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Table 2 Daily activity profile including sit/lie and upright time during the 2 nd and 3 rd trimester (n = 40)

From: Adherence to physical activity guidelines in mid-pregnancy does not reduce sedentary time: an observational study

activPAL™ Gestation length (weeks) P-value a
Week 18 Week 35
Sit/lie time
Sit/lie time (includes all sleep) (hrs∙d−1) 18.2 (17.1-19.0) 18.3 (17.6-19.4) 0.29
Sit/lie (% of day) 76 (71–79) 76 (73–81) 0.29
Number of sit/lie bouts (number∙d−1) 35 (25–44) 46 (30–59) 0.003
Length of sit/lie bout (min∙d−1) 32 (24–42) 22 (18–37) 0.003
Number of transitions between sedentary (sit/lay) to upright (∙d−1) 35 (25–45) 48 (31–65) 0.002
Upright
Upright time (includes stepping & standing time) (hrs∙d−1) 5.8 (5.0-6.9) 5.7 (4.6-6.4) 0.29
Stepping time (hrs∙d−1) 3.5 (2.4-4.5) 2.1 (1.4-3.4) <0.001
Standing time (hrs∙d−1) 2.1 (1.6-2.9) 3.3 (1.9-4.6) 0.001
Upright (% of day) 24 (21–29) 24 (19–27) 0.29
Number of upright bouts (∙d−1) 34 (25–45) 44 (30–59) 0.003
Length of upright bout (min∙d−1) 10 (7–14) 7 (6–12) <0.001
Steps
Steps (number∙d−1) , 10,102 (7329–12,408) 7323 (6187–10,151) <0.001
  1. Significance was set at P < 0.05. Values reported as median (interquartile range).
  2. aWilcoxon rank-sum test.