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首页> 外文期刊>Journal of Sport and Health Science >The effect of acute aerobic exercise on central arterial stiffness, wave reflections, and hemodynamics in adults with diabetes: A randomized cross-over design
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The effect of acute aerobic exercise on central arterial stiffness, wave reflections, and hemodynamics in adults with diabetes: A randomized cross-over design

机译：急性有氧运动对糖尿病成人中枢动脉僵硬，波反射和血流动力学的影响：随机交叉设计

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BackgroundIndividuals with diabetes have greater central arterial stiffness, wave reflections, and hemodynamics, all of which promote the accelerated cardiovascular pathology seen in this population. Acute aerobic exercise has been shown to be an effective strategy for reducing central arterial stiffness, wave reflections, and hemodynamics in healthy individuals; however, the effects of acute aerobic exercise in reducing these outcomes is not well established in people with diabetes. Recently, implementation of high-intensity interval exercise (HIIE) has shown superior improvements in cardiovascular health outcomes when compared to traditional aerobic exercise. Yet, the effect of HIIE on the aforementioned outcomes in people with diabetes is not known. The purpose of this study was to (i) describe the central arterial stiffness, wave reflections, and hemodynamic responses to a bout of HIIE and moderate-intensity continuous exercise (MICE) in adults with diabetes; and (ii) compare the effects of HIIE and MICE on the aforementioned outcomes.MethodsA total of 24 adult men and women (aged 29–59 years old) with type 1 (n?=?12) and type 2 (n?=?12) diabetes participated in a randomized cross-over study. All participants completed the following protocols: (i) HIIE: cycling for 4?×?4 min at 85%–95% of heart rate peak (HRpeak), interspersed with 3 min of active recovery at 60%–70%HRpeak; (ii) MICE: 33 min of continuous cycling at 60%–70%HRpeak; and (iii) control (CON): lying quietly in a supine position for 30 min.ResultsA significant group?×?time effect was found for changes in central systolic blood pressure (F?=?3.20,p?=?0.01) with a transient reduction for the HIIE group but not for the MICE or CON groups. There was a significant group?×?time effect for changes in augmentation index at a heart rate of 75 beats/min (F?=?2.32,p?=?0.04) with a decrease following for HIIE and MICE but not for CON. For all other measures of central arterial stiffness and hemodynamics, no significant changes were observed (p> 0.05).ConclusionA bout of HIIE appears to lead to a greater transient reduction in central systolic blood pressure than the reduction observed following MICE; however, both HIIE and MICE improved augmentation index at a heart rate of 75 beats/min in people with diabetes. There was no significant difference in response to HIIE and MICE in all outcomes. This provides preliminary evidence on the role of HIIE on such outcomes in people with diabetes.
机译：背景技术与糖尿病有更大的中枢动脉僵硬，波反射和血流动力学，所有这些都促进了这群人群中看到的加速心血管病理学。已被证明急性有氧运动是减少健康个体中央动脉僵硬，波反射和血流动力学的有效策略;然而，急性有氧运动在减少这些结果中的影响并不是糖尿病的人。最近，与传统的有氧运动相比，高强度间隔运动（HIIE）的实施表明了心血管健康状况的优越性改善。然而，HIIE对糖尿病人类上述结果的影响是不名的。本研究的目的是（i）描述患有糖尿病的成年人的HIIE和中等强度连续运动（小鼠）的中枢动脉僵硬，波反射和血液动力学反应; （ii）比较HIIE和小鼠对上述结果的影响。总共24名成人男女（年龄29-59岁），1型（n？=？12）和2型（n？=？ 12）糖尿病参与了随机交叉研究。所有参与者完成了以下方案：（i）HIIE：循环4？×4分钟，以85％-95％的心率峰（HRPeak），穿插3分钟的活性回收率，60％-70％HRPeak; （ii）小鼠：33分钟连续循环，60％-70％HRPeak; （iii）控制（CON）：静静地在仰卧位仰卧30分钟。结果是有关的群体？×？时间效应是中央收缩压的变化（F？= 3.20，P？= 0.01） HIIE组的瞬态减少，但不适用于小鼠或CON组。有一个重要的群体？××？时间效应，增强指数的变化，心率为75次/分钟/分钟（f？=？2.32，p？= 0.04），减少为HIIE和小鼠，但不是骗局。对于中枢动脉僵硬和血流动力学的所有其他措施，未观察到显着的变化（p> 0.05）。Conclusiona的HIIENA似乎导致中央收缩压的瞬态降低而不是小鼠所观察到的减少;然而，HIIE和小鼠的既有糖尿病人类的心率为75次/分钟，改善了增强指数。在所有结果中对Hiee和小鼠的回应没有显着差异。这为有关HIIE在糖尿病患者中的这种成果的作用提供了初步证据。

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