Table 1

Time and interaction effects for PA outcomes in the total sample (adjusted for age and sex)
n = 472 (I = 301, C = 171) PRE (%) POST (%) Time Time * condition
ß ß
LPA
Day I 47.7 46.8 −0.80* −0.06
C 46.7 45.9
Weekday I 48.1 47.1 −1.18** 0.11
C 47.4 46.2
Weekend day I 46.5 46.3 −0.11 −0.09
C 45.2 45.1
School hours$ I 49.0 39.6 −1.26*** 1.02
C 47.8 37.8
After school hours I 38.8 34.1 −5.86*** 1.18
C 38.3 32.4
MPA
Day$ I 5.6 6.3 1.05* 1.06
C 5.6 5.9
Weekday$ I 5.5 6.1 1.05 1.05
C 5.5 5.8
Weekend day$ I 5.6 6.1 1.05 1.02
C 5.4 5.7
School hours I 5.9 6.0 −0.33 0.45
C 6.0 5.6
After school hours$ I 4.3 4.2 1.15** 1.11
C 4.3 3.7
VPA
Day$ I 1.7 2.1 1.16** 1.11
C 1.8 2.0
Weekday$ I 1.5 1.9 1.16 1.14*
C 1.5 1.8
Weekend day$ I 1.8 2.3 1.17 1.08
C 1.9 2.2
School hours$ I 1.2 1.7 1.43*** 1.02
C 1.2 1.8
After school hours$ I 1.2 1.5 −1.02 1.31**
C 1.3 1.3
Total PA
Day I 55.5 56.0 −0.05 0.48
C 54.6 54.6
Weekday I 55.7 55.9 −0.48 0.65
C 55.2 54.7
Weekend day I 55.1 55.9 0.93 −0.09
C 53.6 54.6
School hours$ I 56.4 48.5 −1.19*** 1.03
C 55.2 46.2
After school hours I 45.6 41.5 −6.06*** 1.93
C 45.2 39.2
MVPA
Day$ I 7.4 8.6 1.08** 1.07*
C 7.5 8.1
Weekday$ I 7.0 8.1 1.08 1.07
C 7.2 7.8
Weekend day$ I 7.7 8.7 1.09 1.04
C 7.6 8.2
School hours$ I 6.8 7.6 1.06 1.05
C 6.8 7.3
After school hours$ I 5.7 6.1 −1.10 1.18**
C 5.9 5.4

*p < 0.10, **p < 0.05, ***p < 0.001.

$Variable was log-transformed.

LPA = Light Physical Activity; MPA = Moderate Physical Activity; VPA = Vigorous Physical Activity; Total PA = Total Physical Activity; MVPA = Moderate- to Vigorous Physical Activity; I = Intervention group; C = Control group.

De Craemer et al.

De Craemer et al. International Journal of Behavioral Nutrition and Physical Activity 2014 11:38   doi:10.1186/1479-5868-11-38

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