Résumé
Theoretical models suggest trunk muscle activation compensates for spinal systems impairments. The purpose of this study was to determine if two populations (older adults and those recovered from a lower back injury (rLBI)) with spinal system impairments have similar muscle activation patterns to each other, but differ from controls. Trunk electromyograms collected from 12 older adults, 16 rLBI, and 19 controls during two dynamic tasks showed that older adults and rLBI had higher activation amplitudes, sustained temporal and more synergistic activation relative to controls. However, differences found between older adults and rLBI suggest that spinal system impairments differed between groups or that recent pain (rLBI) uniquely influenced muscle activation. This sheds light on our understanding of the relationship between spinal system impairments and muscle activation.
| Langue d'origine | English |
|---|---|
| Pages (de-à) | 222-238 |
| Nombre de pages | 17 |
| Journal | Journal of Motor Behavior |
| Volume | 51 |
| Numéro de publication | 2 |
| DOI | |
| Statut de publication | Published - mars 4 2019 |
Note bibliographique
Funding Information:This study was supported in part by grants from the Natural Sciences and Engineering Research Council of Canada (RGPIN 05775-2014 & 1100958) and the Nova Scotia Health Research Foundation (MED-SS-2014-9645).
Publisher Copyright:
© 2018, Copyright © Taylor & Francis Group, LLC.
ASJC Scopus Subject Areas
- Biophysics
- Orthopedics and Sports Medicine
- Experimental and Cognitive Psychology
- Cognitive Neuroscience
PubMed: MeSH publication types
- Journal Article
- Research Support, Non-U.S. Gov't