Table 3 SED and activity across pregnancy by randomized group (ITT, n = 49)

SED

 SED total, hr/day

  Intervention

10.42 (0.28)

9.69 (0.29)

9.62 (0.29)

-0.84 (0.36)

0.019

  Control

10.52 (0.40)

10.66 (0.37)

10.38 (0.34)

ref.

 SED30, hr/day

  Intervention

6.34 (0.36)

5.30 (0.37)

5.20 (0.42)

-0.99 (0.40)

0.014

  Control

5.98 (0.61)

5.96 (0.62)

5.91 (0.61)

ref.

 SED60, hr/day

  Intervention

3.82 (0.39)

2.56 (0.32)

2.44 (0.41)

-1.05 (0.39)

0.008

  Control

3.26 (0.59)

3.30 (0.61)

2.95 (0.55)

ref.

Activity

 Standing, hr/day

  Intervention

2.79 (0.20)

3.43 (0.26)

3.81 (0.26)

0.77 (0.26)

0.003

  Control

2.74 (0.29)

2.80 (0.28)

2.81 (0.31)

ref.

 Stepping, hr/day

  Intervention

1.14 (0.09)

1.50 (0.11)

1.48 (0.13)

0.20 (0.13)

0.132

  Control

1.38 (0.18)

1.46 (0.17)

1.41 (0.19)

ref.

 Stepping75, min/day

  Intervention

16.17 (2.84)

22.84 (3.83)

21.16 (3.79)

2.61 (3.78)

0.491

  Control

18.47 (3.87)

21.40 (5.05)

21.33 (4.18)

ref.

 Stepping100, min/day

  Intervention

9.76 (2.22)

12.82 (2.45)

10.18 (2.39)

-0.79 (2.41)

0.745

  Control

10.55 (3.02)

12.10 (3.86)

13.13 (3.18)

ref.

 Steps per day

  Intervention

5224 (502)

6929 (553)

6777 (656)

710 (627)

0.257

  Control

6268 (895)

6775 (913)

6479 (919)

ref.