Hallbeck M S
Industrial and Management Systems Engineering Department, Center for Ergonomics and Safety Research, University of Nebraska, Lincoln, NE 68588-0518, USA.
Appl Ergon. 1994 Dec;25(6):379-85. doi: 10.1016/0003-6870(94)90057-4.
An experiment was performed to evaluate the relationships among active range of motion (ROM), gender, wrist position and direction of force exertion in their effects on the magnitude of static force exerted by the wrist-dedicated muscles in wrist flexion and extension. This study employed 60 right-hand-dominant subjects (30 male, 30 female) between 20 and 30 years of age, all reporting no prior wrist injury and good to excellent overall physical condition. The ROM of each subject was used to determine the number of wrist positions evaluated for static maximal voluntary forces generated in wrist flexion and extension while they were instructed to relax their fingers; thus only the six wrist-dedicated muscles were employed in the exertion. The ANOVA procedure showed gender, wrist position, direction of force exertion, and the wrist position interaction with direction to have significant effects upon maximal force exertion. Females averaged 76.3% of the mean male flexion force and 72.4% for extension. On average, extension forces were found to be 83.4% of those generated by flexing the wrist-dedicated muscles.
进行了一项实验，以评估活动范围（ROM）、性别、手腕位置和力的施加方向之间的关系，这些因素对腕部专用肌肉在手腕屈伸时施加的静力大小的影响。本研究招募了60名年龄在20至30岁之间的右利手受试者（30名男性，30名女性），所有受试者均报告无既往手腕损伤且整体身体状况良好至优秀。在受试者被要求放松手指时，利用每个受试者的活动范围来确定在手腕屈伸时评估静态最大自主力所采用的手腕位置数量；因此，在用力过程中仅使用六块腕部专用肌肉。方差分析程序表明，性别、手腕位置、力的施加方向以及手腕位置与方向的相互作用对最大用力有显著影响。女性平均屈曲力为男性平均屈曲力的76.3%，伸展力为72.4%。平均而言，伸展力为手腕专用肌肉屈曲时产生的力的83.4%。
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