抄録
To estimate the most useful impact hammer grip to paid attention to a arch of hand, sensory evaluation test and measurement of grasping space have been performed for ten university students from 21 years old to 25 years old a subject. As a result of having examined based on these results, it is estimated that the most desirable shape of impact hammer grip is a head inclined to the front side 22 degrees the whole, and an index finger and the middle finger and the part to contact with were ovals, and each minor axis was 33mm and 38mm, and, as for the third finger and the little finger, an each diameter was an arc of 36mm and a diameter of 29mm.