Table 2.
Overview of maternal cardiovascular activity
| Type of intervention | HR (T1) | HR (T2) | HR (T3) | HR (T4) | RMSSD (T1) | RMSSD (T2) | RMSSD (T3) | RMSSD (T4) | |
|---|---|---|---|---|---|---|---|---|---|
| Music Group | Mean | − 1.66 | −.86 | −2.33 | − 2.48 | 5.19 | 7.42 | 8.70 | 7.50 |
| Standard error | .90 | .89 | .88 | 1.63 | 3.96 | 4.58 | 3.90 | 3.45 | |
| Standard deviation | 3.12 | 2.96 | 2.90 | 5.63 | 13.71 | 15.87 | 13.53 | 11.44 | |
| N | 12 | 11 | 11 | 12 | 12 | 12 | 12 | 11 | |
|
Guided Imagery Group |
Mean | −3.14 | −3.90 | −1.87 | −1.40 | 4.67 | 9.48 | 2.61 | −.39 |
| Standard error | .74 | 1.12 | .55 | .91 | 1.21 | 3.13 | .77 | 1.57 | |
| Standard deviation | 2.45 | 3.70 | 1.81 | 3.03 | 4.03 | 10.38 | 2.43 | 5.22 | |
| N | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 11 | |
| Resting Group | Mean | −1.09 | −2.25 | −2.44 | −2.58 | −1.05 | 6.89 | 1.40 | 9.92 |
| Standard error | .72 | 1.68 | .97 | 1.24 | 3.16 | 6.83 | 1.95 | 7.49 | |
| Standard deviation | 2.48 | 5.83 | 3.38 | 4.31 | 9.98 | 23.67 | 6.47 | 25.95 | |
| N | 12 | 12 | 12 | 12 | 10 | 12 | 11 | 12 | |
| All Groups | Mean | −1.93 | −2.33 | −2.22 | −2.17 | 3.13a | 7.88 | 4.42 | 5.80 |
| Standard error | .47 | .76 | .47 | .74 | 1.79 | 2.91 | 1.64 | 2.93 | |
| Standard deviation | 2.77 | 4.43 | 2.72 | 4.39 | 10.27 | 17.20 | 9.42 | 17.10 | |
| N | 35 | 34 | 34 | 35 | 33 | 35 | 33 | 34 | |
All values are baseline corrected. Maternal Heart Rate (HR), Root Mean Square of Successive Differences (RMSSD). T1-T2: Relaxation phase; T3-T4: Recovery phase