This study is being carried out in the context of rehabilitation after stroke, where persistent upper limb weakness is a major challenge. It aims to explore the relationship between observed function and patients' perceived participation in use.

Inclusion Criteria:

• First stroke as defined by the World Health Organization.
• Upper limb paresis with a NIHSS National Institutes of Health Stroke Scale score > or = 1/4 for upper limb motor function

Exclusion Criteria:

• Life expectancy <12 months
• Inability to understand French.
• Pre-existing severe multiple disability affecting arm function.
• Presence of pre-existing central neurological pathologies.
• Mini-Mental State Examination < 21

Patients who have suffered a first stroke will be selected on transfer to a neurological rehabilitation service. They will be recruited on admission, provided they meet the inclusion and exclusion criteria.

A combination of self-administered questionnaires and functional assessments will be carried out on the first day of multidisciplinary management in the neurological rehabilitation department and after two months in hospital.