Clinical Study

Peak Oxygen Uptake Responses to Training in Obese Adolescents: A Multilevel Allometric Framework to Partition the Influence of Body Size and Maturity Status

Table 4

Multilevel regression analysis of log-transformed peak VO2 of obese boys adjusted for fat-free mass, age, and interaction term between age and maturity status.

Model 1Model 2Model 3
Exponent ± standard errorExponent ± standard errorExponent ± standard error

Fixed explanatory variable
Intercept
Changes with training
Fat-free mass
Chronological ageNot entered Not entered
Interaction age × maturity statusNot enteredNot entered

Variance-covariance matrix of random variables
Level 1 (within individuals)
Residual
Level 2 (between individuals)
Intercept
Changes with training
Covariance

−2 restricted log likelihood −53.406−53.337−46.343
Akaike's information criterion −49.406−45. 337−38.343

; .