Figure 3: Average change in ghrelin (pmol/L, upper left panel), ghrelinacyl (pmol/L, upper right panel), PYY (pmol/L, lower left panel), and GLP-1 (pmol/L, lower right panel) for runners and walkers during exercise (solid grey) and rest (dashed black). “Pre” represents the time point just before exercise or rest. Vertical bars display the standard error of the mean concentration of gut peptide at that time point.