Schwartz S, Cohen M E, Herbison G J, Shah A
Department of Rehabilitation Medicine, Thomas Jefferson University, Philadelphia, PA.
Arch Phys Med Rehabil. 1992 Nov;73(11):1063-8.
One hundred and twenty-two individuals with spinal cord injuries at levels C4-6, Frankel classifications A through D, were evaluated to determine the relationship between the manual muscle test (MMT) and hand-held myometry as accurate methods for measuring muscular strength. More specifically, this study attempted to define a range of myometry scores that could be correlated with discrete MMT grades. It also investigated which of the two modalities (MMT or hand-held myometry) is the best reflection of improvement in muscle strength over time. Sequential motor strength examinations using both modalities were performed at 72 hours, one week, and two weeks post SCI and then one, two, three, four, six, 12, 18, and 24 months post injury. The data analyses included calculations of Spearman ranked correlations, analyses of variance, and linear regressions. Results showed that 22 of 24 correlations between MMT and myometry were significant at p values less than .001. The range of myometry measurements for a particular MMT grade appears to be most specific for MMT scores less than 4 (ie, poor-plus to good), and less specific for MMT scores greater than or equal to 4. The results of this study also indicate that myometry measurements detect increases in strength over time, which are not reflected by changes in MMT scores.
对122例C4 - 6节段脊髓损伤、Frankel分级为A至D级的患者进行评估，以确定徒手肌力测试（MMT）和手持肌动测量法作为测量肌肉力量的准确方法之间的关系。更具体地说，本研究试图确定一系列可与离散的MMT分级相关的肌动测量分数范围。它还研究了两种方法（MMT或手持肌动测量法）中哪一种最能反映肌肉力量随时间的改善情况。在脊髓损伤后72小时、1周和2周，以及损伤后1、2、3、4、6、12、18和24个月，使用这两种方法进行连续的运动力量检查。数据分析包括计算Spearman等级相关性、方差分析和线性回归。结果显示，MMT与肌动测量法之间的24项相关性中有22项在p值小于0.001时具有显著性。特定MMT分级的肌动测量范围对于小于4的MMT分数（即差+至良好）似乎最为特异，而对于大于或等于4的MMT分数则特异性较低。本研究结果还表明，肌动测量法能检测到力量随时间的增加，而MMT分数的变化并未反映这一点。
