Effects of exercise training on bone density in older men and women
| Autor: | Charles F. Emery, Michael B. Higginbotham, James A. Blumenthal, S Schniebolk, David J. Madden, Frederick R. Cobb, R. Edward Coleman, Margaret W. Riddle |
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| Rok vydání: | 1991 |
| Předmět: |
Male
medicine.medical_specialty Bone density Physical fitness Physical exercise law.invention Oxygen Consumption Sex Factors Randomized controlled trial law Bone Density medicine Aerobic exercise Humans Longitudinal Studies Exercise physiology Exercise Aged Aged 80 and over Physical Education and Training business.industry VO2 max Middle Aged Clinical trial Physical Fitness Physical therapy Patient Compliance Female Geriatrics and Gerontology business |
| Zdroj: | Journal of the American Geriatrics Society. 39(11) |
| ISSN: | 0002-8614 |
| Popis: | Objectives: To determine the effects of up to 14 months of aerobic exercise on measures of bone density in older adults. Design: Randomized controlled trial with subjects assigned to either an aerobic exercise condition, non-aerobic yoga, or a wait list non-exercise control group for 4 months. Aerobic fitness and bone density were evaluated in all subjects at baseline (Time 1) and after 4 months (Time 2). A semi-crossover design was utilized with all subjects completing 4 months of aerobic exercise, followed by another evaluation (Time 3). All subjects were then given the option of 6 additional months of aerobic exercise, after which they had a fourth evaluation (Time 4). Setting: An outpatient exercise rehabilitation facility at a large, major medical center. Subjects: One-hundred-one healthy men (n = 50) and women (n = 51) over age 60 (Mean age = 67.0), recruited from the community. Intervention: The exercise program included stretching, cycle ergometry, and walking three times per week for 60 minutes throughout the course of the study. Outcome Measures: Aerobic fitness (VO2 max) as assessed by cycle ergometry, and bone density (bone mineral content) measured by single photon absorptiometry. Results: Subjects achieved a 10%–15% increase in VO2 max after 4 months of exercise training, and 1%–6% further improvement with additional training. Aerobic fitness was associated with significant increases in bone density in men, but not women, who maintained aerobic exercise for 14 months. |
| Databáze: | OpenAIRE |
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