Figure 3.

Representative photomicrographs of femoral head articular cartilage of A) sedentary control mice, B) exercised control mice, C) sedentary mdx mice, and D) exercised mdx mice. Exercised control mice had the largest femur head diameter, cartilage tissue area, and area of calcified cartilage in comparison to all other groups when corrected for differences in body mass. Toluidine blue, 40×.