| 曹克勇,李雪芹,祝腊香,邱爽.不同强度有氧运动对男性老年人骨密度和体成分的影响[J].中国康复,2016,31(2):91-93 |
| 不同强度有氧运动对男性老年人骨密度和体成分的影响 |
| Effect of aerobic exercise with different intensity on BMD and body composition in elderly male people |
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| DOI： |
| 中文关键词: 运动强度 有氧运动 骨密度 体成分 |
| 英文关键词: Exercise intensity Aerobic exercise Bone mineral density Body composition |
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| 中文摘要: |
| 目的：观察不同强度有氧运动对健康男性老年人骨密度和体成分的影响。方法：选取体健男性老年人90例，根据训练强度的不同采用随机数字表法分为低强度（A组）、中强度（B组）和高强度（C组），每组30例。参照3组受试者在症状限制性心电运动试验结果中所取得的最高心率制订运动强度，A组采取50%最高心率为靶心率的运动强度， B组采取70%最高心率为靶心率的运动强度， C组采取90%最高心率为靶心率的运动强度；3组受试者均采用医用跑台（随时监测心率）跑步的运动方式进行训练；3组受试者在靶心率时的运动时间均为每次30min，每周训练≥3次，训练6个月。记录3组受试者训练前、训练后骨密度（BMD）、腰臀比（WHR）和体脂率（BFR），并对其进行比较分析。结果：训练6个月后，3组BMD水平较训练前均有明显升高（P＜0.05），且B、C组均明显高于A组（P＜0.05），但B、C组比较差异无统计学意义。训练后，3组WHR、BFR较训练前均明显下降（P＜0.05），且B、C组均明显低于A组（P＜0.05），但B、C组比较差异无统计学意义。结论：中、高强度有氧运动均能显著改善男性老年人骨密度和体成分，且中强度训练与高强度训练对骨密度和体成分的影响无明显差异，建议男性老年人采用中强度有氧运动来提升骨密度和改善体成分。 |
| 英文摘要: |
| Objective:To investigate the effect of aerobic exercise with different intensity on bone mineral density (BMD) and body composition in elderly male people. Methods: Ninety healthy elderly male people were randomly divided into low-intensity A, moderate-intensity B, and high-intensity C groups with 30 cases in each group. According to each person's maximal heart rate in a restrictive electrocardiogram exercise test to make exercise intensity, groups A, B, and C performed aerobic exercise at 50%, 70%, and 90% of heart rate reserve respectively. Three groups were treated by medical treadmill (monitor heart rate at any time) running training. The movement time of each group reached 30 min on the target heart rate, three times per week at least for 6 months. BMD, waist-hip ratio (WHR) and body fat rate (BFR) were recorded and analyzed before and after training. Results: BMD of three groups was significantly increased after training (P<0.05), while WHR and BFR were significantly decreased (P<0.05). Moreover, as compared with the low-intensity group, there were significant differences in BMD, WHR and BFR in the high-intensity group or moderate-intensity group (P<0.05), but there was no significant difference between high-intensity group and moderate-intensity group (P>0.05). Conclusion：The high-intensity and moderate-intensity aerobic exercise can significantly improve BMD and BFR in elderly male people, but the effects of the moderate-intensity training and high-intensity training on BMD and body composition have no significant difference. We suggest that the moderate-intensity strength of aerobic exercise is used in elderly people to improve BMD and body composition. |
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