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. 2021 Jan 6;7(1):e000957. doi: 10.1136/bmjsem-2020-000957

Table 2.

The averaged PA and SB parameters compared between normal and overweight/obese BMI subgroups

Variables Normal
BMI group*
Overweight/obese
BMI group
Number of participants, n 85 39
BMI (kg/m²), mean (SD) 21.1 (2.4)† 29.9 (5.7)
Fat percentage (%), mean (SD) 23.0 (7.8)† 29.3 (10.5)
Time in SB (min/day), mean (SD) 761.8 (56.7) 740.4 (66.0)
Time in light PA (min/day), mean (SD) 124.8 (34.8) 136.7 (38.4)
Time in MVPA (min/day), mean (SD) 40.7 (20.3) 46.2 (18.7)
% time spent in SB, mean (SD) 82.1 (4.9)† 80.2 (5.0)
% time spent in light PA, mean (SD) 13.4 (3.7) 14.8 (4.0)
% time spent in MVPA, mean (SD) 4.4 (2.2) 5.0 (2.1)
Number meeting new PA guidelines (no MVPA bouts), n(%) 72 (84.7) 36 (92.3)
Time in ≥10 min MVPA bouts (min/day), mean (SD) 6.7 (8.3) 7.2 (10.1)
Number meeting bout-based PA guidelines (≥10 min MVPA bouts), n(%) 5 (5.9) 3 (7.7)
Axis-1 counts per minute, mean (SD) 243.3 (99.3)† 283.8 (101.1)
Peak 1 min step counts, mean (SD) 134.9 (17.7) 134.7 (17.8)
Daily step counts, mean (SD) 6738 (2377) 7005 (2469)
Daily step count categories:
Sedentary, n(%) 17 (20.0)
Low active, n(%) 40 (47.1)
Somewhat active, n(%) 19 (22.4)
Active, n(%) 7 (8.2)
Highly active, n(%) 2 (2.4) 2 (5.1)
Wear time (min/day), mean (SD) 927.3 (38.2) 923.2 (56.4)

*One participant did not provide valid accelerometer data meaning 85 participants with normal BMI were analysed for their accelerometer data.

†P≤0.05 between normal BMI and overweight/obese BMI groups.

BMI, body mass index; kg/m2, kilogram per square metre; MVPA, moderate-vigorous physical activity; n, number; PA, physical activity; SB, sedentary behaviour;SD, standard deviation.