Weakening of Corticomuscular Signal Coupling During Voluntary Motor Action in Aging.

ABSTRACT:

Background

Aging is associated with muscle weakness and impairment in performing skilled motor tasks. Still, little is known about whether the link or functional coupling or connection between the central and peripheral systems during voluntary motor performance is compromised in the elderly subjects. The purposes of this study were to estimate functional corticomuscular connection (CMC) strength in the elderly subjects by calculating EEG-EMG coherence during voluntary motor performance, determine the relationship between the CMC and voluntary muscle force, and compare these between the old and the young subjects.

Methods

Maximal voluntary contraction (MVC) of elbow flexion (EF) and EFs at three submaximal (20%, 50%, and 80% MVC) levels were performed in 28 healthy older (74

SUBMITTER: Bayram MB 

PROVIDER: S-EPMC4573669 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature