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首页> 外文期刊>The journals of gerontology.Series A. Biological sciences and medical sciences >Reliability of a single-session isokinetic and isometric strength measurement protocol in older men.
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Reliability of a single-session isokinetic and isometric strength measurement protocol in older men.

机译：单会话等速和等距强度测量协议在老年男性中的可靠性。

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BACKGROUND: The purposes of the current study were (a) to determine the test-retest reliability of a single-session isokinetic and isometric strength testing protocol in older healthy men, and (b) to compare the outcomes of the reliability measures derived from averaged torque scores with those derived from a single peak torque score. METHODS: In 19 men (mean age, 72 +/- 5 years), both lower limbs were assessed independently on 2 separate test days using the Biodex System 3 dynamometer. After completing a 5-minute warm-up, each man performed three submaximal knee extensions followed by five maximal contractions at 90 degrees /s (CON), 0 degrees /s (ISO), and -90 degrees /s (ECC). Average (best 3 of 5) and peak CON, ISO, and ECC torque, and CON work and CON power were determined. Peak CON work and CON power were recorded from the highest peak torque concentric contraction (HPTCC). RESULTS: Intraclass correlation coefficients ranging from 0.84 to 0.94 were found to have good reliability. The typical error as a coefficient of variation ranged from 8% to 10% for averaged measures and from 8% to 17% for peak torque and HPTCC. The ratio limits of agreement for average and peak CON, ISO, and ECC torque ranged from 23% to 33% and from 40% to 54% for average CON and HPTCC work and power. CONCLUSIONS: The test-retest reliability of a single-session isokinetic and isometric strength testing protocol in this group of older healthy men displayed good relative reliability (intraclass correlation coefficient > 0.84); however, because the typical error as a coefficient of variation and ratio limits of agreement (absolute reliability) were large, single-session testing is not recommended.
机译：背景：本研究的目的是（a）确定老年健康男性单次运动量和等距力量测试方案的重测信度，以及（b）比较从平均数得出的信度测量结果扭矩得分与从单个峰值扭矩得分得出的得分相同。方法：在19名男性（平均年龄72 +/- 5岁）中，使用Biodex System 3测力计在2个独立的测试日分别评估了两个下肢。在完成5分钟的热身后，每个人以90度/ s（CON），0度/ s（ISO）和-90度/ s（ECC）进行三个次最大的膝盖伸展，然后进行五个最大的收缩。确定平均值（5个中的最佳3个）和峰值CON，ISO和ECC扭矩，以及CON功和CON功率。从最高峰值扭矩同心收缩（HPTCC）记录峰值CON功和CON功率。结果：类内相关系数从0.84到0.94被发现具有良好的可靠性。对于平均量度，典型误差作为变异系数的范围从8％到10％，对于峰值扭矩和HPTCC则从8％到17％。对于平均CON和HPTCC功和功率，平均和峰值CON，ISO和ECC扭矩的协议比率极限范围从23％到33％，从40％到54％。结论：在这一组老年健康男性中，单次运动量等速和等距强度测试方案的重测信度显示出良好的相对信度（类内相关系数> 0.84）;但是，由于典型误差（变异系数和一致性比率极限（绝对可靠性）较大），因此不建议进行单阶段测试。

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