Estudio cinemático de la mano para movimiento de oposición del dedo pulgar y movimientos de flexión y extensión de los dedos índice, medio, anular y meñique

Abstract

Present work studies hand articular kinematics for opposition movements of the thumb and flexion-extension movements of the fingers. We gathered data by means of Motion capture (MOCAP) photogrammetry and passive markers on the participant hand located in anatomical points recommended by International Society of Biomechanics (ISB). We collected data from nine participants who did not have any neuronal, rheumatologic or traumatological problems. Cycles were demarcated for the study's ranges of movement and analyzed with the rotation of three-dimensional joints method. Subsequently, obtained data was fed in a virtual model in 3D through the software "OpenSim" to simulate the obtained ranges of movement and compared with similar studies. We found that with the proposed methodology, ranges of movement for each hand joint in the performed exercises are acceptable between subjects and according to similar studies. This will allow a later study of greater scope focused in the comparison of people suffering from hand disorders compared to a population standard.