Bao Stephen, Silverstein Barbara
SHARP Program, Department of Labor and Industries, P.O. Box 44330, Olympia, WA 98504, USA.
Ergonomics. 2005 Feb 22;48(3):288-301. doi: 10.1080/0014013042000327724.
The aims of the present study were: (1) to collect normative data of pinch and power grip strength with a newer digital dynamometer; (2) to study the ability of hand grip force matching using a hand dynamometer where the validity and reliability issues were studied; and (3) to study the relationship between hand grip force matching and muscle activities of three forearm and hand muscles. This study consisted of two experiments. One hundred and twenty subjects volunteered in the first experiment, where hand grip strength and hand force estimation data were collected. The second experiment had 14 volunteers, where muscle activities of the hand and forearm were collected during the tests of hand grip strength and hand force matching estimations. Results showed that the power grip and pinch grip strengths collected with a newer digital dynamometer were comparable to similar studies using older equipment. At the group level, the force matching method was largely accurate and consistent. Instructions to the subjects about force matching estimation were important to the accuracy and consistency of the estimated forces. Estimation in force matching might depend on perceptions of several major muscle activities.
（1）使用更新的数字测力计收集捏力和强力握力的标准数据；（2）使用已研究过有效性和可靠性问题的握力计研究握力匹配能力；（3）研究握力匹配与三块前臂和手部肌肉的肌肉活动之间的关系。本研究包括两个实验。120名受试者参与了第一个实验，收集了握力和手力估计数据。第二个实验有14名志愿者，在握力和手力匹配估计测试期间收集了手部和前臂的肌肉活动数据。结果表明，使用更新的数字测力计收集的强力握力和捏力与使用旧设备的类似研究结果相当。在组水平上，力匹配方法在很大程度上是准确和一致的。向受试者提供有关力匹配估计的指导对于估计力的准确性和一致性很重要。力匹配估计可能取决于对几种主要肌肉活动的感知。
