Table 1.
Relative risk (RR) with 95% CIs for the network comparisons on total pregnancy and live birth rates
| Outcomes | No. of Studies | Sample Size | RR | 95% CI |
|---|---|---|---|---|
| Pregnancy rate | ||||
| CET vs MICT | 1 | 129 | 1.04 | (0.33-3.25) |
| CET vs NON-EX | 2 | 651 | 27.81 | (13.34-57.97) |
| CET vs RT | 1 | 126 | 2.22 | (0.74-6.61) |
| HICT vs HIIT | 1 | 127 | 1.20 | (0.35-4.04) |
| HICT vs MICT | 1 | 128 | 0.21 | (0.06-0.70) |
| HICT vs NON-EX | 2 | 520 | 5.55 | (2.37-13.00) |
| HIIT vs MICT | 1 | 131 | 0.17 | (0.05-0.59) |
| HIIT vs NON-EX | 2 | 553 | 4.63 | (1.94-11.02) |
| MICT vs NON-EX | 3 | 650 | 26.67 | (11.18-63.63) |
| MICT vs RT | 1 | 127 | 2.12 | (0.65-6.97) |
| RT vs NON-EX | 2 | 534 | 12.54 | (5.58-28.19) |
| Live birth rate | ||||
| CET vs MICT | 1 | 129 | 0.22 | (0.01-3.52) |
| CET vs NON-EX | 2 | 651 | 2.20 | (0.93-5.18) |
| CET vs RT | 1 | 126 | 0.45 | (0.06-3.26) |
| HICT vs HIIT | 1 | 127 | 0.35 | (0.05-2.56) |
| HICT vs MICT | 1 | 128 | 0.15 | (0.01-2.45) |
| HICT vs NON-EX | 2 | 520 | 1.55 | (0.68-3.52) |
| HIIT vs MICT | 1 | 131 | 0.44 | (0.02-10.70) |
| HIIT vs NON-EX | 2 | 553 | 4.38 | (0.72-26.64) |
| MICT vs NON-EX | 3 | 650 | 10.05 | (0.71-141.35) |
| MICT vs RT | 1 | 127 | 2.04 | (0.08-49.85) |
| RT vs NON-EX | 2 | 534 | 4.92 | (0.82-29.52) |
CET, combined aerobic and resistance exercise training; HIIT, high-intensity interval training; HICT, high-intensity continuous training protocol; MICT, moderate-intensity continuous training; NON-EX, nonintervention control; RT, resistance training.