Acute mental stress-caused arterial stiffening can be counteracted by brief aerobic exercise
Acute mental stress-caused arterial stiffening can be counteracted by brief aerobic exercise
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DOI：
10.1007/s00421-021-04618-3
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发表时间：
2021-02-18
影响因子：
3
通讯作者：
Endoh, Hiroshi
中科院分区：
文献类型：
--
作者：
Kume, Daisuke;Nishiwaki, Masato;Endoh, Hiroshi
目的 急性精神压力 (MS) 会导致脉搏波速度 (PWV)（动脉僵硬度指数）升高。相比之下，有氧运动即使在短期内也能急剧降低动脉僵硬度。本研究旨在探讨短暂的有氧运动是否可以抵消多发性硬化症引起的急性动脉硬化。方法 13 名年轻健康男性（平均年龄，20 +/- 1 岁）参加了两次随机实验访问，他们接受了急性 MS，随后进行了坐姿休息 (RE) 或骑自行车运动 (EX) 试验。在完成 5 分钟的 MS 任务后，RE 试验的参与者在椅子上休息 10 分钟（任务停止后 10 到 20 分钟），而 EX 试验的参与者在相同时间内以 35% 的心率储备进行循环。在基线和任务后 5、30 和 45 分钟同时测量心臂 PWV (hbPWV)、臂踝 PWV (baPWV)、心踝 PWV (haPWV) 和心踝血管指数 (CAVI)。结果 两项试验均导致任务后 5 分钟 hbPWV、haPWV 和 CAVI 显着升高（P < 0.05）；随后，这种情况在 RE 试验中持续到任务完成后 45 分钟，而 EX 试验中的升高被消除。在 RE 试验中，baPWV 在任务后 30 和 45 分钟显着增加（P < 0.05），而在 EX 试验中没有观察到这种增加。结论 本研究的结果表明，短暂的有氧运动可以抵消急性多发性硬化症引起的动脉硬化。
Purpose Acute mental stress (MS) causes an elevation in pulse wave velocity (PWV), an index of arterial stiffness. In contrast, aerobic exercise acutely decreases arterial stiffness, even in the short term. The present study aimed to examine whether acute MS-caused arterial stiffening can be counteracted by brief aerobic exercise. Methods Thirteen young healthy men (mean age, 20 +/- 1 years) participated in two randomized experimental visits where they were subjected to acute MS followed by seated rest (RE) or cycling exercise (EX) trials. Following a 5-min MS task, the participants in the RE trial rested on a chair for 10 min (from 10 to 20 min after the cessation of the task), whereas those in the EX trial cycled at 35% of heart rate reserve for the same duration. Heart-brachial PWV (hbPWV), brachial-ankle PWV (baPWV), heart-ankle PWV (haPWV), and the cardio-ankle vascular index (CAVI) were simultaneously measured at baseline and 5, 30, and 45 min after the task. Results Both trials caused significant elevations (P < 0.05) in hbPWV, haPWV, and CAVI at 5 min after the task; subsequently, this persisted until 45 min after the task in the RE trial, whereas the elevations in the EX trial were eliminated. In the RE trial, baPWV significantly increased (P < 0.05) at 30 and 45 min after the task, whereas such an increase was not observed in the EX trial. Conclusion The findings of the present study reveal that brief aerobic exercise counteracts arterial stiffening caused by acute MS.