부산대학교 도서관

The purpose of this study was to investigate the effects of line dance and resistance exercise programs on short physical performance battery for the bone mineral density and parathyroid hormone levels of elderly women.The subjects for the study were twenty-two elderly female volunteers, aged 65–75 years, composed of the line dance and resistance exercise group(n=11) and a "no exercise" control group(n=11).The line dance program was performed twice per week for 60 minutes and the resistance exercise program was once per week, both for 12 weeks. Exercise intensity was progressively increased from RPE “fairly light” to “slightly hard” (from 11 to 14).The variables of short physical performance battery, bone mineral density and parathyroid hormone were measured in all the subjects before the start of the training program and after at the end of the 12weeks line dance and resistance exercise training.The test data were analyzed by paired t-test, independent t-test, and two-way repeated analysis of variance (ANOVA), and the alpha level of p < .05 was set for all tests of significance.The findings of this study were as follows;1. Effects on short physical performance batteryShort physical performance battery significantly increased after the exercise group had exercised compared to before; no significant differences were seen in the control group. Balance test, gait speed, and rising from a chair five times had significantly increased in the exercise group, while no significant difference was seen in the control group.2. Effects on bone mineral densityBone mineral density increased significantly after the exercise group in the lumbar spine (L2–L4) bone densities, and the T-score did not indicate any significant post-exercise increase among the exercise group. 3. Effects on parathyroid hormoneThe PTH level significantly decreased among the exercise group decreased compared to before the exercise regime and had decreased among the control group, but no significant difference was seen. In conclusion, regular Regular and continuous physical activity was effective at improving short physical performance, and had a positive effect on bone mineral density and parathyroid hormone. As women’s age increases, so does the reduction in muscle strength and bone density; it is strongly recommended that women carry out continued physical activity to prevent disease and ensure a healthy retirement.