Weakening of Corticomuscular Signal Coupling During Voluntary Motor Action in Aging


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BAYRAM M. S. B. , Siemionow V., Yue G. H.

JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES, vol.70, no.8, pp.1037-1043, 2015 (Peer-Reviewed Journal) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 70 Issue: 8
  • Publication Date: 2015
  • Doi Number: 10.1093/gerona/glv014
  • Journal Name: JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES
  • Journal Indexes: Science Citation Index Expanded
  • Page Numbers: pp.1037-1043
  • Keywords: Brain aging, Motor control, Biomarkers, AGE-RELATED-CHANGES, OLDER-ADULTS, MUSCLE, CORTEX, COHERENCE, TASK, SYNCHRONIZATION, OSCILLATIONS, CONTRACTION, PERFORMANCE

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.