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Table 2 Baseline and During Preschool Physical Activity Measures

From: Design and baseline characteristics of the Short bouTs of Exercise for Preschoolers (STEP) study

Variable

SBS-PA

UPA

p

All

 

(n = 141)

(n = 150)

 

(n = 291)

Age (yrs)

4.0 ± 0.8

4.1 ± 0.9

0.36

4.1 ± 0.8

Weight (kg)

17.3 ± 3.0

18.1 ± 3.5

0.04

17.7 ± 3.3

Height (cm)

102.4 ± 6.9

103.0 ± 6.3

0.39

102.7 ± 6.6

Body mass index (kg/m2)

16.4 ± 1.4

17.0 ± 2.2

0.06

16.7 ± 1.9

Body mass index percentile

64.8 ± 28.4

71.9 ± 24.5

0.03

68.5 ± 26.7

Screen media use (weekly minutes)

    

 Television viewing

87.9 ± 155.9

96.6 ± 165.7

0.81

92.5 ± 160.9

 VCR/DVD

40.7 ± 113.1

42.2 ± 111.3

0.98

41.5 ± 111.9

 Video game

13.3 ± 43.7

26.7 ± 77.1

0.12

20.4 ± 63.9

Percent time spent in Sedentary PA

75.4 ± 9.3

74.9 ± 9.4

0.18

74.2 ± 9.3

Percent time spent in Light PA

19.0 ± 4.8

18.1 ± 4.8

0.19

18.6 ± 4.8

Percent time spent in MVPA

6.7 ± 3.4

6.2 ±3.4

0.26

6.4 ± 3.4

Percent of direct observation at levels of PA

    

 Sedentary

26.9 ± 27.2

22.0 ± 25.6

0.26

24.5 ± 26.4

 Light

31.2 ± 21.6

48.9 ± 23.4

0.0001

40.0 ± 24.1

 MVPA

39.0 ± 31.0

27.5 ± 27.4

0.06

33.6 ± 29.8

  1. Values are represented as means ± sd. SBS-PA = Short bouts structured-physical activity; UPA = Unstructured physical activity; PA = physical activity, MVPA = moderate to vigorous PA. Percent times spent in PA intensity are determined for the total preschool day. Percent of direct observation at levels of PA are determined for gross-motor playtime.