Changes in hepatic R2*, a marker of liver iron content, in obese men and women before (untrained) and after (trained) 12 weeks of either moderate-intensity continuous training (MICT, n = 11, left panels) or high-intensity interval training (HIIT, n = 11, right panels). The group means are indicated by bars, with data for individual subjects connected by lines. Women are indicated by lines only, whereas men are indicated by lines and circular markers. †P = 0.06 for the main effect of training status (untrained vs. trained)