By implementing epoch-making policies for industrial promotion, the national economy has made a remarkable development. As a result of such economic grpwth, industrial accidents and occupational diseases have become a serious problem in Korean society.
In the presidential order for the execution of the Korean Labor Standard Law, neuritis and other diseases stemming from health impairments due to vibrations´in industrial ´processes are designated to be dealt with as vibration diseases. In the case of vibration disease, industrial accident compensation is not effectively paid.
In order to investigate the vibration hazards of rock-drill operation, the authors studied the subjective symptoms and performed physical function tests on a total of 79 persons (vibration exposed group) who used rock-drills, and 39 persons (control group) who did not use rock -dr, ills at anthracite mines.
The results of the physical function test were as follosws :
1. The right hand was more affected by white finger than the left hand.
2. Independent variables such as duration of rock-drill operation, age, drinking and smoking were indentified as statistically significant factors for the occurrence of white finger.
3. In the pain sense threshold, the group with Raynaud´s phenomenon showed a statistically higher level than that of the control group.
4. The skin temperature of the group with Raynaud´s phenomenon was lower than that of the control group. The recovery time of skin temperature aftr cooling-was delayed compared with the value of the control group.
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