Figure 2. Comparison of blood lactate levels from rest to immediately after all-out exercise (maximum blood lactate levels) in OLETF (n = 8) and LETO (n = 6) rats. Each rat ran with incremental running velocity by every 3 minutes until all-out condition. Immediately after all-out condition, blood samples were collected from fixed catheter of nape and treadmill exercise stopped. Values are expressed as mean ± SEM. * significant difference between groups (p < 0.05).