Table 2 Correlation among study variables

1. MVPA [days/week]

–

2. teachers support (sten)

0.15*^a

–

3. parents support (sten)

0.12*^a

0.20*^a

–

4. peers support (sten)

0.09*^a

0.19*^a

0.37*^a

–

5. BMI [Cole]

0.24*^b

0.17^b

0.07^b

0.06^b

–

underweight vs normal weight

0.25*^b

underweight vs overweight

normal weight vs overweight

6. involvement in sports training

0.85*^b

0.10^b

0.19^b

0.07^b

1.18^c

–

no training vs amateur training

0.57*^b

no training vs professional training

0.90*^b

amateur training vs professional training

0.31*^b

7. gender

3.01*^d

1.64^d

−4.30*^d

−1.05^d

30.73*^c

0.40^c

Mean

3.62

5.68

5.66

6.00

SD

1.698

2.022

2.060

2.369

range (min-max)

0–7

2–10

1–10

1–10