Table 3 Subgroup analysis of exercise types and doses on overall motor symptoms in Parkinson's disease patients
| Â | Overall motor symptoms | ||||
|---|---|---|---|---|---|
SMD [95% CI] | S (I) | N | I2 (%) | p | |
Pooling effects | SMD = -0.29 [-0.45, -0.13] | 9 (11) | 312 | 5 |  < 0.0001 |
Exercise types | |||||
 Aerobic exercise | SMD = -0.24 [-0.44, -0.04] | 5 (6) | 136 | 0 | 0.019 |
 Mix exercise | SMD = -0.35 [-0.57, -0.12] | 4 (5) | 176 | 28 | 0.011 |
Exercise period (weeks) | |||||
 ≤ 8 | SMD = -0.46 [-1.07, 0.14] | 3 (3) | 90 | 54 | 0.133 |
 > 8–16 | SMD = -0.60 [-1.11, -0.08] | 2 (2) | 64 | 27 | 0.023 |
 > 16 | SMD = -0.25 [-0.41, -0.08] | 5 (6) | 158 | 0 | 0.004 |
Frequency (times/week) | |||||
 ≤ 3 | SMD = -0.26 [-0.41, -0.11] | 6 (8) | 248 | 0 | 0.001 |
 > 3 | SMD = -0.58 [-1.13, -0.03] | 3 (3) | 64 | 39 | 0.037 |
Total number of courses | |||||
 ≤ 30 | SMD = -0.46 [-1.07, 0.14] | 3 (3) | 90 | 54 | 0.133 |
 > 30–60 | SMD = -0.47 [-0.74, -0.19] | 1 (2) | 54 | 0 | 0.001 |
 > 60 | SMD = -0.22 [-0.41, -0.04] | 5 (6) | 168 | 0 | 0.018 |
Weekly exercise time (minutes) | |||||
 ≤ 90–120 | SMD = -0.24 [-0.39, -0.09] | 5 (7) | 234 | 0 | 0.001 |
 > 120 | SMD = -0.59 [-1.01, -0.17] | 4 (4) | 78 | 24 | 0.006 |