更年期女性の骨量低下と運動、食生活の関わり

抄録

We investigated the effect of habitual exercise and/or dietary intakes on Stiffness value investigated at calcaneus by a quantitative ultrasound measurement in menopausal women. Based on result of answer on last menses divided (under 6months, over 6months), the participants were two groups : <6mo-group and ≧6mo-group. While forty-nine women exercised at least once a week over 12month (exercised-group ; E), and seventy-nine women had no exercised or exercised once a week up to 12 month (control-group ; C). As a result, following results were obtained.

1) Mean ages were significantly higher in the ≧6mo-group than in the <6mo-group. 29 women in the<6mo-group and twenty women in the ≧6mo-group had a habitual exercise.

2) Mean Stiffness values were significantly lower in the ≧6mo-group than in <6mo-group. Moreover, the Stiffness values in ≧6mo-group were significantly higher in E-group than in C-group.

3) The main effect of the menses on intakes in vitamin-D and small fishes, and the main effect of the habitual exercise on the intakes of beans, and the habitual exercise menses interaction effect in small fish intakes were statistically significant.

4) After adjusted by age and menses, estimated mean Stiffness values were significantly higher in E-group than in C-group. Furthermore, age and menses adjusted-intakes of beans increased significantly in E-group compared to those in C-group.

These results suggest that, bone loss might be induced not only by biological factors such as aging and menses, but also prevented by habitual physical activity.