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Table 2 Overview of maternal cardiovascular activity

From: Acute relaxation during pregnancy leads to a reduction in maternal electrodermal activity and self-reported stress levels

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

  1. All values are baseline corrected. Maternal Heart Rate (HR), Root Mean Square of Successive Differences (RMSSD). T1-T2: Relaxation phase; T3-T4: Recovery phase