Radwin R G, Wertsch J J, Jeng O J, Casanova J
Department of Industrial Engineering, University of Wisconsin-Madison 53706.
J Occup Med. 1991 Jun;33(6):730-6. doi: 10.1097/00043764-199106000-00016.
A ridge detection threshold task was administered to patients diagnosed as having carpal tunnel syndrome for studying performance in an occupationally relevant functional tactile inspection task. Thresholds were compared with a reference group of subjects not having carpal tunnel syndrome symptoms, performing the same task. The threshold detection task used the method of limits for studying the effects of carpal tunnel syndrome, rate of ridge height changes, ridge gradient, and direction of shearing against the skin on ridge detection thresholds for a repeated measures factorial experimental design. Sixteen carpal tunnel syndrome hands and 30 normal hands were studied. Average ridge detection threshold was 0.08 mm for the normal subjects and increased to 0.20 mm for the carpal tunnel syndrome subjects. No significant age effect was observed. These results suggest that workers having carpal tunnel syndrome may not detect an edge or surface defect in a tactile inspection task unless it was more than twice as high as detected by workers without CTS.
对被诊断患有腕管综合征的患者进行了一项脊线检测阈值任务，以研究他们在与职业相关的功能性触觉检查任务中的表现。将阈值与一组没有腕管综合征症状且执行相同任务的受试者作为参照组进行比较。阈值检测任务采用极限法，用于研究腕管综合征、脊线高度变化率、脊线梯度以及皮肤剪切方向对重复测量析因实验设计中脊线检测阈值的影响。研究了16只患有腕管综合征的手和30只正常的手。正常受试者的平均脊线检测阈值为0.08毫米，而腕管综合征受试者的平均脊线检测阈值增加到了0.20毫米。未观察到显著的年龄效应。这些结果表明，患有腕管综合征的工人在触觉检查任务中可能无法检测到边缘或表面缺陷，除非该缺陷比没有腕管综合征的工人检测到的缺陷高出两倍以上。
