Pedreira 2013.

Methods	Single‐blinded RCT
Participants	44 people with Parkinson’s disease Inclusion criteria: clinical diagnosis of PD, H&Y I to III, 45 to 80 years old Exclusion criteria: dementia, uncontrolled hypertension, heart disease, psychiatric disorders
Interventions	Experimental group (EG: n = 22); control group (CG: n = 22) 3 times per week/4 weeks EG + CG: 10 min warmup EG: 40 min Nintendo Wii therapy CG: 40 min conventional physiotherapy including trunk and limb mobilisation, balance, muscle strengthening, rhythmic movement, postural alignment, dual task, bimanual, cardiorespiratory, and gait
Outcomes	Outcomes recorded at baseline, 4 weeks' follow‐up Primary outcome: UPDRS, PDQ‐39
Notes	Funding source: Brazilian National Institutes of Science and Technology (CITECS‐MCT‐CNPq) Registered on ClinicalTrials.gov (identifier: NCT01120392)
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Computerised randomisation
Allocation concealment (selection bias)	Low risk	Computerised randomisation
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Blinded
Incomplete outcome data (attrition bias) All outcomes	High risk	No intention‐to‐treat analysis, large dropout
Selective reporting (reporting bias)	Unclear risk	Protocol not publicly available