A: consort flow diagram showing the total number of subjects recruited and analyzed. B: study design. [18F]FDG, 2-[18F]fluoro-2-deoxy-d-glucose; [18F]FTHA, 14(R,S)-[18F]fluoro-6-thia-heptadecanoic acid; MICT, moderate-intensity continuous training; MRI, magnetic resonance imaging; MRS, magnetic resonance spectroscopy; PET, positron emission tomography; SIT, sprint interval training; T2D, type 2 diabetes; V̇o2peak, aerobic capacity (peak oxygen consumption).