| Objective To investigate the effect of the same amount of loading intensity of resistance training on bone mineral density (BMD) and bone metabolism in young and older women. Methods The height- and body weight-matched Young group (n=36) and Older group (n=34) were undergone a supervised upper and lower limb resistance training for 16 weeks. BMD of the lumbar spine (L2-L4), proximal femur (neck of femur, Ward's triangle area, trochanter), muscle tension, and lower limb muscle strength were measured. Results 1) After the intervention, BMD of the femoral neck, Ward's triangle, and L2-L4, and tension increased significantly in Young group (p<0.05), but BMD of the trochanter was not changed significantly. In Older group, BMD of the femoral neck, Ward's triangle, and L2-L4, and the pull force and the force of the lower limbs increased significantly (p<0.05), but BMD of the trochanter was not changed significantly. 2) There was a positive correlation between muscle tension and BMD of L2-L4, femoral neck, Ward's triangle area, and great trochanter, respectively (r=0.642, 0.686, 0.600, 0.781). The muscle strength in the extremity was significantly positively correlated with BMD of L2-L4 and Ward's triangle area (r=0.526, r=0.619). Conclusion The 16-week resistance training improves the BMD of the lumbar spine and the femur in young and older women, with no age difference, but the improvement in the great trochanter is not significant. |