Sun P, Yan H, Ranadive S M, Lane A D, Kappus R M, Bunsawat K, Baynard T, Li S, Fernhall B
Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai, China.
Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, United States.
Int J Sports Med. 2015 Mar;36(3):189-96. doi: 10.1055/s-0034-1390493. Epub 2014 Oct 20.
Acute aerobic exercise produces post-exercise hypotension (PEH). Chinese populations have lower prevalence of cardiovascular disease compared to Caucasians. PEH may be associated cardiovascular disease through its influence on hypertension. The purpose of this study was to compare PEH between Caucasian and Chinese subjects following acute aerobic exercise. 62 (30 Caucasian and 32 Chinese, 50% male) subjects underwent measurement of peripheral and central hemodynamics as well as arterial and cardiac evaluations, 30 min and 60 min after 45 min of treadmill exercise. Caucasians exhibited significantly higher baseline BP than the Chinese. While the reduction in brachial artery systolic BP was greater in Caucasian than in the Chinese, there was no difference in changes in carotid systolic BP between the groups. The increase in cardiac output and heart rate was greater in the Chinese than Caucasians, but total peripheral resistance and leg pulse wave velocity decreased by a similar magnitude in the Chinese and Caucasian subjects. We conclude that acute aerobic exercise produces a greater magnitude of PEH in peripheral systolic BP in Caucasian compared to Chinese subjects. The different magnitude in PEH was caused by the greater increase in cardiac output mediated by heart rate, with no change in stroke volume. It is possible that initial BP differences between races influenced the findings.
急性有氧运动可导致运动后低血压（PEH）。与白种人相比，中国人群心血管疾病的患病率较低。PEH可能通过其对高血压的影响与心血管疾病相关。本研究的目的是比较白种人和中国受试者在急性有氧运动后的PEH情况。62名受试者（30名白种人和32名中国人，50%为男性）在进行45分钟跑步机运动后30分钟和60分钟，接受了外周和中心血流动力学测量以及动脉和心脏评估。白种人的基线血压显著高于中国人。虽然白种人肱动脉收缩压的下降幅度大于中国人，但两组间颈动脉收缩压的变化没有差异。中国人的心输出量和心率增加幅度大于白种人，但中国和白种人受试者的总外周阻力和腿部脉搏波速度下降幅度相似。我们得出结论，与中国受试者相比，急性有氧运动使白种人外周收缩压的PEH幅度更大。PEH幅度的差异是由心率介导的心输出量更大增加所致，而每搏输出量没有变化。种族之间最初的血压差异可能影响了研究结果。
