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首页> 外文期刊>Journal of hand therapy: Official journal of the American Society of Hand Therapists >The reliability of one vs. three grip trials in symptomatic and asymptomatic subjects.
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The reliability of one vs. three grip trials in symptomatic and asymptomatic subjects.

机译：在有症状和无症状受试者中进行一次或三次抓地力试验的可靠性。

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Grip strength is used in the assessment of hand and upper limb function. Current recommendations state that taking the mean of three repeated grip trials provides more reliable results than only one trial. A repeated measures, crossover design was used. Sixty-six subjects were recruited (22 asymptomatic subjects, 22 following carpal tunnel decompression, and 22 following flexor tendon repair). Grip strength testing was performed on a Jamar dynamometer using a standardized testing protocol. Pre- and post testing pain levels were recorded using a verbal analogue scale. Each subject's grip strength was tested four times, twice using a single trial protocol and twice using three grip trials in random order. Intraclass correlation coefficients (ICC) (2,1), 95% confidence intervals, and standard error of measurements were calculated. A two-tailed paired samples t-test was used to investigate the difference between the grip strength values obtained and the changes in verbal analogue scale. High levels of test-retest reliability (ICC>or=0.85) were found for the three methods of grip strength testing (one trial, the mean of three trials, and the best of three trials). The mean values of grip strength generated for each method of grip strength testing produced comparable results. A significant difference (p>or=0.0001) was observed in the verbal analogue scale scores following one trial and three in all three sample groups. Clinically acceptable levels of reliability (>or=0.91) were demonstrated by all three methods of grip strength testing other than the mean of three trials for the asymptomatic group. Distribution of the ICC results and the elevated verbal analogue scales associated with three trials suggest that the use of one grip trial may be appropriate. This study suggests that one maximal trial is as reliable as and less painful than either the best of, or, mean of three trials.
机译：握力用于评估手和上肢功能。当前的建议指出，以三个重复抓地力试验的平均值作为结果，比仅一个试验就更可靠。重复测量，采用交叉设计。招募了66名受试者（22名无症状受试者，腕管减压后22名，屈肌腱修复后22名）。握力测试使用标准测试规程在Jamar测功机上进行。使用口头模拟量表记录测试前和测试后的疼痛水平。每个受试者的抓地力测试了四次，使用单个试验方案两次，并使用三个以随机顺序进行的三个抓地试验两次。计算了类内相关系数（ICC）（2,1），95％置信区间和测量的标准误差。使用两尾成对的样本t检验，研究获得的握力强度值与口头模拟量表变化之间的差异。对于三种握力强度测试方法（一项试验，三项试验的平均值和三项试验中的最好项），发现了高水平的重测可靠性（ICC>或= 0.85）。每种握力测试方法产生的握力平均值均产生了可比的结果。在一项试验之后，在所有三个样本组中，有三项在口头模拟量表评分中观察到了显着差异（p> = 0.0001）。通过所有三种握力强度测试方法（无症状组的三项试验的平均值）证明了临床可接受的可靠性水平（>或= 0.91）。 ICC结果的分布和与三项试验相关的言语类似量表的升高表明，使用一项抓地力试验可能是合适的。这项研究表明，一项最大的试验与三项试验中的最佳结果或平均值一样可靠，并且没有痛苦。

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