Related Experiment Video
Updated: Jan 22, 2026
05:23
Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients
Published on: March 11, 2021
2.8K
Homosynaptic Depression of the Soleus Predicts Post-Stroke Gait Speed.
J Sebastián Correa1,2, Ricardo Siu1, Dana Lorenz1
1Department of Physical Medicine and Rehabilitation, The MetroHealth System, Case Western Reserve University, Cleveland, OH, USA.
Restorative Neurology and Neuroscience
|January 20, 2026
Summary
Individuals after stroke show altered homosynaptic depression (HD) of the soleus H-reflex, particularly at longer intervals. Reduced HD change correlates with faster gait speed, suggesting a role in post-stroke functional recovery.
Area of Science:
- Neuroscience
- Motor Control
- Rehabilitation Science
Background:
- Homosynaptic depression (HD) is a reduction in reflex magnitude after prior circuit activation.
- Previous studies suggest reduced soleus H-reflex HD post-stroke, but its functional relevance is unclear.
Purpose of the Study:
- To characterize soleus H-reflex HD in individuals with post-stroke gait impairments.
- To investigate the relationship between HD and functional gait measures post-stroke.
Main Methods:
- Measured soleus H-reflex homosynaptic depression using varying interstimulus intervals.
- Compared HD across intervals between individuals post-stroke and age-matched controls.
- Correlated HD measures with gait speed and other functional assessments.
Main Results:
- Individuals post-stroke exhibited reduced depression at longer (8s) interstimulus intervals compared to controls.
- No significant difference in the change of HD across intervals between groups was found, contrary to prior reports.
- A strong correlation was observed between faster gait speed and reduced change in depression in the stroke group.
Conclusions:
- Soleus H-reflex HD is altered post-stroke, particularly at longer intervals.
- Reduced change in HD is associated with better gait speed in individuals post-stroke.
- HD may play a role in functional recovery after stroke, warranting further investigation for therapeutic applications.
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