Fig. 2.

a Cartilage thicknesses across six sites on the knee joint measured through histology. No significant differences were found between groups. b COX-2 mRNA levels for the synovium expressed as fold change from control group (dashed gray line). c EGF exhibiting significant differences between groups for synovial fluid; 27 proteins were analyzed with a Luminex-based protein assay. MD moderate duration exercise, HD high duration exercise, EHD extra high duration exercise, MFC-ant anterior medial femoral condyle, MFC-post posterior medial femoral condyle, LFC-ant anterior lateral femoral condyle, LFC-post posterior lateral femoral condyle. * indicates a significant difference when compared to control group values