Figure 9. Total distance run (km) over 4 weeks of voluntary exercise and myofibre necrosis in sedentary and exercised mdx 12-week-old mice; a comparison of mice on a control diet, high fat diet or high protein diet. (A) Total distance run (km) over 4 weeks of voluntary exercise (mdx only). (B) Myofibre necrosis in the quadriceps muscle (mdx only). Bars represent standard error. N= 8 for all groups. A,B,C denotes significant differences, groups with different letters are significantly different from each other (P<0.05).