Tiffreau Vincent, Ledoux Isabelle, Eymard Bruno, Thévenon André, Hogrel Jean-Yves
Institut de Myologie, GH Pitié-Salpêtrière, 75651 Paris cedex 13, France.
Neuromuscul Disord. 2007 Jul;17(7):524-31. doi: 10.1016/j.nmd.2007.03.014. Epub 2007 May 29.
Precise, sensitive muscle strength testing methods are needed to investigate muscle function in patients with neuromuscular disorders (NMD). Here, we describe an isokinetic knee flexor and extensor testing procedure using the Biodex 3's continuous passive motion (CPM) mode. The torque values recorded during passive isokinetic motion were subtracted from the torque values obtained for the same movement with maximal, concentric effort. The aims of the present study were to (i) evaluate the method's reliability in NMD patients presenting mild to severe muscle weakness and (ii) study the relationship between manual muscle testing (MMT) and isokinetic dynamometry. The fifteen participating patients were tested twice; the respective intraclass correlation coefficients (ICCs) for the two sessions ranged from 0.91 to 0.99 for the peak torque, work and power and from 0.50 to 0.90 for the angle at peak torque. The Spearman rho correlation coefficients comparing isokinetic values and MMT values ranged from 0.67 to 0.74 (p<0.01). This reliable, dynamic method appears to be of great value in NMD evaluation when sensitive strength measurement at the knee is required.
需要精确、灵敏的肌肉力量测试方法来研究神经肌肉疾病（NMD）患者的肌肉功能。在此，我们描述一种使用Biodex 3的连续被动运动（CPM）模式进行等速屈膝和伸膝测试的程序。将被动等速运动期间记录的扭矩值从最大向心用力进行相同运动时获得的扭矩值中减去。本研究的目的是：（i）评估该方法在表现为轻度至重度肌肉无力的NMD患者中的可靠性，以及（ii）研究徒手肌力测试（MMT）与等速测力法之间的关系。15名参与研究的患者接受了两次测试；两次测试的组内相关系数（ICC），峰值扭矩、功和功率的范围为0.91至0.99，峰值扭矩角度的范围为0.50至0.90。比较等速值和MMT值的斯皮尔曼等级相关系数范围为0.67至0.74（p<0.01）。当需要在膝关节处进行灵敏的力量测量时，这种可靠的动态方法在NMD评估中似乎具有很大价值。
