Abstract
Background Cardiovascular disease (CVD) contributes to be one of the leading causes of death in the population worldwide. Carotid arterial stiffness and local hemodynamics are associated with the occurrence and development of CVD. Therefore, understanding the alterations of human carotid arterial stiffness and hemodynamics is of great clinical value in the prevention and treatment of CVD. Objective In this study, we aimed to investigate the acute effect of high-intensity interval cycling (HIIC) on carotid arterial stiffness and hemodynamics in sedentary. Methods Thirty volunteered healthy sedentary males were enrolled in this study. HIIC intervention (3 sets, 20 s per set) was performed individually. A color Doppler ultrasound was applied to detect the images of the arterial inner diameters and center-line velocity waveforms at the right common carotid artery at different time points (at rest, 3 min, 15 min, and 30 min) after HIIC. Synchronously, electronic manometer was used to measure the systolic and diastolic pressures at the left brachial artery. Results Arterial stiffness increased and arterial diameter decreased significantly after acute HIIC. The variation in stiffness persisted for 30 min, at least 15 min longer than the change in diameter. At 3 min after exercise, maximum and mean wall shear stresses (WSS) increased and minimum WSS was also higher than the resting value. At 30 min after exercise, WSS returned to the baseline, but oscillating shear index was still higher than the resting value. Conclusions In summary, arterial stiffness and hemodynamics changed significantly not only at 3 min but also at 30 min after acute HIIC.
Highlights
Cardiovascular disease (CVD) is a significant and evergrowing problem globally, accounting for 31% of mortality [1] higher than malignant diseases and other pathologies.e World Health Organization (WHO) estimates that over 75% of premature CVD is preventable, and protective factors can contribute to reduce the growing burden on both affected individuals and health care systems [2]
We aimed to investigate the acute effects of high-intensity interval cycling (HIIC) on carotid arterial stiffness and hemodynamic parameters in sedentary population. is study will provide some suggestions for research on the effects of HIIC on arteries and its hemodynamic response and provide advice on the formulation of high-intensity interval exercise program
Discussion e aim of the present study was to evaluate the acute effects of HIIC on carotid arterial stiffness and hemodynamic parameters in sedentary people. rough the analysis and calculation of our experimental data, we found that acute HIIC significantly altered the structure and function of common carotid artery
Summary
Cardiovascular disease (CVD) is a significant and evergrowing problem globally, accounting for 31% of mortality [1] higher than malignant diseases and other pathologies.e World Health Organization (WHO) estimates that over 75% of premature CVD is preventable, and protective factors can contribute to reduce the growing burden on both affected individuals and health care systems [2]. Carotid arterial stiffness is closely related to the occurrence and development of atherosclerosis and refers to as the surrogate markers for CVD [3]. Long-term regular aerobic exercise can significantly reduce arterial stiffness and improve arterial structure [5, 6]. Carotid arterial stiffness and local hemodynamics are associated with the occurrence and development of CVD. Erefore, understanding the alterations of human carotid arterial stiffness and hemodynamics is of great clinical value in the prevention and treatment of CVD. We aimed to investigate the acute effect of high-intensity interval cycling (HIIC) on carotid arterial stiffness and hemodynamics in sedentary. Arterial stiffness increased and arterial diameter decreased significantly after acute HIIC. Arterial stiffness and hemodynamics changed significantly at 3 min and at 30 min after acute HIIC
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