Figure 1. The effect of moderate exercise on cytokine production. Three different samples of blood serum, WB and PBMCs were collected at three different phases. Serum and culture supernatants were assayed for IFN-γ (A), IL-12 (B), IL-4 (C) and IL-6 (D). Horizontal lines show mean±SEM. WB, whole blood; PBMCs, peripheral blood mononuclear cells; ^*p=0.01; ^**p<0.001.