Figure 2 Laser effect on inflammation as measured by prostaglandin E₂ (PGE₂) concentrations in peritendinous tissue. Mean post‐treatment PGE₂ concentrations and their respective 95% confidence intervals relative to the mean pre‐treatment baseline results are shown. Values were recorded at seven consecutive 15 minute intervals (total 165 minutes after treatment), and the significant between‐groups difference at the last time point is indicated by an asterisk.