抄録
Motorbikers who work in some offices sometimes complained of coldness, pain and numbness of upper limbs. We studied how to discriminate between vibration syndrome and local fatigue of the motorbikers. Subjects are 42 motorbikers of a certain office in Aichi prefecture. 25 of them held several letters in their left hand when they. delivered the letters. They complained of coldness, pain and numbness in the left upper lirnbs more than in the right upper limbs. (p< 0.01) We think that it is the local fatigue rather than the disorder of vibration syndrome that causes such symptoms. So it Is very important of us to recognize the existence of the local fatigue in order to know how to discriminate between vibration syndrome and local fatigue of the motorbikers.
