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A comparison of the grip force distribution in natural hands and in prosthetic hands
KARGOV A; PYLATIUK C; MARTIN J
DISABIL REHABIL , 2004, vol. 26, n° 12, p. 705-711 Doc n°: 114158 Localisation : Documentation IRR Descripteurs : DD82 - EXPLORATION EXAMENS BILANS - MAIN-DOIGTS The aim of this study is to analyse the grip force distribution for different prosthetic hand designs and the human hand fulfilling a functional task. Method: A cylindrical object is held with a power grasp and the contact forces are measured at 20 defined positions. The distributions of contact forces in standard electric prostheses, in a experimental prosthesis with an adaptive grasp, and in human hands as a reference are analysed and compared. Additionally, the joint torques are calculated and compared. Results: Contact forces of up to 24.7 N are applied by the middle and distal phalanges of the index finger, middle finger, and thumb of standard prosthetic hands, whereas forces of up to 3.8 N are measured for human hands. Langue : ANGLAIS |
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