成長期の規則的な運動が大学生の骨密度に及ぼす効果

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We studied the relationship between bone mineral densitv(BMD) and history of habitual exercise in a group of university students comprising 41 athletes(27 males and 14 females) and 39 non-athletes(24 males and 15 females). ranging in age from 18 to 28 yeras. Their athletic history during elementray, junior and senior high schools was surveyed. Subjects who had engaged in athletic activities more than 3 days/week for more than two years at each school level were classified as a former physically active group, whereas the others were classified as controls. The BMD of the femur(femoral neck, Ward's triangle, trochanteric region) and vertebrae (L2-4) was measured using dual-photon absorptiometry with a ^<153>Gd source. The following results were obtained: 1)University athletes showed significantly higher BMD of the femur and L2-4 than non-athletes.2) No significant difference was found for either sex between the physically active group on elementary school days and the control group with regard to BMD of the femur and L2-4. 3) The BMD of the femoral neck and trochanteric region in the male physically active group on junior high school days was significantly higher than that in the control group. The BMD of the femoral neck in the female physically active group on junior high school days was significantly higher than that in the control group. 4) The BMD of the femur and L2-4 in the female physically active group on senior high school days was significantly higher than that in the control group, whereas no differnce was found between these two groups for males. These results suggest that regular exercise during puberty is effective for increasing BMD, especially in females. The finding that increased BMD in association with physical activity on senior high school days was observed only in females may be due to the synergistic effect of estrogen and exercise.
日本体力医学会の論文
1993-02-01

成長期の規則的な運動が大学生の骨密度に及ぼす効果

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