Muscle fiber type proportion and cross sectional area (CSA) at baseline and after 12 weeks of usual care or high intensity aerobic exercise in combination with resistance training.

a pb p ≤ 0.05, compared with pre-intervention value, within group.c pd p ≤ 0.05, pre to post change compared with change from pre to post in SED.Data are reported as mean ± SE. Differences between groups (SED, HCTR and HITR) were analysed by a one-way ANOVA, whereas within group differences (post minus pre) were analysed with a paired student’s t-test. Relative changes due to the intervention were calculated as the mean of the individual changes and expressed as a percentage. Abbreviations used: SED, sedentary (usual care); HCTR, high intensity continuous exercise + resistance training; HITR, high intensity interval training + resistance training.