Endothelium-dependent vasodilation to acetylcholine in isolated, pressurized GFAs, second-order arterioles from the fast-twitch red portion of the gastrocnemius (G2A-Red), and second-order arterioles from the fast-twitch white portion of the gastrocnemius (G2A-White) from sedentary (SED), endurance exercise trained (EndEx), and interval sprint trained (IST) obese OLETF rats. Adapted from Martin et al. (40).