This 2016 trial found that 12 weeks of high-intensity interval training (HIIT) significantly improved cardiometabolic function and liver fat content in diabetic subjects. HIIT subjects saw significant increases in a variety of markers of cardiovascular health, including healthful regeneration of cardiac muscle tissue and improved cardiac contractile capabilities, as well as reversal of certain forms of cardiovascular degeneration associated with Type 2 diabetes. The same subjects also showed a 39% decrease in mean liver fat content, with four of the 11 subjects in the HIIT group seeing a reduction from clinically significant liver fat levels to “normal” liver fat.