Baykara Murat, Demirel Adnan, Yavuzatmaca İhsan, Bilgen Mehmet
Department of Radiology, Kahramanmaraş Sütçü İmam University, Faculty of Medicine, Kahramanmaraş, Turkey.
Departments of Physical Medicine and Rehabilitation, Kahramanmaraş Sütçü İmam University, Faculty of Medicine, Kahramanmaraş, Turkey.
J Ultrasound Med. 2017 Feb;36(2):353-359. doi: 10.7863/ultra.15.12043. Epub 2016 Dec 31.
The purpose of this study was to investigate the response of arterial stiffness in individuals with a sedentary lifestyle at 4 weeks after terminating a 2-week aerobic exercise session.
Arterial stiffness was evaluated in 38 participants before starting and after completing a prescribed aerobic exercise program and also at 4 weeks after returning back to their sedentary lifestyle. Parameters regarding arterial compliance, distensibility, wall stress, and the elastic modulus were estimated from the information gained from sonography on the dimensions of carotid and femoral arteries and a sphygmomanometer on the pulse pressure.
Primary outcomes included whether short-term aerobic exercise reduced the heart rate, arterial pressure, and intima-media thickness and improved vascular biomechanics in physically inactive but otherwise healthy individuals. The benefits gained in arterial compliance and distensibility deteriorated with termination of exercise, but diastolic wall stress and the elastic modulus improved further.
In individuals with sedentary lifestyles, short-term aerobic exercise has strong four-week residual benefits on diastolic wall stress and the elastic modulus, but the effects appear to be negligible on arterial stiffness and distensibility.
本研究旨在调查久坐不动的个体在为期2周的有氧运动课程结束后4周时动脉僵硬度的反应。
在38名参与者开始规定的有氧运动计划之前、完成之后以及恢复久坐生活方式4周后，对其动脉僵硬度进行评估。根据超声检查获得的颈动脉和股动脉尺寸信息以及血压计测量的脉压，估算动脉顺应性、扩张性、壁应力和弹性模量等参数。
主要结果包括短期有氧运动是否能降低身体不活动但其他方面健康的个体的心率、动脉压和内膜中层厚度，并改善血管生物力学。运动终止后，动脉顺应性和扩张性所获得的益处逐渐消失，但舒张期壁应力和弹性模量进一步改善。
对于久坐不动的个体，短期有氧运动对舒张期壁应力和弹性模量有为期四周的显著残留益处，但对动脉僵硬度和扩张性的影响似乎微不足道。
