血管紧张素Ⅱ (AⅡ )能促进大鼠心功能改变 ,使心肌收缩力和舒张能力提高 ,增加心输出量 ;AⅡ能通过增加血糖的来源和去路 ,激活乳酸脱氢酶使大鼠游泳时间延长 ,同时并不增加运动应激引起的胃粘膜损伤。提示AⅡ的增加能促进大鼠急性运动应激能力提高 Angiotensin Ⅱ (AⅡ) can improve cardiac function in rats, and improve cardiac contractility and diastolic capacity and increase cardiac output. AⅡ can prolong the swimming time of rats by activating the source and route of blood glucose, activating lactate dehydrogenase , While not increasing the gastric mucosal injury caused by exercise stress. Tip A Ⅱ increase can promote the ability of acute motor stress in rats