Akazawa Nobuhiko, Ra Song-Gyu, Sugawara Jun, Maeda Seiji
Faculty of Health and Sport Sciences, University of Tsukuba Tsukuba, Japan.
Faculty of Health and Sport Sciences, University of Tsukuba Tsukuba, Japan ; Japanese Society for the Promotion of Science Tokyo, Japan.
Front Physiol. 2015 Oct 7;6:268. doi: 10.3389/fphys.2015.00268. eCollection 2015.
Central arterial blood pressure (BP) is more predictive of future cardiovascular events than is brachial BP because it reflects the BP load imposed on the left ventricle with greater accuracy. However, little is known about the effects of exercise training on central hemodynamic response to acute exercise. The purpose of the present study was to determine the influence of an aerobic exercise regimen on the response of aortic BP after a single aerobic exercise in postmenopausal women. Nine healthy postmenopausal women (age: 61 ± 2 years) participated in a 12-week aerobic exercise training regimen. Before and after the training, each subjects performed a single bout of cycling at ventilatory thresholds for 30 min. We evaluated the post-exercise aortic BP response, which was estimated via the general transfer function from applanation tonometry. After the initial pre-training aerobic exercise session, aortic BP did not change significantly: however, aortic pulse pressure and augmentation pressure were significantly attenuated after the single aerobic exercise session following the 12-week training regimen. The present study demonstrated that a regular aerobic exercise training regimen induced the post-exercise reduction of aortic pulse pressure and augmentation pressure. Regular aerobic exercise training may enhance post-exercise reduction in aortic BP.
中心动脉血压（BP）比肱动脉血压更能预测未来心血管事件，因为它能更准确地反映施加于左心室的血压负荷。然而，关于运动训练对急性运动中心血流动力学反应的影响，人们了解甚少。本研究的目的是确定有氧运动方案对绝经后女性单次有氧运动后主动脉血压反应的影响。九名健康绝经后女性（年龄：61±2岁）参加了为期12周的有氧运动训练方案。训练前后，每位受试者在通气阈值下进行了一次30分钟的骑行运动。我们评估了运动后主动脉血压反应，该反应通过来自压平式眼压测量法的通用传递函数进行估计。在初始的训练前有氧运动环节后，主动脉血压没有显著变化；然而，在为期12周的训练方案后的单次有氧运动环节后，主动脉脉压和增强压显著降低。本研究表明，规律的有氧运动训练方案可导致运动后主动脉脉压和增强压降低。规律的有氧运动训练可能会增强运动后主动脉血压的降低。
