Figure 2. Skeletal muscle capillary‐to‐fibre ratio, number of capillaries around a fibre, and the percentage increase in VEGF mRNA expression following knee‐extensor exercise (KE) at 50% of maximal KE work rate in untrained healthy controls and patients with chronic heart failure with reduced ejection fraction (HFrEF) before (pre) and after (post) KE training.

Data are presented as mean ± SE. ^* P < 0.05 post vs. pre; ^# P < 0.05 HFrEF vs. controls. R, rested leg; E, excercised leg.