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Table 4 Associations between physical activity of different intensities and body fatness indicators Z-scores in boys (N = 156)

From: Associations between accelerometer-measured physical activity and body fatness in school-aged children

  Fat mass
(kg)
Fat mass
(%)
Fat mass index
(kg · m−2)
Visceral adipose tissuea
(cm2)
  βb (95% CI) P-value βb (95% CI) P-value βb (95% CI) P-value βb (95% CI) P-value
LPAa
 Model 1 −0.27 (–0.77, 0.23) 0.281 −0.28 (–0.77, 0.22) 0.272 −0.22 (–0.72, 0.27) 0.375 −0.29 (–0.78, 0.21) 0.260
 Model 2 −0.07 (–0.55, 0.40) 0.757 −0.16 (–0.68, 0.36) 0.540 −0.09 (–0.61, 0.44) 0.747 −0.08 (–0.60, 0.43) 0.754
 Model 3 −0.07 (–0.55, 0.41) 0.781 −0.16 (–0.69, 0.37) 0.544 −0.08 (–0.60, 0.45) 0.779 −0.12 (–0.64, 0.40) 0.653
MVPAa
 Model 1 −0.28 (–0.61, 0.06) 0.104 −0.31 (–0.64, 0.03) 0.071 −0.28 (–0.61, 0.05) 0.098 −0.30 (–0.63, 0.03) 0.078
 Model 2 −0.25 (–0.55, 0.06) 0.111 −0.27 (–0.61, 0.06) 0.111 −0.24 (–0.58, 0.09) 0.158 −0.24 (–0.57, 0.09) 0.155
 Model 3 −0.26 (–0.56, 0.05) 0.103 −0.28 (–0.61, 0.06) 0.109 −0.25 (–0.59, 0.09) 0.145 −0.22 (–0.55, 0.11) 0.193
VPAa
 Model 1 −0.16 (–0.30, –0.02) 0.029 −0.16 (–0.30, –0.01) 0.034 −0.16 (–0.30, –0.02) 0.027 −0.12 (–0.27, 0.03) 0.119
 Model 2 −0.12 (–0.25, 0.01) 0.071 −0.15 (–0.29, –0.01) 0.048 −0.15 (–0.29, –0.01) 0.039 −0.10 (–0.25, 0.05) 0.175
 Model 3 −0.12 (–0.25, 0.01) 0.073 −0.15 (–0.29, –0.01) 0.048 −0.15 (–0.29, –0.01) 0.040 −0.10 (–0.25, 0.04) 0.168
  1. Model 1 – unadjusted (raw) model
  2. Model 2 – model 2 was adjusted for age and body height
  3. Model 3 – model 3 was adjusted for model 2 and sedentary time
  4. CI confidence interval, LPA light physical activity, MVPA moderate-to-vigorous physical activity, VPA vigorous physical activity
  5. aValues were transformed to natural logarithms before analysis
  6. bβ gives the regression coefficient of the standardized values (Z-score) for each variable