| First author, year, country | Sample size | Mean age (year) | Hoehn and Yahr stage | Treatment duration (week) | Main outcome assessments | Experimental group intervention | Control group intervention |
| Hackney, 2008, US [12] | 33 | 64 | 1.5–3 | 10–13 | UPDRS III, BBS, gait, TUG, six-minute walk | Yang-style Tai Chi (60 min/20 sessions) | No intervention | Hackney, 2009, US [13] | 75 | 67 | 1–3 | 13 | PDQ-39 | Yang-style Tai Chi (60 min/20 sessions) | (1) Tango (2) Waltz/Foxtrot (3) No intervention (60 min/20 sessions) | Li, 2011, China [14] | 56 | 68 | 2.5–3 | 8 | UPDRS III, BBS, PDQ-39 | Tai Chi (30–45 min/80 sessions) | Walking (40 min/80 sessions) | Zhu, 2011, China [15] | 40 | 64 | 1-2 | 4 | UPDRS III, BBS | Tai Chi (30–45 min/40 sessions) | Walking (40 min/40 sessions) | Li, 2012, US [10] | 195 | 69 | 1–4 | 24 | UPDRS III, gait, TUG, functional-reach test | Tai Chi (60 min/48 sessions) | (1) Stretching (2) Resistance training (60 min/48 sessions) | Amano, 2013, US [11] | 45 | 66 | 2-3 | 16 | UPDRS III, gait | Yang-style Tai Chi (60 min/32–48 sessions) | (1) Qigong (60 min/32 sessions) (2) No intervention | Choi, 2013, US [16] | 22 | 63 | 1-2 | 12 | UPDRS, TUG, gait, six-minute walk, one-leg standing | Tai Chi (60 min/36 sessions) | No intervention | Nocera, 2013, US [17] | 23 | 66 | 2-3 | 16 | Cognitive-executive function, PDQ-39 | Yang-style Tai Chi (60 min/48 sessions) | No intervention | Gao, 2014, China [18] | 80 | 69 | 1–4 | 12 | UPDRS III, BBS, TUG | Yang-style Tai Chi (60 min/36 sessions) | No intervention |
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