Cortex integrity relevance in muscle synergies in severe chronic stroke.

ABSTRACT:

Background

Recent experimental evidence has indicated that the motor system coordinates muscle activations through a linear combination of muscle synergies that are specified at the spinal or brainstem networks level. After stroke upper limb impairment is characterized by abnormal patterns of muscle activations or synergies.

Objective

This study aimed at characterizing the muscle synergies in severely affected chronic stroke patients. Furthermore, the influence of integrity of the sensorimotor cortex on synergy modularity and its relation with motor impairment was evaluated.

Methods

Surface electromyography from 33 severely impaired chronic stroke patients was recorded during 6 bilateral movements. Muscle synergies were extracted and synergy patterns were correlated w

SUBMITTER: Garcia-Cossio E 

PROVIDER: S-EPMC4172028 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature