EFFECTS OF EXERCISE TRAINING ON BONE-DENSITY IN OLDER MEN AND WOMEN
EFFECTS OF EXERCISE TRAINING ON BONE-DENSITY IN OLDER MEN AND WOMEN
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DOI：
10.1111/j.1532-5415.1991.tb02870.x
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发表时间：
1991-11-01
影响因子：
6.3
通讯作者：
COLEMAN, RE
中科院分区：
文献类型：
--
作者：
BLUMENTHAL, JA;EMERY, CF;COLEMAN, RE
目的：为了确定长达14个月的有氧运动对老年人骨密度测量的影响，设计：随机对照试验，受试者被分配到有氧运动条件下，非有氧瑜伽，或等待名单非运动对照组4个月。在基线（时间1）和4个月后（时间2）对所有受试者的有氧健身和骨密度进行评价。采用半交叉设计，所有受试者完成4个月的有氧运动，然后进行另一次评估（时间3）。然后所有受试者都可以选择另外6个月的有氧运动，之后他们进行第四次评估（时间4）。地点：一家大型大型医疗中心的门诊运动康复机构。受试者：101名60岁以上的健康男性（n = 50）和女性（n = 51干预措施：在整个研究过程中，运动计划包括拉伸、踏车测力计和每周三次步行，每次60分钟。结果测量：通过踏车测力计评估的有氧健身（VO 2 max）和骨密度（骨矿物质含量）通过单光子吸收测定法测量。在4个月的运动训练后，受试者的最大摄氧量增加了10%-15%，并在额外训练后进一步改善了1%-6%。有氧健身与男性骨密度的显著增加有关，但与女性无关，他们坚持有氧运动14个月。
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 semicrossover 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 (VO2max) as assessed by cycle ergometry, and bone density (bone mineral content) measured by single photon absorptiometry.Results: Subjects achieved a 10%-15% increase in VO2max 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.