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Table 2 Linear regression models of physical activity (PA) with indices of fat mass and height (Model I)

From: Association of objectively measured physical activity with body components in European adolescents

Height BMI Skinfold thicknessa % Fat massa,b Waist circumferencea
Males β R 2 P β R 2 P β R 2 P   β R 2 P β R 2 P
 Light PAa -0.200 0.423 <0.001 0.047 0.059 0.178 0.082 0.071 <0.05 0.053 0.079 0.128 0.007 0.097 0.832
 Moderate PAa -0.106 0.401 <0.001 -0.018 0.058 0.581 -0.040 0.067 0.229 -0.046 0.079 0.159 -0.049 0.099 0.130
 Vigorous PAa 0.056 0.394 <0.05 -0.204 0.098 <0.001 -0.258 0.130 <0.001 -0.259 0.142 <0.001 -0.175 0.126 <0.001
 MVPAa -0.035 0.391 0.348 -0.112 0.069 0.001 -0.161 0.091 <0.001 -0.165 0.103 <0.001 -0.114 0.109 <0.001
 Average PAa -0.012 0.391 0.640 -0.095 0.066 <0.01 -0.149 0.087 <0.001 -0.155 0.100 <0.001 -0.097 0.106 <0.01
Females                
 Light PAa -0.119 0.148 <0.001 0.095 0.141 0.001 0.009 0.197 0.746 0.021 0.180 0.469 0.062 0.147 0.033
 Moderate PAa -0.049 0.137 0.094 0.008 0.133 0.794 -0.039 0.199 0.171 -0.036 0.180 0.205 -0.031 0.145 0.290
 Vigorous PAa 0.052 0.147 0.074 -0.142 0.151 <0.001 -0.178 0.227 <0.001 -0.176 0.208 <0.001 -0.146 0.164 <0.001
 MVPAa -0.011 0.135 0.703 -0.064 0.136 <0.05 -0.115 0.209 <0.001 -0.110 0.19 <0.001 -0.092 0.151 <0.01
 Average PAa 0.003 0.135 0.929 -0.043 0.134 0.153 -0.100 0.206 <0.001 0.095 0.187 0.001 -0.070 0.148 <0.05
  1. β, standardized regression coefficients; R 2, coefficients of determination. aLog-transformed data.
  2. Analyses were adjusted for model I (pubertal status, family affluence scale and country). BMI indicates body mass index, MVPA indicates moderate and vigorous PA.
  3. b% fat mass derived from Slaughter equation [26].