PD	Parkinson Disease
pwPD	people with Parkinson Disease
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
CENTRAL	Cochrane Central Register of Controlled Trials
RCTs	Randomized controlled trials
UPDRS	Unified Parkinson’s Disease Rating Scale
H&Y	Hoehn and Yahr
RoB 2	Version 2 of the Cochrane risk-of-bias tool for randomized trials
SDs	Standard Deviations
MD	Mean Difference
SMD	Standardized Mean Difference
CI	Confidence Interval
GRADE	Grading of Recommendation Assessment, Development and Evaluation
FES-I	Falls Efficacy Scale International
ABC	Activity-specific Balance Confidence Scale
PDQ-39	Parkinson’s Disease Questionnaire
SF-36	Short Form Health survey