Jeng O J, Radwin R G, Rodriquez A A
Department of Industrial Engineering, University of Wisconsin-Madison 53706.
Ergonomics. 1994 Jun;37(6):1055-69. doi: 10.1080/00140139408963718.
A reliable task was developed for investigating functional deficits associated with carpal tunnel syndrome (CTS). A rapid pinch and release psychomotor task utilizing muscles of the hand innervated by the median nerve was administered using a strain gauge dynamometer and providing limited force feedback. The motor performance characteristics studied were speed and force control. An experiment was conducted for studying the effects of force level, hand dominance, test-retest reliability, learning, and inter-subject variability using 13 subjects free from any hand disabilities or symptoms. A companion study was also conducted using 17 normal subjects and ten subjects diagnosed having CTS to investigate differences between CTS and control subjects. Dominant hands performed 4% to 8% better than the non-dominant hands by having a greater pinch rate, a smaller overshoot force, and less time above the upper force level and below the lower force level. Control subjects performed 25% to 82% better than CTS subjects. Age contributed 6% of the total variance for pinch rate and 7% of the total variance for the time below the lower force level. The results suggest that people suffering from CTS may experience similar functional psychomotor deficits in daily living and manual work activities.
开发了一项可靠的任务，用于研究与腕管综合征（CTS）相关的功能缺陷。使用应变片测力计并提供有限的力反馈，执行一项快速捏放精神运动任务，该任务利用正中神经支配的手部肌肉。所研究的运动性能特征为速度和力控制。使用13名无任何手部残疾或症状的受试者，进行了一项实验，以研究力水平、手的优势、重测信度、学习和个体间变异性的影响。还使用17名正常受试者和10名被诊断患有CTS的受试者进行了一项配套研究，以调查CTS患者与对照受试者之间的差异。优势手的捏力速率更高、过冲力更小、高于上力水平和低于下力水平的时间更短，其表现比非优势手好4%至8%。对照受试者的表现比CTS受试者好25%至82%。年龄对捏力速率的总方差贡献为6%，对低于下力水平时间的总方差贡献为7%。结果表明，患有CTS的人在日常生活和体力劳动活动中可能会经历类似的功能性精神运动缺陷。
