Enhancing quality of life in older adults: A comparison of muscular strength and power training
Enhancing quality of life in older adults: A comparison of muscular strength and power training
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DOI：
10.1186/1477-7525-6-45
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发表时间：
2008-06-13
影响因子：
3.6
通讯作者：
Marsh, Anthony P.
中科院分区：
文献类型：
--
作者：
Katula, Jeffrey A.;Rejeski, W. Jack;Marsh, Anthony P.
背景：尽管已发现渐进式阻力力量训练（ST）可以改善老年人的身体机能的各种指标，但对生活质量的益处尚不清楚。此外，最近的证据表明，高速力量训练 (PT) 可能比 ST 更有利于身体机能，但尚不清楚这种训练是否会影响生活质量。本研究的目的是比较老年人 ST 与 PT 带来的多种生活质量指标的变化。还包括无运动组作为对照比较条件。方法：45 名老年人（M 年龄 = 74.8 岁；SD = 5.7）被随机分配到 a）PT、b）ST 或 c）对照组（无运动）。在基线和训练后评估自我效能（SE）、身体功能满意度（SPF）和生活满意度量表（SWL）的测量。阻力训练条件每周 3 次，持续 12 周，强度为 70% 1 次最大重复。结果：一系列 ANCOVA 对组间变化差异进行比较并控制基线值，结果显示所有三项指标均存在显着组间差异：SE ( F-(2,F-31) = 9.77；p < .001)； SPF（F-（2，F-32）= 3.36；p = .047）； SWL（F-（2，F-31）= 4.76；p = .016）。后续分析表明，PT 组报告的 SE、SPF 和 SWL 变化显着大于对照组，而 ST 组报告的 SE、SPF 和 SWL 变化仅在 SE 方面比对照组更大。结论：这些试点数据表明，除了通过传统力量训练获得的益处之外，高速力量训练可能会影响多个层面的生活质量。
Background: Although progressive resistance strength training (ST) has been found to improve various measures of physical functioning in older adults, the benefit to quality of life is unclear. Additionally, recent evidence suggests that high velocity power training ( PT) may be more beneficial for physical functioning than ST, but it is not known whether this type of training impacts quality of life. The purpose of this study was to compare changes in multiple measures of quality of life resulting from ST vs. PT in older adults. A no exercise group was also included as control comparison condition.Methods: Forty-five older adults ( M age = 74.8 years; SD = 5.7) were randomly assigned to either a) PT, b) ST, or c) control group ( no exercise). Measures of self-efficacy ( SE), satisfaction with physical function ( SPF), and the Satisfaction with Life Scale ( SWL) were assessed at baseline and following training. The resistance training conditions met 3 times per week for 12 weeks at an intensity of 70% 1 repetition maximum.Results: A series of ANCOVA's comparing between group differences in change and controlling for baseline values revealed significant group differences in all three measures: SE ( F-(2,F-31) = 9.77; p < .001); SPF (F-(2,F-32) = 3.36; p = .047); SWL ( F-(2,F-31) = 4.76; p = .016). Follow up analyses indicated that the PT group reported significantly more change in SE, SPF, and SWL than the control group whereas the ST group reported greater change than the control group only in SE.Conclusion: These pilot data indicate that high velocity power training may influence multiple levels of quality of life over and above the benefits gained through traditional strength training.