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Gurovich AN, Montalvo S, Hassan PF, Gomez M. Carotid Arterial Compliance during Different Intensities of Submaximal Endurance Exercise. J Clin Med 2024; 13:3316. [PMID: 38893027 PMCID: PMC11173299 DOI: 10.3390/jcm13113316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/02/2024] [Accepted: 06/03/2024] [Indexed: 06/21/2024] Open
Abstract
Background: The purpose of this investigation was to determine the elastic characteristics of the common carotid artery (CCA) during endurance exercise at 3 different intensities. Methods: Twenty young healthy participants (10 males and 10 females) participated in this quasi-experimental cross-sectional study. Participants were tested in two sessions: (1) we took resting measurements of the elastic characteristics of the CCA and performed a cardiopulmonary exercise test (CPET) on a cycle ergometer to determine submaximal exercise intensities, and we conducted (2) measurements of the elastic characteristics of the CCA while exercising in a cycle ergometer at 3 intensities based on blood lactate levels of low (<2 mmol/L), moderate (2-4 mmol/L), and high (>4 mmol/L). Beta stiffness was calculated using CCA diameters during systole and diastole, measured with high-definition ultrasound imaging, and CCA systolic and diastolic pressures were measured via applanation tonometry. Results: Overall, there were no differences between males and females in terms of any of the studied variables (p > 0.05). In addition, no significant changes were found in the CCA beta stiffness and vessel diameter (p > 0.05) between exercise intensities. There was a significant exercise intensity effect on CCA systolic pressure (p < 0.05), but not on CCA diastolic pressure (p > 0.05). Conclusions: The biomechanical characteristics of the CCA, determined via compliance and beta-stiffness, do not change during cyclical aerobic exercise, regardless of exercise intensity.
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Affiliation(s)
- Alvaro N. Gurovich
- Clinical Applied Physiology Laboratory, College of Health Sciences, The University of Texas at El Paso, El Paso, TX 79968, USA; (P.F.H.); (M.G.)
- Department of Physical Therapy and Movement Science, The University of Texas at El Paso, El Paso, TX 79968, USA
| | - Samuel Montalvo
- Wu-Tsai Human Performance Alliance, Division of Cardiovascular Medicine, Stanford School of Medicine, Stanford University, Stanford, CA 94305, USA;
| | - Progga F. Hassan
- Clinical Applied Physiology Laboratory, College of Health Sciences, The University of Texas at El Paso, El Paso, TX 79968, USA; (P.F.H.); (M.G.)
| | - Manuel Gomez
- Clinical Applied Physiology Laboratory, College of Health Sciences, The University of Texas at El Paso, El Paso, TX 79968, USA; (P.F.H.); (M.G.)
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In Vitro Exercise-Induced Endothelial Shear Stress Protects the Vascular Endothelium. Cardiopulm Phys Ther J 2022. [DOI: 10.1097/cpt.0000000000000214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Montalvo S, Gomez M, Lozano A, Arias S, Rodriguez L, Morales-Acuna F, Gurovich AN. Differences in Blood Flow Patterns and Endothelial Shear Stress at the Carotid Artery Using Different Exercise Modalities and Intensities. Front Physiol 2022; 13:857816. [PMID: 35620608 PMCID: PMC9127153 DOI: 10.3389/fphys.2022.857816] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/22/2022] [Indexed: 12/15/2022] Open
Abstract
Endothelial dysfunction is the first pathophysiological step of atherosclerosis, which is responsible for 90% of strokes. Exercise programs aim to reduce the risk of developing stroke; however, the majority of the beneficial factors of exercise are still unknown. Endothelial shear stress (ESS) is associated with endothelial homeostasis. Unfortunately, ESS has not been characterized during different exercise modalities and intensities in the carotid artery. Therefore, the purpose of this study was to determine exercise-induced blood flow patterns in the carotid artery. Fourteen apparently healthy young adults (males = 7, females = 7) were recruited for this repeated measures study design. Participants completed maximal oxygen consumption (VO2max) tests on a Treadmill, Cycle-ergometer, and Arm-ergometer, and 1-repetition maximum (1RM) tests of the Squat, Bench Press (Bench), and Biceps Curl (Biceps) on separate days. Thereafter, participants performed each exercise at 3 different exercise intensities (low, moderate, high) while a real-time ultrasound image and blood flow of the carotid artery was obtained. Blood flow patterns were assessed by estimating ESS via Womersley’s estimation and turbulence via Reynold’s number (Re). Data were analyzed using a linear mixed-effects model. Pairwise comparisons with Holm-Bonferroni correction were conducted with Hedge’s g effect size to determine the magnitude of the difference. There was a main effect of intensity, exercise modality, and intensity * exercise modality interaction on both ESS (p < 0.001). Treadmill at a high intensity yielded the greatest ESS when compared to the other exercise modalities and intensities, while Bench Press and Biceps curls yielded the least ESS. All exercise intensities across all modalities resulted in turbulent blood flow. Clinicians must take into consideration how different exercise modalities and intensities affect ESS and Re of the carotid artery.
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Affiliation(s)
- Samuel Montalvo
- Clinical Applied Physiology Lab, College of Health Sciences, The University of Texas at El Paso, El Paso, TX, United States
| | - Manuel Gomez
- Clinical Applied Physiology Lab, College of Health Sciences, The University of Texas at El Paso, El Paso, TX, United States
| | - Alondra Lozano
- Clinical Applied Physiology Lab, College of Health Sciences, The University of Texas at El Paso, El Paso, TX, United States
| | - Sabrina Arias
- Clinical Applied Physiology Lab, College of Health Sciences, The University of Texas at El Paso, El Paso, TX, United States
| | - Lisa Rodriguez
- Clinical Applied Physiology Lab, College of Health Sciences, The University of Texas at El Paso, El Paso, TX, United States
- Doctor of Physical Therapy Program, Rehabilitation Sciences Department, College of Health Sciences, The University of Texas at El Paso, El Paso, TX, United States
| | - Francisco Morales-Acuna
- Clinical Applied Physiology Lab, College of Health Sciences, The University of Texas at El Paso, El Paso, TX, United States
| | - Alvaro N. Gurovich
- Clinical Applied Physiology Lab, College of Health Sciences, The University of Texas at El Paso, El Paso, TX, United States
- Doctor of Physical Therapy Program, Rehabilitation Sciences Department, College of Health Sciences, The University of Texas at El Paso, El Paso, TX, United States
- *Correspondence: Alvaro N. Gurovich,
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