Table 1 Descriptive characteristics of the participants, weight and physical activity status

 Age, years

9.8

1.3

9.6

to

10.0

9.9

1.2

9.7

to

10.0

 Body height, cm

142.5

8.9

141.3

to

143.7

143.8

9.4

142.3

to

145.2

 Body weight, kg

35.8

8.8

34.6

to

37.0

37.4

9.2

36.0

to

38.9

 BMI, kg · m⁻²

17.4

2.8

17.0

to

17.8

17.9

2.8

17.4

to

18.3

 Underweight

 Normal weight

 Overweight

 Obesity

 Sedentary time, min · d⁻¹

394.4

51.7^*

387.4

to

401.5

379.3

48.5

371.6

to

386.9

 Light physical activity, min · d^–1b

106.8

27.3^*

103.1

to

110.5

117.0

36.2

111.2

to

122.7

 MVPA, min · d^–1b

37.4

16.7^*

35.1

to

39.6

46.7

21.3

43.4

to

50.1

 Vigorous physical activity, min · d^–1b

5.3

6.6

4.4

to

6.2

5.2

5.9

4.3

to

6.2

 Steps per day

10 465

2 394^*

10 138

to

10 791

11 176

2 949

10 709

to

11 642

 Achieve ≥60 min · d⁻¹of MVPA, N (% of N)

 Number of days with wear time ≥10 h^c

 Wear time, h · d⁻¹

12.8

0.9

12.7

to

12.9

13.0

0.9

12.9

to

13.2