GOAT (Gait Observation of Achilles Tendon)

Inclusion Criteria: Study population: • Cognitive abilities compatible with the experiment: no language or judgement disorders preventing understanding of the research or expression of consent. An aphasia severity score greater than or equal to 3 on the Boston Diagnostic Aphasia Examination (BDAE) scale will be required for inclusion. Post-stroke population: * Adult male or female * Patient who has had a stroke \> 7 days ago * Patient hospitalised (in conventional hospitalisation or day hospital) in the neurological physical and medical rehabilitation department of Nantes University Hospital * Patients with voluntary motor function rated between 2 and 4 on the MRC (Medical Research Council) scale at the GM level * Patients classified as 3 to 8 on the New Functional Ambulation Classification * Indication to perform a quantified gait analysis as part of clinical management Post-spinal cord injury population: * Adult men or women * Patients with incomplete spinal cord injury graded ASIA AIS C or D from C2 to L5 * Patients hospitalised (in conventional hospitalisation or day hospital) in the neurological physical and occupational therapy department of Nantes University Hospital * Patients with voluntary motor function rated between 2 and 4 on the MRC (Medical Research Council) scale at GM level * Patients rated 13-20 on the WISCI-II scale * Indication for a quantified gait analysis as part of clinical care Healthy population: • Adult men or women with no nervous system di…