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目的 了解手臂振动职业危害对工人健康的影响。方法 对砂轮磨光作业工人进行医学查体，对振动性白指患者进行计分和分期。结果 白指组全身及手臂症状的发生率及其痛觉阈值和动脉血压明显高于接振组和对照组；白指组计分为１２－１５ ±１０－１０ ，Ⅰ期、Ⅱ期和Ⅲ期的白指患者分别为７ 人、１０ 人和３ 人。结论 砂轮磨光作业手臂振动职业危害仍较严重，应采取防护措施。
Objective To understand the impact of occupational hazards on worker's health caused by arm vibration. Methods The workers of the grinding wheel were inspected for medical examination, and the patients with shaky white index were scored and staged. Results The incidence of general and arm symptom, pain threshold and arterial blood pressure in white matter group were significantly higher than those in vibration-receiving group and control group. The scores of white matter group were 12-15 ± 10-10, Ⅰ, Ⅱ and Ⅲ The white-finger patients were 7, 10 and 3 respectively. Conclusion Occupational hazards of arm vibration in grinding wheel operation are still serious, and protective measures should be taken.