Table 3. The results of subgroup analysis according to exercise frequency.
| Type of exercise | Exercise duration (weeks) |
Exercise frequency (sessions per week) |
Number of trials | Effect size [95% CI] |
Heterogeneity within subgroup |
Heterogeneity between subgroups |
|---|---|---|---|---|---|---|
| (I2 value) | (I2 value) | |||||
| SE | Up to 8 | Up to 3 | 9 | −1.06 [−1.50, −0.61] |
74% | Not applicable |
| More than 4 | 0 | Not estimable | Not applicable | |||
| More than 9 | Up to 3 | 4 | −0.23 [−0.40, −0.06] |
0% | 84% | |
| More than 4 | 4 | −0.58[−0.78, −0.37] | 0% | |||
| AE | Up to 8 | Up to 3 | 2 | −0.43 [−0.77, −0.08] |
0% | 0% |
| More than 4 | 1 | −0.58 [−1.46, 0.30] |
Not applicable | |||
| More than 9 | Up to 3 | 3 | −0.41 [−0.62, −0.21] |
13% | Not applicable | |
SE: Strengthening exercise, AE: Aerobic exercise, CI: Confidence interval