05).<BR>&nbsp;&nbsp;7. Group B were correlations between bone mineral density of forearm(MID, total) and age(p＜.05).<BR>&nbsp;&nbsp;8. Group C were correlations between bone mineral density of lumbar(L1) and age, BMI, back strength(L4).