Cardiorespiratory Fitness Normalized to Fat-Free Mass and Mortality Risk

Purpose Cardiorespiratory fitness (CRF) is known to be directly related to fat-free mass (FFM), therefore, it has been suggested that normalizing CRF to FFM (V˙O 2peakFFM ) may be the most accurate expression of CRF as related to exercise performance and cardiorespiratory function. However, the influence of V˙O 2peakFFM (mL·kg FFM −1 ·min −1 ) on predicting mortality has been largely unexplored. This study aimed to primarily assess the...