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KMID : 1007320070130020131
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Journal of the Korean Society of Menopause
2007 Volume.13 No. 2 p.131 ~ p.136
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The Influence of Exercise on Bone Mineral Density in Korean Postmenopausal Women
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Kang Byung-Moon
Kim Mee-Ran
Yoon Byung-Koo
Lee Byung-Seok
Chung Hye-Won
Choi Hoon
Park Hyoung-Moo
Kim Jung-Gu
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Abstract
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Objectives: To determine relationship between exercise and bone mineral density of lumbar and femur sites in postmenopausal women.
Methods: A cross-sectional study in 1105 Korean menopausal women, mean+SD age 55.8+7.0 years, all healthy and free of medications affecting bones, including estrogen. We explored physical activity and bone mineral density in postmenopausal women Bone mineral density (BMD) of lumbar and femur regions and body composition were measured by dual X-ray absorptiometry. Types, duration and other variable measures of exercise were assessed by questionnaire.
Results: A group of postmenopausal women with more than 1 km daily walking showed 30% less risk of osteopenia or osteoporosis than women with less than 1km. A group of postmenopausal women with more than 20 step climbing showed tendency of less risk of osteopenia or osteoporosis than women with less than 20. A group of postmenopausal women doing exercise more than 2hours/week showed 40-50% less risk of osteopenia or osteoporosis than women doing exercise less than 1hour/week. Other variable measures of exercise did not show any statistical difference.
Conclusion: The results support the notion that higher intensity and longer duration of exercise is more effective for bone sparing than lower intensity and shorter duration of exercise.
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KEYWORD
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Bone mineral density, Menopause, Exercise
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