Adherence to physical activity prescriptions between groups
There was no difference between adherence to the physical activity
recommendations between groups (overall average: PMW: 29.6 ± 12.7
minutes; CTL: 29.9 ± 12.4, interaction: p = 0.12, Figure 2). In the PMW
group, adherence to 10 minutes of PMW after breakfast decreased
significantly by 35 weeks (28 weeks: 10.0 ± 6.1 minutes, 32 weeks: 14.7
± 10.9 minutes, 35 weeks: 5.3 ± 3.2 minutes; time: p = 0.04). Following
dinner (28 weeks: 7.6 ± 4.3 minutes, 32 weeks: 12.2 ± 3.3 minutes, 35
weeks: 7.5 ± 2.9 minutes; time: p = 0.02). Interestingly, there were no
differences in the intensity of physical activity (estimated using
cadence) between groups or across time (Table 1).
When groups were matched for pre-pregnancy BMI, outcomes were the same
(as above).
When looking at timing of walking, for the 30-min continuous bouts of
walking (CTL group), 25% of sessions were done in the morning (6am –
11am), 42% were done in the mid-afternoon (11am – 4pm), and 33% were
completed in the evening (4pm – 10pm). 18% (n = 23) of postmeal
walking bouts began 0 – 15 minutes after finishing their meal, 23% (n
= 30) began 15 – 30 minutes, 37% (n = 47) began 30 – 45 minutes, and
22% (n = 28) began 45 – 60 minutes after finishing their main meal.
[Figure 2]