THE MEASUREMENT OF MUSCLE STRENGTH IN PATIENTS WITH PERIPHERAL NEUROMUSCULAR DISORDERS
THE MEASUREMENT OF MUSCLE STRENGTH IN PATIENTS WITH PERIPHERAL NEUROMUSCULAR DISORDERS
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DOI：
10.1136/jnnp.46.11.1006
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发表时间：
1983-01-01
影响因子：
11
通讯作者：
KARNI, Y
中科院分区：
文献类型：
--
作者：
WILES, CM;KARNI, Y
在正常人和周围神经肌肉疾病患者中评估自愿等长肌力测量的变异性。在5个月内，在肌肉测试椅上测量膝关节伸肌力量13次。在6名正常受试者中，不同受试者的个体腿的变异系数（CV）范围为4.5-14.0%（平均8.5%）。使用手持式测力计和肌肉椅技术对20名患者的几个临床弱肌群的力量进行了配对测量，间隔1-4天：测试/再测试相关性高（r = 0.97，p < 0.001）。在大多数情况下，视觉生物反馈不影响记录的强度。5名检查员在24小时内测量了5名患者的6或7个临床弱肌群的力量：5名检查员的CV范围为3.6-27.3%（平均12.8%）。一名检查者在3例患者中测量相同组5次，平均CV为8.9%。变异的来源进行了分析，并采取一定的预防措施，自愿强度测量提供了一个简单的，可靠的和可接受的方法来监测病人的变化。
The variability of voluntary isometric strength measurements was assessed in normal subjects and patients with peripheral neuromuscular disorders. Knee extensor strength was measured in a muscle testing chair 13 times over 5 mo. in each of 6 normal subjects: coefficients of variation (CV) ranged from 4.5-14.0% (mean 8.5%) for individual legs in different subjects. Paired measurements of the strength of several clinically weak muscle groups were made 1-4 days apart in 20 patients using both a handheld dynamometer and the muscle chair technique: the test/retest correlation was high (r = 0.97, p < 0.001). Visual biofeedback did not affect the strength recorded in most cases. Each of 5 patients had the strength of 6 or 7 clinically weak muscle groups measured by 5 examiners within a 24 hour period: the CV for the 5 examiners ranged from 3.6-27.3% (mean 12.8%). A single examiner measuring the same groups on 5 occasions in 3 patients obtained a mean CV of 8.9%. Sources of variation are analyzed and, with certain precautions, voluntary strength measurements offer a simple, reliable and acceptable method for monitoring change in patients.