Body-composition phenotype axes provide additional explanatory information for cardiorespiratory fitness and liver-related metabolic risk within BMI strata

BackgroundBody mass index (BMI) does not fully characterize heterogeneity in adiposity patterning, lean reserve, and impedance-derived body-composition features. We derived residualized body-composition phenotype axes from routine measurements and examined whether these projected axes provided additional explanatory information for estimated VO₂max and alanine aminotransferase (ALT) within BMI ...