Exercise benefits cardiovascular health in hyperlipidemia rats correlating with changes of the cardiac vagus nerve - Wang, Y H; Hu, H; Wang, S P; Tian, Z J; Zhang, Q J; Li, Q X; Li, Y Y; Yu, X J; Sun, L; Li, D L; Jia, B; Liu, B H; Zang, W J (Eur J Appl Physiol, 2010)