Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, Texas 78712, USA.
Psychophysiology. 2012 Jan;49(1):145-9. doi: 10.1111/j.1469-8986.2011.01283.x. Epub 2011 Aug 31.
This experiment examined the effects of consuming a high-fat meal on cardiovascular reactivity and the ability of exercise to act as a moderator between dietary fat consumption and cardiovascular reactivity. Forty healthy, college-age students were randomly assigned to one of four experimental groups: (1) low-fat meal, no exercise; (2) low-fat meal, postprandial exercise; (3) high-fat meal, no exercise; and (4) high-fat meal, postprandial exercise. To induce stress, all participants performed a public speaking task, while heart rate and blood pressure reactivity were measured. Multilevel analyses revealed that consuming a high-fat meal led to heightened mean arterial pressure reactivity. Acute high-intensity exercise resulted in attenuated heart rate and mean arterial pressure reactivity. The results of this study offer insight into how diet and exercise may influence cardiovascular reactivity, which is a key determinant of cardiovascular disease.
本实验研究了高脂膳食对心血管反应性的影响，以及运动在膳食脂肪摄入与心血管反应性之间的调节作用。40 名健康的大学生被随机分为四组：（1）低脂肪膳食，不运动；（2）低脂肪膳食，餐后运动；（3）高脂肪膳食，不运动；（4）高脂肪膳食，餐后运动。为了诱发应激，所有参与者都进行了公开演讲任务，同时测量了心率和血压反应性。多层次分析显示，摄入高脂肪膳食会导致平均动脉压反应性升高。急性高强度运动导致心率和平均动脉压反应性减弱。这项研究的结果提供了一些关于饮食和运动如何影响心血管反应性的见解，心血管反应性是心血管疾病的一个关键决定因素。
