Table 5: A worked example for predicting fat mass (FM), bone mineral content (BMC), and lean soft tissue (LST) for a boy.

VariablesMeasuresFMProductBMCProductLSTProduct

Height (cm)148.3 0.0857−12.71 0.00320.48 0.082012.16
Weight (kg)40.0 0.313912.56 0.03921.57 0.641925.68
Skinfolds (mm)
 Sk suprailiac18.7 0.19703.68 0.0095−0.18 0.1964−3.67
 Sk horiz. abdom20.0 0.23504.70 0.0105−0.21 0.2321−4.64
Maturation (years)
 PHV−1.6 0.65711.05 0.0525−0.08 0.7047−1.13

Total (kg)Sum (FM) = 9.28Sum (BMC) = 1.57Sum (LST) = 28.40

FM: fat mass, BMC: bone mineral content; LST: lean soft tissue; Sk: skinfold; PHV: age for peak height velocity. Against original values measured by DXA (FM = 9.30; BMC = 1.50; LST = 28.50).