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Table 1 Sample characteristic

From: Composition of weekly physical activity in adolescents by level of physical activity

Gender/level of PA

N

Age (Years)

Weight (kg)

Height (cm)

BMI (kg·m− 2)

Steps/day

M

SD

M

SD

M

SD

M

SD

M

SD

Boys-lower

230

16.68

0.97

68.90

12.99

177.10

6.83

21.92

3.71

7168

1399

Boys-middle

248

16.64

0.89

66.75

10.83

177.13

7.50

21.23

2.88

10,755

1106

Boys-higher

172

16.31

0.84

66.91

11.74

176.76

8.30

21.32

2.85

15,716

2299

Girls-lower

375

17.00

0.91

56.93

8.93

166.47

6.23

20.52

2.88

7238

1287

Girls-middle

422

16.77

0.95

56.54

7.96

165.79

5.86

20.54

2.45

10,845

1117

Girls-higher

152

16.70

0.95

57.99

9.20

166.73

6.31

20.80

2.61

15,281

2163

  1. M Mean, SD Standard deviation, BMI Body mass index, lower (mean < 9000 steps/day), middle (mean = 9000–12,999 steps/day), higher (mean ≥ 13,000 steps/day)