Figure 1

Linear regression relationship (solid lines) and 95% confidence interval (dashed lines) between measured and calculated plasma [H⁺] in 9 horses before and after a Competition Exercise Test. The exercise recovery period begins at 0 min, after horses were either given a hypertonic sodium acetate/acetic acid solution (NAA trial; solid square), or stood in stocks (Control trial; hollow circle). Provide the equation with the p value SEE = standard error of the estimate.