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Table 5 Predicted differences in zBMI, %WHtR, and CRF following reallocation of 15 min between movement behaviours

From: Fitness, fatness and the reallocation of time between children’s daily movement behaviours: an analysis of compositional data

 

zBMI

%WHtR

CRF (VO2 peak, ml·kg·min−1) a

Sleep

ST

LPA

MVPA

Sleep

ST

LPA

MVPA

Sleep

ST

LPA

MVPA

All children n = 169

 Sleep

 

0.05

−0.01

0.88

 

0.1

−0.4

5.1

 

0.0

−0.0

-2.4

 ST

-0.05

 

−0.06

0.83

−0.1

 

−0.5

5.0

0.0

 

−0.0

-2.4

 LPA

0.01

0.06

 

0.89

0.3

0.4

 

5.5

0.0

0.0

 

-2.4

 MVPA

-0.48

−0.43

−0.49

 

−2.8

−2.7

−3.1

 

1.3

1.3

1.3

 

Underweight children n = 15 b

 Sleep

 

0.05

−0.01

0.59

 

0.1

−0.3

3.4

 

0.0

−0.0

-1.6

 ST

-0.05

 

−0.06

0.54

−0.1

 

−0.4

3.3

0.0

 

−0.0

-1.6

 LPA

0.01

0.06

 

0.60

0.3

0.4

 

3.7

0.0

0.0

 

-1.6

 MVPA

-0.39

−0.33

−0.40

 

−2.2

−2.1

−2.5

 

1.1

1.1

1.0

 

Normal weight children n = 115

 Sleep

 

0.05

−0.01

0.77

 

0.1

−0.4

4.5

 

0.0

−0.0

-2.1

 ST

-0.05

 

−0.06

0.72

−0.1

 

−0.5

4.4

0.0

 

−0.0

-2.1

 LPA

0.01

0.06

 

0.78

0.3

0.4

 

4.8

0.0

0.0

 

-2.1

 MVPA

-0.45

−0.40

−0.46

 

−2.6

−2.5

−2.9

 

1.2

1.2

1.2

 

Overweight/obese children n = 39

 Sleep

 

0.05

−0.01

1.82

 

0.1

−0.4

10.8

 

0.0

−0.0

-5.1

 ST

-0.05

 

−0.06

1.77

−0.1

 

−0.5

10.7

0.0

 

−0.0

-5.1

 LPA

0.01

0.06

 

1.83

0.4

0.5

 

11.1

0.0

0.0

 

-5.0

 MVPA

-0.64

−0.59

−0.65

 

−3.7

−3.6

−4.1

 

1.8

1.8

1.7

 
  1. Estimation of change in zBMI, %WHtR or VO2 peak when the behaviour in the rows substitutes the behaviour in the columns
  2. zBMI Body Mass Index z-score; CRF cardiorespiratory fitness; VO 2 peak peak oxygen uptake; ST Sedentary Time; LPA Light Physical Activity; MVPA Moderate-to-Vigorous Physical Activity
  3. Analysis adjusted for IMD decile, age, and sex. a Analysis adjusted for IMD decile, age, sex, and zBMI. b Underweight results reported for presentation purposes only due to low sample size