Table 3 Baseline, mid-way and post-intervention characteristics for PA and SB determinants in the control and intervention group

Enjoyment

4.13

(0.76)

4.09

(0.77)

0.35

4.08

(0.75)

4.13

(0.78)

3.96

(0.83)

3.88

(0.90)

Self-efficacy

3.86

(0.76)

3.86

(0.79)

0.80

3.93

(0.75)

3.99

(0.78)

3.86

(0.82)

3.77

(0.89)

Social support from parents

2.37

(0.76)

2.38

(0.76)

0.83

2.45

(0.81)

2.42

(0.77)

2.31

(0.81)

2.24

(0.78)

Social support from teachers

1.68

(0.70)

1.76

(0.83)

0.07

1.61

(0.65)

1.75

(0.77)

1.47

(0.62)

1.61

(0.73)

Social support from friends

2.96

(1.00)

2.96

(1.04)

0.95

2.80

(0.99)

2.82

(0.97)

Environmental opportunities for PA

4.26

(0.77)

4.27

(0.76)

0.79

4.11

(0.89)

4.20

(0.90)

Parental regulation TV-viewing

3.64

(0.96)

3.68

(0.93)

0.43

3.41

(1.07)

3.38

(1.05)

Parental regulation computer/game-use

3.55

(0.99)

3.53

(1.01)

0.78

3.28

(1.11)

3.28

(1.10)

Social inclusion at school

4.43

(0.61)

4.39

(0.62)

0.15

4.36

(0.69)

4.32

0.77