New sEMG electrode placement for calf muscles after stroke

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Surface electromyography (sEMG) recordings of the triceps surae are sensitive to where electrodes are placed, and standard SENIAM landmarks can miss individual muscle variations after stroke. Investigators developed EPICA (Electrode Placement for Individual Calf Anatomy) guidelines that use individual anatomy to guide placement and have been tested in healthy volunteers. In this observational validation, people with hemiparesis after stroke will have electrode positions determined on the affected side using imaging (3D freehand ultrasound) and sEMG recordings during rest and walking when possible to compare EPICA placements with standard locations. All procedures occur at Ghent University Hospital and no experimental treatments are given.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Adult individuals who have experienced a stroke (CVA or cerebrovascular accident).
* Have no other neurological disorder.
* Are able to lie in the prone position for approximately one and a half hours.
* Are able to walk without shoes for the walking component (only applicable to participants who will perform walking). The use of an assistive device such as a walking stick (or similar) is permitted.

Exclusion Criteria:

* Presence of other neurological or orthopedic conditions that may influence the measurements and results (e.g., Parkinson's disease, peripheral neuropathy of the lower limbs, severe ankle osteoarthritis limiting range of motion, etc.).
* Having undergone a surgical intervention on the hemiparetic lower leg (e.g., ankle joint arthrodesis, etc.).
* Severe cognitive impairments that prevent understanding participation in the study (assessed using the AbilityQ).

Where it's running

• Ghent University Hospital
  Ghent, Oost-Vlaanderen, Belgium Recruiting

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.