Reduction of C2C/CP2 deflection after intervention (mean+95% CI) Reduction of C2C/CP2 deflection after intervention (mean+95% CI). C2C, type II collagen collagenase cleavage neoepitope; CP2, C propeptide of type II procollagen. *p<0.05. Reduction of C2C/CP2 deflection after intervention (mean+95% CI). C2C, type II collagen collagenase cleavage neoepitope; CP2, C propeptide of type II procollagen. *p<0.05. Claudia A Reule et al. BMJ Open Sport Exerc Med 2017;2:e000156 ©2017 by BMJ Publishing Group Ltd