Table 3.  Descriptive characteristics of children with valid habitual physical activity data.

VARIABLE

Mean or median

*SD or IQR

Range

Sample size

47

   

Age (y)

9.2**

9.0, 9.9

8.3-10.1

Height (m)

1.34 **

1.30, 1.40

1.09-1.55

Weight (kg)

31.3**

27.3, 34.9

17.4-52.0

Body mass index (kg·m-2)

16.9**

15.4, 18.8

13.7-26.3

Sitting height (cm)

68.7

3.8

60.0-80.0

Waist circumference (cm)

58.1**

54.5, 62.4

45.8-78.8

VO2peak (ml·kg-1·min-1)

46.2

6.7

35.0-60.0

Systolic blood pressure (mmHg)

104.0**

97.0, 110.3

87.3-133.7

Diastolic blood pressure (mmHg)

62.3**

60.0, 65.7

48.0-78.7

* METs estimated from previously published work. METs for standing and catching: (Ridley *SD = standard deviation, IQR = inter-quartile range. **Median and IQR presented.