Coordination of thumb joints during opposition Export

@article{Ref-pouce_coordination_joints, abstract = {Thumb opposition plays a vital role in hand function. Kinematically, thumb opposition results from composite movements from multiple joints moving in multiple directions. The purpose of this study was to examine the coordination of thumb joints during opposition tasks. A total of 15 female subjects with asymptomatic hands were studied. Three-dimensional angular kinematics of the carpometacarpal (CMC), metacarpophalangeal (MCP) and interphalangeal (IP) joints were obtained by a marker-based motion analysis system. Thumb opposition revealed coordination among joints in a specific direction (inter-joint coordination) and among different directions within a joint (intra-joint coordination). In particular, linear couplings existed between the flexion and pronation at the CMC joint, and between the flexion of the CMC joint and flexion of the MCP joint. Principal component analysis showed that only two principal components adequately represented the thumb opposition data of seven movement directions. A term functional degrees of freedom by virtue of principal component analysis was proposed to uncover the extent of movement coordination in functional tasks.}, address = {Hand Research Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, 210 Lothrop Street, E1641 BST, Pittsburgh, PA 15213, USA. zmli@pitt.edu}, author = {Li, Z. and Tang, J.}, citeulike-article-id = {3148689}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.jbiomech.2006.02.019}, citeulike-linkout-1 = {http://linkinghub.elsevier.com/retrieve/pii/S002192900600087X}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/16643926}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=16643926}, doi = {10.1016/j.jbiomech.2006.02.019}, issn = {00219290}, journal = {Journal of Biomechanics}, keywords = {ajout-14septembre2009, anatomie-main}, number = {3}, pages = {502--510}, posted-at = {2009-09-14 16:11:59}, priority = {0}, title = {Coordination of thumb joints during opposition}, url = {http://dx.doi.org/10.1016/j.jbiomech.2006.02.019}, volume = {40}, year = {2007} }

TY - JOUR ID - Ref-pouce_coordination_joints L3 - citeulike-article-id:3148689 N2 - Thumb opposition plays a vital role in hand function. Kinematically, thumb opposition results from composite movements from multiple joints moving in multiple directions. The purpose of this study was to examine the coordination of thumb joints during opposition tasks. A total of 15 female subjects with asymptomatic hands were studied. Three-dimensional angular kinematics of the carpometacarpal (CMC), metacarpophalangeal (MCP) and interphalangeal (IP) joints were obtained by a marker-based motion analysis system. Thumb opposition revealed coordination among joints in a specific direction (inter-joint coordination) and among different directions within a joint (intra-joint coordination). In particular, linear couplings existed between the flexion and pronation at the CMC joint, and between the flexion of the CMC joint and flexion of the MCP joint. Principal component analysis showed that only two principal components adequately represented the thumb opposition data of seven movement directions. A term functional degrees of freedom by virtue of principal component analysis was proposed to uncover the extent of movement coordination in functional tasks. IS - 3 JF - Journal of Biomechanics SN - 00219290 AD - Hand Research Laboratory, Department of Orthopaedic Surgery, University of Pittsburgh, 210 Lothrop Street, E1641 BST, Pittsburgh, PA 15213, USA. zmli@pitt.edu EP - 510 TI - Coordination of thumb joints during opposition VL - 40 SP - 502 KW - ajout-14septembre2009 KW - anatomie-main AU - Li, Z AU - Tang, J PY - 2007/// UR - http://dx.doi.org/10.1016/j.jbiomech.2006.02.019 ER -