Myoelectric interface training enables targeted reduction in abnormal muscle co-activation.

ABSTRACT:

Background

Abnormal patterns of muscle co-activation contribute to impaired movement after stroke. Previously, we developed a myoelectric computer interface (MyoCI) training paradigm to improve stroke-induced arm motor impairment by reducing the abnormal co-activation of arm muscle pairs. However, it is unclear to what extent the paradigm induced changes in the overall intermuscular coordination in the arm, as opposed to changing just the muscles trained with the MyoCI. This study examined the intermuscular coordination patterns of thirty-two stroke survivors who participated in 6 weeks of MyoCI training.

Methods

We used non-negative matrix factorization to identify the arm muscle synergies (coordinated patterns of muscle activity) during a reaching task before and after the

SUBMITTER: Seo G 

PROVIDER: S-EPMC9250207 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature