Warning: A non-numeric value encountered in /home/public/export/export_srwxml.php on line 32

Warning: Cannot modify header information - headers already sent by (output started at /home/public/export/export_srwxml.php:32) in /home/public/includes/include.inc.php on line 5344
1.1 1 xml info:srw/schema/1/mods-v3.2 Levin M F author Liebermann D G author Parmet Y author Berman S author 2015 English BACKGROUND: The extent to which the upper-limb flexor synergy constrains or compensates for arm motor impairment during reaching is controversial. This synergy can be quantified with a minimal marker set describing movements of the arm-plane. OBJECTIVES: To determine whether and how (a) upper-limb flexor synergy in patients with chronic stroke contributes to reaching movements to different arm workspace locations and (b) reaching deficits can be characterized by arm-plane motion. METHODS: Sixteen post-stroke and 8 healthy control subjects made unrestrained reaching movements to targets located in ipsilateral, central, and contralateral arm workspaces. Arm-plane, arm, and trunk motion, and their temporal and spatial linkages were analyzed. RESULTS: Individuals with moderate/severe stroke used greater arm-plane movement and compensatory trunk movement compared to those with mild stroke and control subjects. Arm-plane and trunk movements were more temporally coupled in stroke compared with controls. Reaching accuracy was related to different segment and joint combinations for each target and group: arm-plane movement in controls and mild stroke subjects, and trunk and elbow movements in moderate/severe stroke subjects. Arm-plane movement increased with time since stroke and when combined with trunk rotation, discriminated between different subject groups for reaching the central and contralateral targets. Trunk movement and arm-plane angle during target reaches predicted the subject group. CONCLUSIONS: The upper-limb flexor synergy was used adaptively for reaching accuracy by patients with mild, but not moderate/severe stroke. The flexor synergy, as parameterized by the amount of arm-plane motion, can be used by clinicians to identify levels of motor recovery in patients with stroke. adaptation arm movement compensation kinematics recovery rehabilitation PMID:26510934 exported from refbase (https://refbase.nfshost.com/show.php?record=79), last updated on Thu, 05 Nov 2015 14:36:05 +0000 text http://www.ncbi.nlm.nih.gov/pubmed/26510934 http://www.ncbi.nlm.nih.gov/pubmed/26510934 10.1177/1545968315613863 26510934 Levin_etal2015 2015 continuing periodical academic journal 1545-9683 1