Abstract
In this study, the temporary threshold shift of finger-tip vibratory sensatin after vibration exposure is investigated in relation with e frequency, vibration acceleratin level, exposure time and the grip force in clasiping a handle. Three subjects with vibratory sensation were exposed. The age of these subjects ranged from 21 to 24 years of Age. Teh octave band vibration was applied to the right hand through a handle attached to an electro-dynamic vibration exciter for 2.5,5 and 10 min. The threshold of 63,125 and 250 Hz vibratory sensation was measured at every 2.5 dB step at right forefinger-tip before exposure and every minute after octave band vibration exposure. As a resutl, the predicted equations for temporaruy threshold shift of vibratory sensatin were obtained.
