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Table 2 Means of proportion of activity intensity (%), standard deviations (SD) and number of scans made (n) during recess and lunch breaks

From: A stepped-wedge implementation and evaluation of the healthy active peaceful playgrounds for youth (HAPPY) intervention

Category

Recess & lunch behaviour (%)

Recess & lunch behaviour (%) Boys Obs.

Recess & lunch behaviour (%) Girls Obs.

 

Baseline M (SD) (n = 115)

Follow-up M (SD) n = 599)

Mean Diff.

Cohen’s d (p-value)

Baseline M (SD) (n = 59)

Follow-up M (SD) (n = 299)

Mean Diff.

Cohen’s d (p-value)

Baseline M (SD) (n = 56)

Follow-up M (SD) (n = 300)

Mean Diff.

Cohen’s d (p-value)

Intensity of Physical Activity (via SOPARC)

 Sedentary activities

57.5 (27.6)

49.8 (30.5)

−7.7

0.26 (0.01)

52.5 (28.6)

42.9 (30.1)

−9.6

0.3 (0.01)

62.8 (25.8)

56.8 (29.2)

−6.0

0.2 (0.183)

 Walking

26.6 (20.1)

25.1 (18.3)

1.5

0.1 (0.4)

26.8 (18.5)

23.2 (15.8)

−3.55

0.2 (0.1)

26.4 (21.8)

26.9 (20.3)

+ 0.5

0.02 (0.8)

 Vigorous activities (VPA)

15.0 (21.8)

25.1 (26.6)

+ 10.1

0.4 (< 0.001)

19.0 (25.1)

33.9 (27.6)

+ 14.85

0.6 (< 0.001)

10.8 (16.9)

16.3 (22.4)

+ 5.5

30.3 (0.03)

 

Recess & lunch behaviour (VPA%)

      

 Physical Activity observations (via SOPARC)

M (SD) Baseline

M (SD) Follow-up

Mean Diff. Cohen’s d (p-value)

      

 Hard Surface (n = 54 Baseline; n = 238 Follow-up) (i.e., Cement or Asphalt

8.7 (18.9)

13.7 (18.8)

+ 5.05

0.3 (0.004)

      

 Soft Surface (n = 60 Baseline; n = 361 Follow-up) (i.e., grass)

20.9 (22.8)

32.5 (28.4)

+ 11.6

0.4 (0.004)

      
  1. (N.B. As the data was non parametric, Mann-Whitney tests were applied)