Tool-handle design based on a digital human hand model

This paper introduces methods for developing a static DHHM for an optimal power-grasp posture by directly modelling a tool-handle with improved ergonomics. It also demonstrates that anatomically-shaped tool-handles based on the developed DHHM with optimal power-grasp posture increases the contact area and the subjective comfort-rating, thus increasing user performance and lowering the risk of CTD.