Table 1.

Selection criteria.

Category	Inclusion criteria	Exclusion criteria
Population	Aged 20–85 years;diagnosed with Idiopathic Parkinson's (IPD) and Hoehn and Yahr scale (H&Y).	Other specific diseases
Intervention	Aerobic exercise; Treadmill training; Nordic Walking and Multi component exercise program (Aerobic exercise combined with resistance exercise or multiple aerobic exercises). Resistance exercise: Power training; Strength Training; Weight Lifting Exercise Program; Multi component exercise program (Aerobic exercise combined with resistance exercise or multiple resistance exercises).	Taichi, Qigong and other physical and mental exercises; dance training; stretching, balance; flexibility training; multimodal training.
Comparator	There is only a passive control (i.e., without any regular training) that allows for normal drug taking.	Other types of active exercises (tai chi, qigong and other mind-body exercises mentioned above; dance training; balance training; flexibility training; multimodal training, etc.)
Outcome	Unified Parkinson's Disease Motor Rating Scale, UPDRS III; walking ability was evaluated by a 6-minute walk test, 6MWT; 10-meter walk test, TWM; and time up and go, TUG. Parkinson's Disease Quality of Life Scale-39 (PDQ-39)	Strength training indicators: muscle strength, muscle hypertrophy, etc.; neurological test-related indicators, etc.
Study design	Randomized controlled trials	Quasi RCTs, animal trials, clinical protocols, meeting abstracts, case reports, and systematic reviews.