Clinical Research Directory

Inclusion Criteria for children with cerebral palsy: * Participants with cerebral palsy who are able to walk, GMFCS stages I through III, hemiplegic, diplegic, or quadriplegic * Aged 7 to 17 years * With palpable contractions of the target muscles (triceps surae and tibialis anterior) (≥ 1 on the Medical Research Council \[MRC\] scale) * Having received verbal and written information about the protocol, having agreed to participate in this study, and having signed a consent form if the participant is 15 years of age or older * Signed consent for participation from the participant's legal guardians * Enrolled, either personally or through their parents, in a social security program Inclusion Criteria for adults with hemiparesis * Stroke in the subacute or chronic phase * Aged 18 to 85 years * With palpable contractions of the target muscles (triceps surae and tibialis anterior) (≥ 1 on the Medical Research Council \[MRC\] scale) * Having received verbal and written information about the protocol and having signed a consent form to participate in this study * Enrolled in a social security program Inclusion Criteria for Healthy subjects matched for age to the group of participants with hemiparesis * Aged 18 to 85 * No neurological disorders * Who received verbal and written information about the protocol and signed a consent form to participate in this study. Exclusion Criteria: * Surgery on the lower extremities within the past 6 months * A botulinum toxin injection into the triceps surae and/or the tibialis anterior within the past 3 months * Pain during dorsiflexion or plantarflexion of the ankle joint * Cognitive impairments limiting participation * A person referred to in Articles L1121-5, L1121-6, L2121-8, L1121-9 of the Public Health Code * Participating in another therapeutic or drug intervention study that could affect this study