Fig. 2. Effects of lipids and exercise on cytosolic superoxide dismutase activity in rats. One unit of SOD was defined as the amount of SOD required to inhibit the rate of cytochrome c by 50%. Values (mean±SEM, n=4) with different superscripts are significantly different at p<0.05 as revealed by Fisher’s PLSD test; CO=corn oil; FO=fish oil.