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首页> 外文期刊>Research in sports medicine >Acute effect of caffeine intake on hemodynamics after resistance exercise in young non-hypertensive subjects
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Acute effect of caffeine intake on hemodynamics after resistance exercise in young non-hypertensive subjects

机译：年轻的非高血压受试者摄入咖啡因对抵抗运动后血流动力学的急性影响

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This study aimed to examine the effect of caffeine on hemodynamics after a resistance exercise session. Fifteen subjects completed two randomly ordered experimental resistance exercise sessions 45 min after the ingestion of either caffeine (4 mg.kg-1) or placebo. Systolic (SBP), diastolic (DBP) and mean (MAP) blood pressures were measured before consuming caffeine; SBP, DBP, MAP, heart rate, stroke volume, cardiac output and peripheral vascular resistance (PVR) were measured immediately before and after each of the sessions; SBP, DBP and MAP were measured for 9 hours after sessions. Caffeine increased (p 0.05) pre-exercise DBP and MAP. In caffeine and placebo conditions significant decreases (p 0.05) were noted in SBP, MAP, and PVR between the pre-and post-exercise time points. Notwithstanding, the mean values for SBP, DBP and MAP during the 9 h of post-exercise monitoring were increased (p 0.05) for the caffeine. In conclusion, the cardiovascular effects of caffeine are different over the post-exercise period after resistance exercise in normotensive young adults.
机译：这项研究旨在检查咖啡因对抵抗运动后血液动力学的影响。摄入咖啡因（4 mg.kg-1）或安慰剂后45分钟，有15名受试者完成了两个随机命令的实验性抵抗运动训练。摄入咖啡因前先测量收缩压（SBP），舒张压（DBP）和平均（MAP）血压;在每次训练之前和之后立即测量SBP，DBP，MAP，心率，中风量，心输出量和外周血管阻力（PVR）;疗程后9小时测量SBP，DBP和MAP。运动前DBP和MAP的咖啡因升高（p <0.05）。在咖啡因和安慰剂条件下，运动前和运动后时间点之间的SBP，MAP和PVR明显降低（p <0.05）。尽管如此，在运动后监测的9小时内，咖啡因的SBP，DBP和MAP平均值增加了（p <0.05）。总之，在正常血压的年轻人中，进行抗性锻炼后，运动后咖啡因的心血管作用是不同的。

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