Inclusion Criteria:  Patients with minor cerebral infarction with NIHSS < or equal to 5 will be included in the protocol; Cerebral infarction occurring one month (±1 week) before the planned start of hypoxic exposure; Age ≥18 years; A first, unilateral, ischemic, supra-tentorial hemispheric stroke, confirmed by magnetic resonance imaging; Modified Rankin Scale score between 1 and 3, defining mild to moderate residual functional disability. A person affiliated with the social security system or benefits from such a system; A person who has given written informed consent.  Exclusion Criteria:  Patients who are minors or over 85 years of age, pregnant or breastfeeding women, or women of childbearing potential in the absence of highly effective contraception; Stroke of the brainstem or cerebellum ; Severe aphasia, limiting the ability to understand the protocol; History of central or peripheral neurological pathology; Modified Rankin Scale score >0 before stroke; Known severe untreated obstructive sleep apnea syndrome, defined as an apnea-hypopnea index ≥ 30 events per hour of sleep; Pre-existing hypoxemic lung disease (such as chronic obstructive pulmonary disease); Heart failure, defined as an ejection fraction ≤40% ; History of high altitude pathology; Scheduled stay at altitude (> 2500 m) during the study period ; Migraine; History of rheumatological or orthopedic disease of the lower limbs, amputation of the lower limb. Contraindication to magnetic resonance imaging; Subjects who cannot be contacted in an emergency; Subject in exclusion period of another study; Subject under administrative or judicial supervision; Persons referred to in Articles L1121-5 to L1121-8 of the "Code de la Santé Publique" (corresponds to all protected persons: pregnant women, women in labor, nursing mothers, persons deprived of their liberty by judicial or administrative decision, persons subject to a legal protection measure).