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Table 2 Descriptive statistics for variables of interest; n = 18 across 7305 days of data

From: Monitoring one heart to help two: heart rate variability and resting heart rate using wearable technology in active women across the perinatal period

Variable

M (SD)

Pre-pregnancy M (SD) n = 1796

First Trimester M (SD) n = 1225

Second Trimester M (SD) n = 1582

Third Trimester M (SD) n = 1072

Post-partum M (SD) n = 1630

Heart Rate Variability

56.00 (22.88)

66.91 (21.06)

57.85 (22.48)

51.08 (19.99)

41.40 (17.02)

56.98 (24.49)

Resting Heart Rate

62.54 (10.23)

58.13 (8.45)

62.73 (9.07)

65.44 (8.95)

69.64 (10.57)

59.73 (10.35)

Activity minutes - day

20.65 (31.94)

27.76 (34.11)

22.00 (32.73)

19.59 (33.52)

14.34 (26.36)

16.97 (29.04)

Activity minutes, moderate/vigorous - day

12.81 (20.75)

18.23 (24.93)

14.13 (22.53)

11.19 (18.23)

7.95 (14.76)

10.59 (18.52)

Strain

9.28 (3.77)

10.55 (4.03)

9.46 (4.06)

8.70 (3.51)

7.77 (3.22)

9.25 (3.20)