Martin Daniel, Cooper Simon, Sale Craig, Compton Graham, Elliott-Sale Kirsty
a Department of Sport Science , Nottingham Trent University , Clifton , UK.
J Sports Sci. 2015;33(11):1159-65. doi: 10.1080/02640414.2014.986504. Epub 2014 Dec 16.
The purpose of this study was to determine the reliability of maximum voluntary isometric force (MVIF), cross-sectional area (CSA) and force per unit CSA measures, of the first dorsal interosseus (FDI) muscle, using a custom-built dynamometer and ultrasonography. Twenty-seven participants completed MVIF and CSA measurements on two separate occasions under the same conditions. Reliability was determined using paired samples t-tests, systematic bias ratio and ratio limits of agreement (RLoA), intra-class correlation (ICC) and coefficient of variation (CV). MVIF of the FDI muscle (mean ± s; 31.8 ± 7.6 N and 31.6 ± 7.3 N) was not different between trials (P = 0.63); RLoA between trials were 1.00 ×/÷ 1.09, ICC = 0.990 and CV = 3.22%. CSA of the FDI muscle (22.6 ± 6.9 and 22.9 ± 6.9 mm²) was also not different between trials (P = 0.31); RLoA between trials were 0.98 ×/÷ 1.19, ICC = 0.979 and CV = 6.61%. Force per unit CSA was not different between trials (1.49 ± 0.43 and 1.46 ± 0.44 N·mm²; P = 0.18), RLoA were 1.02 ×/÷ 1.17, ICC = 0.985 and CV = 5.76%. The techniques used to determine MVIF and CSA of the FDI muscle were reliable and can be combined to calculate force per unit CSA.
本研究的目的是使用定制测力计和超声检查，确定第一背侧骨间肌（FDI）的最大自主等长力（MVIF）、横截面积（CSA）和单位CSA力测量值的可靠性。27名参与者在相同条件下分两次完成了MVIF和CSA测量。使用配对样本t检验、系统偏差率和一致性比率极限（RLoA）、组内相关系数（ICC）和变异系数（CV）来确定可靠性。FDI肌肉的MVIF在两次测试之间没有差异（平均值±标准差；31.8±7.6 N和31.6±7.3 N）（P = 0.63）；两次测试之间的RLoA为1.00×/÷1.09，ICC = 0.990，CV = 3.22%。FDI肌肉的CSA在两次测试之间也没有差异（22.6±6.9和22.9±6.9 mm²）（P = 0.31）；两次测试之间的RLoA为0.98×/÷1.19，ICC = 0.979，CV = 6.61%。单位CSA力在两次测试之间没有差异（1.49±0.43和1.46±0.44 N·mm²；P = 0.18），RLoA为1.02×/÷1.17，ICC = 0.985，CV = 5.76%。用于确定FDI肌肉MVIF和CSA的技术是可靠的，并且可以结合起来计算单位CSA力。
