Control group

Significance

Girls

Boys

(n = 116)

(n = 133)

t

P

Global self-esteem

40.40 ± 1.40^***

36.64 ± 0.76

25.79

<0.001

Physical value

20.40 ± 1.86

27.72 ± 1.74^***

31.92

<0.001

Strength

16.41 ± 2.58

20.74 ± 1.65^***

5.5

<0.001

Endurance

20.21 ± 1.17

25.59 ± 2.41^***

97.00

<0.001

Sportive competence

20.40 ± 0.49

21.13 ± 2.67^***

3.11

<0.01

Demotivation

1.41 ± 0.49^***

0.64 ± 0.76

9.6

<0.001