Table 3 Crude association of significant variables from stage I selection step and AEE (kcal day−1) using single linear regression sorted by strength of association (n = 49).

From: Prediction of activity-related energy expenditure under free-living conditions using accelerometer-derived physical activity

Variables (stage I)

beta

SE

95% CI

p-value

STbeta

R2 (%)

VM counts (cpm)

1.60

0.33

(0.94, 2.26)

 < 0.001

0.58

33.8

FFMADP (kg)

18.48

3.87

(10.69, 26.27)

 < 0.001

0.57

32.6

FFMBIA (kg)

15.29

3.96

(7.33, 23.25)

 < 0.001

0.49

24.1

Height (cm)

18.07

4.71

(8.60, 27.53)

 < 0.001

0.49

23.9

Energy intake (kcal d−1)

0.29

0.08

(0.14, 0.45)

 < 0.001

0.48

23.2

Carbohydrate intake (g d−1)

2.08

0.62

(0.83, 3.33)

0.002

0.44

19.3

SittingQUAP (h day−1)

− 46.30

14.27

(− 75.00, − 17.60)

0.002

− 0.43

18.3

HGSmax (kg)

11.85

3.95

(3.90, 19.81)

0.004

0.40

16.0

Resting heart rate (bpm)

− 13.96

5.11

(− 24.24, − 3.69)

0.009

− 0.37

13.7

LocomotionQUAP (h week−1)

21.40

8.78

(3.74, 39.06)

0.019

0.34

11.2

Sex (male = 0, female = 1)

− 220.05

92.14

(− 405.41, − 34.69)

0.021

− 0.33

10.8

MPA + walkingIPAQ (min day−1)

2.25

1.11

(0.01, 4.49)

0.049

0.28

8.0

  1. ADP air-displacement plethysmography, beta unstandardized regression coefficient, BIA bioelectrical impedance analysis, bpm beats per minute, cpm counts per minute, FFM fat-free mass, FM fat mass, HGS handgrip strength, IPAQ International Physical Activity Questionnaire, MPA moderate physical activity, QUAP Questionnaire on Physical Activity on previous 12 months, R2 coefficient of determination, SE standard error, STbeta standardized beta coefficient, VM vector magnitude.
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