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Seiji Nishimura, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Katsuyuki Shibata, Kaoru Tada, Nobuhiko Komine, Yukiyasu Nakayama, Japan Purpose: Using our original sensor equipped with a 3-component force transducer, we developed a muscle strength measurement system for the thumb based on 3-dimensional analysis to identify muscle strength in the four directions of flexion, extension, abduction and adduction forces. The present study was performed to review the influence of differences in dorsal flexion and palmar flexion angle of the wrist joint on thumb flexion, extension, adduction, and abduction forces. Methods: Twelve thumbs of 15 healthy women with an average age of 22.4 were studied. The subjects, who had no medical history of functional disorders in the arms, voluntarily participated in our experiment |
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