Veterans with upper-limb amputations may benefit from this research. We described testing done on a standard prosthetic hook and a hook with adaptations aimed at im-proving grasp. These hooks were compared with each other and with a normal anatomical hand. The results show that, for untrained hook users, the hooks take 2 to 3 times longer than the anatomical hand to perform simple tasks; difficult tasks may require even more time. The results demonstrate the promise of the mechanical adaptation and the importance of a high-friction surface on the end of the hook.
Volume 46 Number 8, 2009
Pages 1011 — 1020