Inclusion Criteria:  a minimum of six month elapsed time since stroke incidence present balance disorders (score between 21 and 51 on the Berg Balance Scale) ability to stand and walk at least 10 metres (with or without an assistance device) be affiliated to a social security system  Exclusion Criteria:  under 18 years of age cognitive impairment assessed by a score of less than 4 on the 6-items Mini-Mental State Examination inability to understand the French language (to the point of not being able to answer questionnaires, or understand instruction) medical contraindication to the practice of a sport activity current and regular participation in a physical activity program Being deprived of liberty by a judicial or administrative decision, Receive psychiatric care, Be subject to a legal protection measure (guardianship, curatorship and safeguarding of justice), Being a pregnant, parturient or breastfeeding woman