Faculdade de Ciências da Nutrição e Alimentação da Universidade do Porto, Portugal.
J Nutr Health Aging. 2009 Dec;13(10):907-12. doi: 10.1007/s12603-009-0250-3.
Some dynamometers previously tested in healthy adults showed variable degrees of practicality, weight and ergonomics. More practical models could also be used as a more suitable tool in gerontological field and clinical studies. The purpose of the present study was to evaluate the reliability of the measurements and the performance of hand grip strength dynamometers in the elderly.
Cross-sectional study.
A retirement home and a social day care centre for old people in Porto, Portugal.
The accuracy of four static grip strength dynamometers (Smedlay's Hand, Sammons Preston Rolyan Bulb, Eisenhut and the Jamar Hydraulic Hand) was first tested in laboratory. The grip strength of fifty-five elderly individuals 65-99 years was measured with the four dynamometers and the Jamar Hydraulic Hand which was used as the comparison dynamometer.
The accuracy of the four dynamometers measurements compared to known forces was excellent (r > 0.96). A strong association between the measurements obtained by the Jamar Hydraulic and the other instruments evaluated was found (r > 0.77) but significant differences between the mean hand grip strength values evaluated with the Jamar Hydraulic and each one of the other dynamometers were found. The Bland and Altman plots confirmed that none of the three dynamometers reflects a good agreement with the Jamar Hydraulic.
All four dynamometers showed excellent results regarding their laboratory tested accuracy. However, their application among elderly people rendered very different results. The Smedlay's results were closer to the Jamar Hydraulic, though none of these three dynamometers produced comparable results to the Jamar Hydraulic.
一些在健康成年人中测试过的测力计在实用性、重量和人体工程学方面存在不同程度的差异。更实用的模型也可以在老年学领域和临床研究中作为更合适的工具使用。本研究的目的是评估老年人手部握力测力计测量的可靠性和性能。
横断面研究。
葡萄牙波尔图的一家养老院和一家老年人日间护理中心。
首先在实验室测试了四种静态握力测力计（Smedlay 手、Sammons Preston Rolyan 灯泡、Eisenhut 和 Jamar 液压手）的准确性。使用这四种测力计和 Jamar 液压手测量了 55 名 65-99 岁的老年人的握力，Jamar 液压手用作比较测力计。
与已知力相比，四种测力计测量的准确性非常好（r > 0.96）。发现 Jamar 液压和评估的其他仪器获得的测量值之间存在很强的相关性（r > 0.77），但 Jamar 液压和其他每一种测力计评估的平均手部握力值之间存在显著差异。Bland 和 Altman 图证实，没有一种测力计与 Jamar 液压有很好的一致性。
所有四种测力计在实验室测试的准确性方面都表现出色。然而，它们在老年人中的应用产生了非常不同的结果。Smedlay 的结果与 Jamar 液压更为接近，尽管这三种测力计都没有产生与 Jamar 液压可比的结果。
