Interdependency of the maximum range of flexion–extension of hand metacarpophalangeal joints

V. Gracia-Ibáñez, M. Vergara and J.-L. Sancho-Bru

Computer Methods in Biomechanics and Biomedical Engineering, 2016, vol. 19, issue 16, 1800-1807

Abstract: Mobility of the fingers metacarpophalangeal (MCP) joints depends on the posture of the adjacent ones. Current Biomechanical hand models consider fixed ranges of movement at joints, regardless of the posture, thus allowing for non-realistic postures, generating wrong results in reach studies and forward dynamic analyses. This study provides data for more realistic hand models. The maximum voluntary extension (MVE) and flexion (MVF) of different combinations of MCP joints were measured covering their range of motion. Dependency of the MVF and MVE on the posture of the adjacent MCP joints was confirmed and mathematical models obtained through regression analyses (RMSE 7.7°).

Date: 2016
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DOI: 10.1080/10255842.2016.1189541

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