However none of them considered the anatomical shape of the hand in the optimal power grasp posture.
Based on the traditional design approach to determine optimal diameter of a tool-handle, a medical approach to obtain the shape of the subject's hand in its optimal power grasp posture was developed (39).
To maintain the shape of the hand in its optimal power grasp posture, an outer hand mould was manufactured using orthotic material while softly holding the optimal pre-handle.
This can be attributed to the anatomical handle shape, which is derived from the hand in its optimal power grasp posture.
The increase of perceived subjective comfort rating is due to anatomical shape of the handle, since the handle considers optimal power grasp posture in the development of the handle.
4 Power Grasp Total Force Number of Standard Hand (N) Trials Deviation iLimb Pulse Large Grip: 65.
The grasp force was measured on the commercial hands using pinch meters for precision grasps and a grip dynamometer for lateral grasp and power grasps.
In power grasps, the forces can reach up to 400 N .