最近作者曾报导了使用振动工具的工人,其末梢神经传导速度有所下降。同时作者又从所观察到的更多病例中探讨了末梢神经传导速度与振动病病情程度的关系。还对停止使用振动工具五年以上的确认为振动病患者的传导速度作了测定,对末梢神经障碍的恢复程度作了探讨。〔对象〕使用振动工具作业的工人242名(林业126名、采石业32名、隧道作业临时工72名、其他12名)。工零4～25年,平均11年。另选28～57岁的健康男子16名作对照组。〔方法〕在23℃左右的室温下,使患者取 Recently, the authors have reported that workers using vibratory tools experienced a decrease in peripheral nerve conduction velocity. In the meantime, the author explored the relationship between the peripheral nerve conduction velocity and the severity of vibration sickness from the more cases observed. We also measured the conduction velocity of those who stopped using the vibrating tool for more than five years and confirmed the degree of recovery of peripheral neuropathy. [Object] 242 workers (126 for forestry, 32 for quarrying, 72 for tunneling and 12 for others) using vibrating tools. Labor zero 4 to 25 years, an average of 11 years. Another 28 to 57-year-old healthy 16 men for the control group. [Method] The patient was taken at a room temperature of about 23 ° C