Back to Search
Start Over
Muscle volume as a predictor of maximum force generating ability in the plantar flexors post-stroke
Muscle volume as a predictor of maximum force generating ability in the plantar flexors post-stroke
- Source :
- Muscle & Nerve. 48:971-976
- Publication Year :
- 2013
- Publisher :
- Wiley, 2013.
-
Abstract
- Introduction: Post-stroke muscle weakness is commonly thought to be the result of a combination of decreased voluntary activation and decreased maximum force generating ability (MFGA). We assessed the ability of muscle volumes obtained using MRI to estimate the MFGA of the plantar flexor muscle group in individuals post-stroke. Methods: MRI was used to measure muscle volume of the plantar flexor muscle group in 17 individuals with post-stroke hemiparesis. A modified burst superimposition test was used to measure force of volitional contraction and predict the MFGA of the plantar flexors. Results: While muscle volume obtained by means of MRI provided information on the overall size of muscle, it overestimated the force generating ability of the paretic plantar flexors. Conclusions: Results suggest that MRI-derived muscle volume underestimates the functional impairment in individuals post-stroke. Interestingly, the central activation ratio had a strong relationship with the maximum volitional force of contraction. Muscle Nerve 48: 971–976, 2013
- Subjects :
- medicine.medical_specialty
Contraction (grammar)
medicine.diagnostic_test
Physiology
business.industry
Muscle weakness
Magnetic resonance imaging
Anatomy
Electromyography
Muscle volume
Plantar flexion
body regions
Cellular and Molecular Neuroscience
Physical medicine and rehabilitation
Hemiparesis
Physiology (medical)
medicine
Neurology (clinical)
medicine.symptom
business
Muscle contraction
Subjects
Details
- ISSN :
- 0148639X
- Volume :
- 48
- Database :
- OpenAIRE
- Journal :
- Muscle & Nerve
- Accession number :
- edsair.doi...........eb402f755bde13b4dd63d07d56fa9cd9
- Full Text :
- https://doi.org/10.1002/mus.23835