Table 2.
Peak treadmill test results and pre and post exercise fetal heart rate and Doppler indices in Highly Active women with and without fetal heart rate decelerations
| Variable | Highly Active - No Decelerations (n=10) |
Highly Active - Decelerations (n=5) |
P |
|---|---|---|---|
| Gestational Age (weeks) | 30.2 ± .9 | 30.7 ± 1.2 | .327 |
| Treadmill time (minutes) | 22.8 ± 2.9 | 21.2 ± 2.7 | .178 |
| Maternal peak heart rate | 169.4 ± 10.6 | 178.4 ± 12.5 | .391 |
| Percent of predicted maternal max heart rate | 90.3 ± 5.1 | 95.9 ± 5.3 | .072 |
| Fetal heart rate | Group: <.001 | ||
| Pre | 137 ± 6.5 | 142.8 ± 10.4 | Time: <.001 |
| Post | 149.3 ± 10.6 | 81.8 ± 10.01 | Interact: <.001 |
| Umbilical Artery S/D Ratio | Group: .012 | ||
| Pre | 2.70 ± .25 | 2.67 ± .31 | Time: .035 |
| Post | 2.46 ± .21 | 3.19 ± .41 | Interact: <.001 |
| Umbilical Artery RI | Group: .029 | ||
| Pre | .63 ± .03 | .62 ± .05 | Time: .018 |
| Post | .59 ± .03 | .67 ± .05 | Interact: .001 |
| Umbilical Artery PI | Group: .026 | ||
| Pre | .90 ± .07 | .90 ± .10 | Time: .065 |
| Post | .83 ± .07 | 1.05 ± .15 | Interact: .001 |
| Uterine Artery S/D Ratio | Group: .180 | ||
| Pre | 1.97 ± .32 | 2.00 ± .36 | Time: .876 |
| Post | 1.99 ± .32 | 2.55 ± .63 | Interact: .018 |
| Uterine Artery RI | Group: .240 | ||
| Pre | .48 ± .07 | .49 ± .09 | Time: .829 |
| Post | .48 ± .07 | .59 ± .11 | Interact: .029 |
| Uterine Artery PI | Group: .189 | ||
| Pre | .64 ± .13 | 0.64 ± .16 | Time: .913 |
| Post | .64 ± .13 | 0.89 ± .30 | Interact: .027 |
Data are mean ± Standard Deviation. S/D: Systolic to Diastolic ratio; RI: Resistance Index; PI: Pulsatility Index.
P values: Mixed effects regression analysis. Include main effects for group and time (pre and post exercise) and group × time interaction.