Journal
TOPICS IN STROKE REHABILITATION
Volume 20, Issue 6, Pages 537-543Publisher
THOMAS LAND PUBLISHERS, INC
DOI: 10.1310/tsr2006-537
Keywords
EMG-force relation; FDI muscle; hemiparetic stroke
Categories
Funding
- Brinson Stroke Foundation
- National Institute on Disability and Rehabilitation Research of the US Department of Education [H133F110033]
- National Institutes of Health of the US Department of Health and Human Services [2R24 HD050821]
- 1000 Talents Plan Special Program of China (Recruitment Program of Global Experts)
Ask authors/readers for more resources
Objective: This study examines the electromyogram (EMG)-force relations observed in the first dorsal interosseous (FDI) muscle of hemiparetic stroke survivors. Methods: Fourteen stroke subjects were instructed to perform different levels of index finger abduction using their paretic and contralateral hands, respectively. Surface EMG and force signals were recorded from the FDI muscle. The EMG-force relation was constructed using linear regression of the EMG amplitude and force measurements. Results: We found that there were diverse changes in the slope of the EMG-force relations in paretic muscles compared with contralateral muscles, with significant increases and decreases being observed relative to the contralateral side. Regression analysis did not verify strong correlations between the ratio of paretic and contralateral muscle EMG-force slopes and any clinical parameters. Conclusions: These findings suggest that there appear to be different types of processes (eg, motor unit control property changes, muscle fiber atrophy, spinal motoneuron degeneration, muscle fiber reinnervation, etc) at work post stroke that may impact the EMG-force relations and that may be present in varying degree in any given stroke survivor.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available