Belcher Henry J C R, Smith Hayley
1 Independent Hand Surgeon, Edenbridge, UK.
2 Hand Therapy Department, Kent and Canterbury Hospital, Canterbury, UK.
J Hand Surg Eur Vol. 2019 Feb;44(2):196-202. doi: 10.1177/1753193418805959. Epub 2018 Nov 8.
Grip strength is used as a measure of capacity in disability and personal injury claims. Although seemingly an objective measure, it is widely recognized that it is fallible to the effects of sub-maximal effort. We have developed an extended test protocol that uses the five positions of a Jamar dynamometer. The protocol mitigates the effect of inconsistency while retaining the ability to detect sub-maximal effort. Dynamometry was undertaken in 242 volunteers (male:female, 124:118) with a median age of 39 years (range 18-89, interquartile range 29-52). Normative values for consistency, curve deviation and variation from the expected curve pattern are provided. None of these measures were significantly affected by laterality, hand dominance, sex or age despite the effects of these variables on grip strength. The study defines the methodology and reference values to allow assessment of both the capacity of a patient and the reliability of the test for use in medicolegal practice. Level of evidence: II.
握力被用作残疾和人身伤害索赔能力的一项衡量指标。尽管握力看似是一种客观的测量方法，但人们普遍认识到，它容易受到次最大努力效应的影响。我们开发了一种扩展测试方案，该方案使用Jamar测力计的五个位置。该方案减轻了不一致性的影响，同时保留了检测次最大努力的能力。对242名志愿者（男性：女性，124:118）进行了测力计测量，他们的年龄中位数为39岁（范围18 - 89岁，四分位间距29 - 52岁）。提供了关于一致性、曲线偏差以及与预期曲线模式差异的标准值。尽管这些变量对握力有影响，但这些测量指标均未受到左右侧性、手的优势、性别或年龄的显著影响。该研究定义了方法和参考值，以便在法医学实践中评估患者的能力以及测试的可靠性。证据级别：II。
