Table 1 Descriptive characteristics and weekday, weekend and after-school physical activity of boys (n = 389) and girls (n = 467) by level of children’s independent mobility (CIM) (Toronto, Ontario, Canada; 2010–2011)

Sample size

119

270

213

254

Age (years)

10.9 (0.6)

11.1 (0.6)^a

11.0 (0.6)

11.1 (0.6)

Height (cm)

145.7 (7.8)

147.8 (7.2)^a

146.8 (8.3)

147.9 (10.2)

Weight (kg)

41.3 (10.7)

42.7 (10.9)

40.6 (9.4)

41.1 (9.3)

Body mass index (kg^.m^-2)

19.2 (3.8)

19.4 (3.9)

18.7 (3.2)

18.5 (3.2)

BMI category‡

Normal weight, %

61.3

70.0

73.1

74.4

Overweight or obese, %

38.7

30.0

26.9

25.6

Weekday physical activity

Total counts (counts.day^-1)

472530.2 (118847.7)

509174.8 (140120.3)^a

379470.3 (102001.4)

406276.1 (110737.3)^a

Light activity (min)

190.6 (33.2)

193.0 (33.4)

169.5 (30.1)

173.6 (32.1)

MVPA (min)

36.1 (14.6)

40.4 (16.1)^a

24.9 (11.0)

27.5 (12.1)^a

Time spent sedentary (%)

77.3 (4.9)

76.5 (5.4)

80.6 (4.2)

79.2 (4.8)^b

Weekend physical activity

Total counts (counts.day^-1)

360493.0 (131742.8)

395607.5 (179477.2)^a

287227.3 (109164.1)

341835.3 (172700.0)^a

Light activity (min)

164.2 (40.3)

168.5 (50.0)^a

143.0 (39.8)

151.0 (39.1)

MVPA (min)

24.2 (14.6)

27.5 (16.7)^a

16.9 (10.7)

20.9 (15.2)

Time spent sedentary (%)

80.2 (5.4)

79.2 (7.1)

82.8 (5.6)

81.0 (6.0)

After-school physical activity

% time sedentary

72.2 (8.9)

68.0 (9.5)^b

74.6 (6.9)

72.4 (7.6)^b

% time in light activity

23.7 (7.2)

26.2 (7.3)^a

22.2 (5.6)

23.7 (6.4)^a

% time in MVPA

4.2 (2.9)

5.9 (3.6)^a

3.2 (2.2)

3.9 (2.5)^a