Journal of Obesity / 2014 / Article / Tab 5

Research Article

School-Based Obesity Prevention Intervention in Chilean Children: Effective in Controlling, but not Reducing Obesity

Table 5

Change in characteristics of PE classes conducted by teachers in control and intervention schools*.

Control childrenIntervention children

Period of observation of PE classes of children 1st–3rd grades May–July
2012
Aug.–Oct.
2012
May–July
2012
Aug.–Oct.
2012
Number of PE classes observed at least 4 times each semester 12121818
Actual duration of
PE classes (median minutes)
61.464.858.867.9
Four curricular aspects related to the way the teacher conducts the class (median score of a total of 16 points) 9.91010.114.31
Number of children wearing pedometers in 4 PE classes each semester 155155482482
Moderate/vigorous activity (MVA)a in PE classes:
mean minutes (SD)
13.8 (5.6)10.2 (5.6)215.6 (5.3)16.1 (5.0)
% Class time in MVA
(calculated from real duration)
24.5 16.2224.8 23.7

All PE classes had a programmed duration of 90 minutes; amoderate and vigorous activity.
1P = 0.033; 2P = 0.000.