Medico-economic Evaluation Rehabilitation by Serious Games at Home for the Management of Patients With Parkinson's Disease Suffering From Gait and Balance Disorders

Inclusion Criteria: 1. Diagnosis of idiopathic Parkinson's disease (according to United Kingdom Parkinson's Disease Society Brain Bank \[UKPDD\] criteria) ; 2. Age ≥ 18 years ; 3. Patient with gait and/or balance disorders not improved by levodopa treatment with item 12 "walking and balance" ≥ 1 of the MDS-UPDRS (Movement-Disorders Society-Unified Parkinson's disease rating scale) part II, ON levodopa and/or item 13 of "gait freezing" ≥ 1 (Goetz, Tilley et al. 2008); 4. Number of falls ≥ 2 in the previous year; 5. Stable antiparkinsonian treatments for at least 1 month prior to inclusion in the study ; 6. Patient with social health insurance ; 7. Person who voluntarily and informedly agreed to participate in the study (signed written consent) ; 8. Other medical problems that are stable or do not interfere with the proposed protocol; Exclusion Criteria: 1. Parkinson's disease with Hoehn\&Yahr stage 5 corresponding to an inability of the subject to stand or walk alone ; 2. Dementia (MMS \< 24 and/or MoCA \< 18) ; 3. Presence of an impulse control disorder defined by item 6 of the MDS-UPDRS part I \> 2 ; 4. Absence of internet connection at home ; 5. Serious pathology interfering with the test ; 6. Estimated life expectancy of less than 2 years ; 7. Subject in a period of exclusion from further research ; 8. Persons under guardianship, curatorship or any other administrative or judicial measure of deprivation of rights and liberty ; 9. Pregnant woman or woman of childbearing age without contraceptive methods;