Figure 2. Skin-SIgA concentration on the chest (a) and forearm (b), and HBD-2 concentration on the chest (c) and forearm (d). Values are expressed as means ± SD. pre = Before exercise (18:30), post = After exercise (19:30), 60 min = After 60 min of exercise (20:30), 120 min = After 120 min of exercise (21:30).