Figure 1. The path lengths in Morris water maze testing. The treadmill running caused a significant enhancement learning and memory in rats of Group A compared with the controls (C). Panel mean (± SEM) path length to reach the hidden platform in total 8 days have been calculated in the four rat groups, A and B groups showed significant decreases compared to the control (C) group (* p < 0.05, **p < 0.001). Panel shows that the path length decreased in each group especially during the first days of the Morris water maze testing. When compared with the controls (C) difference in the A group was clear already immediately i.e. it was significant in days 1, 2, 7, 8 (* p < 0.05) i.e. the chronic and continuing treadmill exercise promoted significantly this kind of learning.