Wu Zeyi, Heffernan Kevin S
Department of Exercise Science, David B. Falk College of Sport and Human Dynamics, Syracuse University, Syracuse, NY, USA.
Department of Biobehavioral Sciences, Movement Science & Applied Physiology, Teachers College, Columbia University, 525 W 120th St, Building 528, New York, NY, USA.
Eur J Appl Physiol. 2024 Dec;124(12):3729-3739. doi: 10.1007/s00421-024-05573-5. Epub 2024 Aug 12.
Aerobic exercises like running and cycling may lower cardiovascular disease (CVD) risk through favorable effects on central blood pressure and vascular function. Arm ergometry is a popular exercise modality used in rehabilitation settings, but little is known regarding the central hemodynamic and vascular effects of this form of exercise.
To compare the acute effects of leg versus arm exercise on central blood pressure and vascular function.
Twenty-one participants (n = 11 female, Age 21 ± 3, BMI 24.5 ± 3.2 kg/m) completed two visits to the Human Performance Laboratory. Central systolic blood pressure (cSBP), central diastolic blood pressure (cDBP), and peripheral augmentation index (pAIx) were measured using a brachial oscillometric blood pressure cuff with measures being taken before and after 20 min of acute moderate-intensity (submaximal) arm or leg cycling exercise.
There was a condition-by-time interaction for pAIx (p = 0.011). pAIx slightly increased following arm exercise but significantly decreased following leg exercise. There was a condition-by-time interaction for cDBP (p = 0.011). cDBP significantly decreased following arm exercise but increased immediately following leg exercise. There was no condition-by-time interaction for cSBP (p = 0.721). There were similar acute increases in cSBP immediately post-exercise for both conditions.
Arm exercise increased pAlx and decreased cDBP compared to leg exercise. As an increase in pAIx may increase left ventricular work and a reduction in cDBP may reduce coronary perfusion pressure, these findings suggest that a single bout of arm exercise may not have the same favorable acute effect on central hemodynamic load as a single bout of leg exercise.
跑步和骑自行车等有氧运动可能通过对中心血压和血管功能产生有益影响来降低心血管疾病（CVD）风险。手臂测力计运动是康复环境中常用的一种运动方式，但对于这种运动形式对中心血流动力学和血管的影响知之甚少。
比较腿部运动与手臂运动对中心血压和血管功能的急性影响。
21名参与者（n = 11名女性，年龄21±3岁，体重指数24.5±3.2kg/m）完成了两次到人体运动实验室的访问。使用肱动脉示波血压袖带测量中心收缩压（cSBP）、中心舒张压（cDBP）和外周增强指数（pAIx），在进行20分钟急性中等强度（次最大）手臂或腿部骑自行车运动之前和之后进行测量。
pAIx存在条件×时间交互作用（p = 0.011）。手臂运动后pAIx略有增加，但腿部运动后显著降低。cDBP存在条件×时间交互作用（p = 0.011）。手臂运动后cDBP显著降低，但腿部运动后立即升高。cSBP不存在条件×时间交互作用（p = 0.721）。两种情况下运动后立即cSBP都有类似的急性升高。
与腿部运动相比，手臂运动增加了pAlx并降低了cDBP。由于pAIx的增加可能会增加左心室负荷，而cDBP的降低可能会降低冠状动脉灌注压，这些发现表明，单次手臂运动对中心血流动力学负荷可能没有单次腿部运动那样有利的急性影响。
