Boys

Girls

p-values

Low weight

Normal weight

Overweight

Obese

Low weight

Normal weight

Overweight

Obese

sex

BMI category

Sex & BMI category

N (%)

13 (6.7%)

127 (65.1%)

37 (19.0%)

8 (9.2%)

13 (8.2%)

116 (73.0%)

21 (13.2%)

9 (5.8%)

Age (years)

14.6 ± 0.4

14.6 ± 0.4

14.5 ± 0.4

14.7 ± 0.3

14.5 ± 0.3

14.5 ± 0.4

14.6 ± 0.4

14.6 ± 0.3

0.454

0.780

0.362

BMI (kg/m²)

15.7 ± 1.2***

19.8 ± 1.7

25.1 ± 1.2***

31.0 ± 2.0***

16.4 ± 0.6***

20.4 ± 1.8

25.8 ± 1.7***

31.9 ± 3.1***

0.007

<0.001

0.914

Body fat (%)

11.5 ± 1.4**

15.4 ± 3.4

22.9 ± 5.0***

31.6 ± 3.9***

19.4 ± 2.2***

24.8 ± 3.2

31.3 ± 3.0***

36.9 ± 2.0***

<0.001

<0.001

0.034

CMJ (cm)

37.0 ± 6.7

39.0 ± 5.4

37.3 ± 5.2

33.1 ± 5.5***

32.7 ± 4.0

29.9 ± 4.9

27.5 ± 4.7

23.1 ± 2.7***

<0.001

<0.001

0.117

20 m sprint (s)

3.67 ± 0.34

3.60 ± 0.23

3.75 ± 0.24**

3.96 ± 0.28***

4.18 ± 0.31

4.29 ± 0.30

4.37 ± 0.28

4.71 ± 0.35***

<0.001

<0.001

0.268