Garcia Stefan C, Dueweke Jeffrey J, Mendias Christopher L
1 Department of Orthopaedic Surgery, University of Michigan Medical School, Ann Arbor, MI.
J Sport Rehabil. 2016 Nov 1;25(4). doi: 10.1123/jsr.2015-0118. Epub 2016 Aug 24.
Manual isometric muscle testing is a common clinical technique that is used to assess muscle strength. To provide the most accurate data for the test, the muscle being assessed should be at a length in which it produces maximum force. However there is tremendous variability in the recommended positions and joint angles used to conduct these tests, with little apparent objective data used to position the joint such that muscle force production is greatest.
To use validated anatomically and biomechanically-based musculoskeletal models to identify the optimal joint positions in which to perform manual isometric testing.
In silico analysis.
The joint position which produces maximum muscle force for 49 major limb and trunk muscles.
The optimal joint position for performing a manual isometric test was determined.
Using objective anatomical models that take into account the force-length properties of muscles, we identified joint positions in which net muscle force production was predicted to be maximal. This data can help health care providers to better assess muscle function when manual isometric strength tests are performed.
手法等长肌力测试是一种用于评估肌肉力量的常见临床技术。为了为测试提供最准确的数据，被评估的肌肉应处于能产生最大力量的长度。然而，在进行这些测试时所使用的推荐姿势和关节角度存在极大差异，几乎没有明显的客观数据用于将关节定位到使肌肉力量产生最大的位置。
使用经过验证的基于解剖学和生物力学的肌肉骨骼模型来确定进行手法等长测试的最佳关节位置。
计算机模拟分析。
49块主要肢体和躯干肌肉产生最大肌肉力量时的关节位置。
确定了进行手法等长测试的最佳关节位置。
通过使用考虑肌肉力-长度特性的客观解剖模型，我们确定了预计净肌肉力量产生最大的关节位置。这些数据可帮助医疗保健人员在进行手法等长力量测试时更好地评估肌肉功能。
