Davis Phillip R, McKay Marnee J, Baldwin Jennifer N, Burns Joshua, Pareyson Davide, Rose Kristy J
Arthritis and Musculoskeletal Research Group, Faculty of Health Sciences, The University of Sydney, Australia.
Paediatric Gait Analysis Service of New South Wales, The Children's Hospital at Westmead, Sydney, Australia.
Muscle Nerve. 2017 Nov;56(5):896-900. doi: 10.1002/mus.25576. Epub 2017 May 30.
Hand-held dynamometry (HHD) is commonly used to measure ankle plantarflexion strength but has variable reliability measuring higher forces. Fixed HHD is suggested to improve reliability. We, therefore, compared the reliability, consistency, and accuracy of measuring plantarflexion strength.
Plantarflexion strength was measured in 25 healthy individuals with fixed HHD and HHD alone. Intraclass correlation coefficients (ICC ), SEM, minimal detectable change, and Spearman correlation coefficients were calculated to assess inter-trial repeatability, consistency, agreement, and accuracy.
Both methods were repeatable (ICC 0.96 to 0.98) and highly correlated (Spearman rho = 0.815; P < 0.01). Fixed HHD produced significantly higher force outputs. HHD alone provided more consistent force values.
Both methods of measuring ankle plantarflexion force were reliable. Force measured with fixed HHD will likely be more accurate for adults and individuals with greater strength, while HHD alone will be more consistent for individuals with lower strength. Muscle Nerve 56: 896-900, 2017.
手持式测力计（HHD）常用于测量踝关节跖屈力量，但在测量较大力量时可靠性存在差异。建议使用固定的HHD来提高可靠性。因此，我们比较了测量跖屈力量的可靠性、一致性和准确性。
对25名健康个体分别使用固定HHD和单独使用HHD测量跖屈力量。计算组内相关系数（ICC）、标准误（SEM）、最小可检测变化以及斯皮尔曼相关系数，以评估试验间的重复性、一致性、一致性和准确性。
两种方法均具有可重复性（ICC为0.96至0.98）且高度相关（斯皮尔曼rho = 0.815；P < 0.01）。固定HHD产生的力输出明显更高。单独使用HHD可提供更一致的力值。
两种测量踝关节跖屈力的方法均可靠。对于成年人和力量较大的个体，使用固定HHD测量的力可能更准确，而对于力量较小的个体，单独使用HHD则更具一致性。《肌肉与神经》56: 896 - 900, 2017。
