Figure 2. Relationship between leg muscle mass and peak work (A) and leg muscle mass and peak VO2 (B).
Peak work was associated with leg muscle mass in HFrEF (r2=0.50, p=0.04), but not in CTLs (r2=0.18, p=0.29). Peak VO2 was associated with leg muscle mass in HFrEF patients (r2=0.66, p=0.007), but not in CTLs (r2<1.0, p=0.50).