F-3-19-04
THE EFFECT OF EXERCISE ON POSTMENOPAUSAL OSTEOPOROSIS - A RANDOMIZED PROSPECTIVE STUDY -
Osamu Shirado, M.D., Toshikazu Ito, R.P.T., Yukio Mano, M.D., Kiyoshi Kaneda, M.D. (Hokkaido University, Sapporo, Japan)
Purpose: The effect of exercise on osteoporosis remains controversial. The purpose of this study was to determine the effect of exercise on postmenopausal osteoporosis of the spine.
Method: Forty-one postmenopausal women (mean, 59 years) were randomly assigned into three groups; Group A (N=13): no exercise as a control, Group B (N=14): one-foot standing exercise only, Group C (N=14): one-foot standing and trunk muscle strengthening exercise. Bone mineral density (BMD; mg/cm2) of the lumbar spine, trunk muscle strength (N-m), trunk muscle endurance, and maximum oxygen uptake were measured at baseline, 6 and 12 months.
Result: There was no statistically significant difference on BMD and maximum oxygen uptake among the three groups. Trunk muscle strength and endurance in Group C were significantly highest among the groups. Low-back pain in Group C patients improved at 12 months.
Conclusion: This randomized prospective study demonstrated that the exercise was not effective to increase BMD during the one-year period. However, it seems to have the beneficial effects of physical activities on skeletal health by increasing the trunk muscle strength.
F-3-19-05
Efficacy of a long-term exercise home-program in prevention of osteoporotoic fractures
E. Preisinger, Y. Alacamlioglu, K. Kerschan, J. Kollmitzer
Dept. of Physical Medicine and Rehabilitation, University of Vienna
To evaluate the efficacy of an exercise home-program in prevention of osteoporotic fractures 130 postmenopausal women were controlled up to 10 years. In the exercise group the long-term compliance with regular training was 36%. In a longitudinal study we observed a delay in bone loss (p<0.05) in the exercise group with high compliance in comparison to the control group or the non-compliant group. In a cross- sectional study we found a slight but not significant difference in walking velocity also. Other predictors of osteoporotic fractures like muscle strength, postural stability, and pain disability index failed any significant differences between the groups. However, multiple logistic regressions showed a positive correlation between pain disability index and walking velocity. Therefore we conclude, that for the prevention of osteoporotic fractures in elderly women individually adapted exercises should be considered in addition to a home-program.
