Grip strength measured by high precision dynamometry in healthy subjects from 5 to 80 years
Grip strength measured by high precision dynamometry in healthy subjects from 5 to 80 years
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DOI：
10.1186/s12891-015-0612-4
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发表时间：
2015-06-10
影响因子：
2.3
通讯作者：
Hogrel, Jean-Yves
中科院分区：
文献类型：
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作者：
Hogrel, Jean-Yves
背景：握力是一个变量，可能是重要的测量和跟踪在不同的人群。最近开发了一种新的高精度和灵敏度的测力计来评估握力。这项工作的目的是提供用这种新型测力仪（MyoGrip装置）测量的最大等距握力的标准，评估测量的可靠性，比较MyoGrip和Jamar测力仪获得的测量结果，并最终从健康受试者群体（儿童和成人）中建立预测方程。方法：采用MyoGrip和Jamar（被认为是黄金标准）对346名5 ~ 80岁的健康受试者进行最大握力测量。对77名受试者进行了两种装置的重测信度评估。为了避免衰老对强度的影响，对年龄小于60岁的受试者计算预测方程。结果：本研究提供了5 ~ 80岁健康受试者握力等尺度的标准。MyoGrip仪器可靠性好（类内相关系数：0.967）。尽管设备之间有良好的相关性，但Jamar倾向于高估最大握力约14%。一个单一的预测方程，男性和女性，成人和儿童只考虑手围可以用来计算预测的理论最大握力。结论：MyoGrip设备是测量等长握力的可靠工具。由于其独特的计量特性，它可以用于非常虚弱的病人或任何需要高精度和准确性的情况。
Background: Grip strength is a variable which may be important to measure and follow in various populations. A new dynamometer with high accuracy and sensitivity has recently been developed to assess grip strength. The objectives of this work were to provide norms of maximal isometric grip strength measured with this new dynamometer (the MyoGrip device), to assess the reliability of measurements, to compare the measurements obtained with MyoGrip and Jamar dynamometers and finally to establish predictive equations from a population of healthy subjects (children and adults).Methods: Measurements of maximal isometric grip strength using the MyoGrip and the Jamar (which is considered as the gold-standard) were performed on 346 healthy subjects aged from 5 to 80 years. Test-retest reliability for both devices was assessed on 77 subjects. Predictive equations were computed on subjects younger than 60 years of age in order to avoid the effects of aging on strength.Results: This study provides norms for isometric grip strength for health subjects from 5 to 80 years. Reliability of the MyoGrip device was excellent (intraclass correlation coefficient: 0.967). Despite good correlation between devices, the Jamar tended to overestimate maximal grip strength by about 14 %. A single predictive equation for men and women, adults and children incorporating hand circumference only can be used to compute the predicted theoretical maximal grip strength.Conclusions: The MyoGrip device is a reliable tool for measuring isometric grip strength. Owing to its unique metrological features, it can be used in very weak patients or in any situation where high precision and accuracy are required.