Kannus P, Kaplan M
Tampere Research Station of Sports Medicine, UKK-Institute, Finland.
Can J Sport Sci. 1991 Dec;16(4):264-70.
This study evaluated the variability of the isokinetic angle-specific torques (ASTs) at 15 and 75 degrees of knee flexion and assessed the relationship between them and the isokinetic peak torque (PT) in 200 healthy adults. The results showed that the value of these AST measurements was lower than of the PT measurements. This was due to larger variability of the AST (male and female coefficient of variation [cv] 34 and 43% in the ASTs vs. 19 and 31% in the PTs); unequal variation in the results between men and women (mean cv 27% in men vs. 34% in women); and fairly poor prediction of the ASTs from the PT (PT accounted for only 39 and 62% for the variation seen in the men's and women's AST results). Furthermore, in regression analysis the standard errors of the estimates were unacceptably high, averaging 26%. AST measurements should not be used routinely.
本研究评估了200名健康成年人在膝关节屈曲15度和75度时等速特定角度扭矩（AST）的变异性，并评估了它们与等速峰值扭矩（PT）之间的关系。结果表明，这些AST测量值低于PT测量值。这是由于AST的变异性更大（AST中男性和女性的变异系数[cv]分别为34%和43%，而PT中分别为19%和31%）；男性和女性结果的变异不平等（男性平均cv为27%，女性为34%）；以及PT对AST的预测相当差（PT仅占男性和女性AST结果变异的39%和62%）。此外，在回归分析中，估计的标准误差高得不可接受，平均为26%。AST测量不应常规使用。
