Figure 2. Change in CAIT, FAAM-G ADL and FAAM-G Sports after 6 months intervention in subjects with CAI following collagen peptide supplementation (TG, n 25) or placebo (PG, n 25). Values are means, with their standard errors represented by vertical bars. Significance was tested by an ANOVA with a time × treatment interaction. ** Mean value was significantly different from that of the placebo group (P < 0.01). *** Mean value was highly significantly different from that of the placebo group (P < 0.001).