Stephens J L, Pratt N, Michlovitz S
Union Memorial Hospital, Baltimore, Maryland, USA.
J Hand Ther. 1996 Jan-Mar;9(1):18-26. doi: 10.1016/s0894-1130(96)80007-x.
The purpose of this study was to evaluate the reliability and validity of the Tekdyne hand dynamometer for measuring grip strength as compared with the Jamar dynamometer. Additionally, it was hypothesized that one to six weeks after carpal tunnel release (CTR) grip strength would appear to be greater when tested on a softer tool than when tested on the Jamar dynamometer. The Tekdyne, the standard Jamar instrument (SJ) and a Jamar dynamometer modified with foam padding (MJ) were compared in 48 subjects without upper-extremity abnormality and 30 subjects following open-palm CTR. The Tekdyne and the Jamar hand dynamometers were well correlated in the presence and in the absence of upper-extremity abnormality (r = 0.975 and r = 0.871, respectively). Tekdyne intrasession reliabilities in both the non-surgical group and the surgical group were high (ICC = 0.954, SEM = 0.290 psi and ICC = 0.958, SEM = 0.219 psi). The Tekdyne intersession reliability of the non-surgical group was high (ICC = 0.971, SEM = 0.22 psi). There was no statistically significant difference between the ratios of the non-operated grip strengths across the three measurement devices, suggesting that the softer device did not promote greater force production by the operated hand.
本研究的目的是评估Tekdyne握力计与Jamar握力计相比在测量握力方面的可靠性和有效性。此外，研究假设在腕管松解术（CTR）后1至6周，使用较软工具测试时的握力似乎会比使用Jamar握力计测试时更大。在48名无上肢异常的受试者和30名接受开放性手掌CTR的受试者中，对Tekdyne握力计、标准Jamar仪器（SJ）和带有泡沫衬垫的改良Jamar握力计（MJ）进行了比较。在有和无上肢异常的情况下，Tekdyne握力计和Jamar握力计的相关性都很好（分别为r = 0.975和r = 0.871）。非手术组和手术组中Tekdyne握力计的组内可靠性都很高（组内相关系数ICC = 0.954，测量标准误SEM = 0.290磅力/平方英寸；ICC = 0.958，SEM = 0.219磅力/平方英寸）。非手术组中Tekdyne握力计的组间可靠性很高（ICC = 0.971，SEM = 0.22磅力/平方英寸）。三种测量设备测量的未手术手的握力比值之间没有统计学上的显著差异，这表明较软的设备并没有促使手术手产生更大的力量。
