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Renal Vascular Responsiveness To Sympathetic Activation Is Not Affected By Prior High Intensity Exercise, J. Larson, J. Benati, C. Chapman, N. Vargas, B. Johnson, P. Lema, Z. Schlader

International Journal of Exercise Science: Conference Proceedings

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The Relationship Between The Inter-Arm Systolic Blood Pressure Difference, Vascular Health, And Cognitive Function, D. Komoroski, S. Allen, B. Jensen, M. Holmstrup

International Journal of Exercise Science: Conference Proceedings

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The Relationship Between Body Mass Index And Aortic Stiffness In Females Across The Lifespan, A. Keller, W. Lefferts, J. Augustine, J. Deblois, K. Heffernan

International Journal of Exercise Science: Conference Proceedings

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Skin Erythema And Blood Flow Responses To Acute Ultraviolet Radiation Exposure, I. Hill, S. Wolf, A. Stanhewicz, W. Kenney

International Journal of Exercise Science: Conference Proceedings

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Greater Forearm Blood Flow Is Associated With Better Walking Economy And Gait Speed In Older Adults, K. Hamidi, D. Dobrosielski, J. Schrack, N. Knuth

International Journal of Exercise Science: Conference Proceedings

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Circulating Angiogenic Cell And Microparticle Response To Prolonged Sitting, W. Evans, D. Shill, R. Landers-Ramos, L. Stoner, Q. Willey, D. Credeur, J. Hagberg, S. Prior, E. Hanson

International Journal of Exercise Science: Conference Proceedings

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Effects Of Oral Saline Consumption On Heart Rate Variability And Cardiovagal Baroreflex Sensitivity, A. Enrique, J. Del Vecchio, P. Hosick, E. Matthews

International Journal of Exercise Science: Conference Proceedings

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Oral Saline Consumption And The Exercise Pressor Reflex, J. Del Vecchio, P. Hosick, E. Matthews

International Journal of Exercise Science: Conference Proceedings

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Extra- And Intra- Renal Vascular Responses To Sympathetic Activation Are Not Modified Following Cooling Recovery, C. Chapman, J. Benati, N. Vargas, B. Johnson, P. Lema, Z. Schlader

International Journal of Exercise Science: Conference Proceedings

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Comparing Vascular Deficiency Between Caucasian And Hispanic Metabolic Syndrome Women, Lorenzo Juarez, Jerene Yazzie, Andi Johnson, Abraham Gomez, Klaudia Szych, Ariel Gomez, Matthew A. Barlow Phd

International Journal of Exercise Science: Conference Proceedings

Cardiovascular disease (CVD) is one of the leading causes of death in the United States especially in Hispanics. People with Metabolic syndrome (MetSyn) generally have high blood pressure, excess body fat and fasting glucose and abnormal cholesterol. We evaluated Hispanic (HS) and Caucasian (CA) women diagnosed with MetSyn in New Mexico and sedentary control with an initial screening and vascular measurements. Previous work from our lab indicated significant deficiencies between the control and MetSyn women in the measurements of the vascular mechanisms of developing deficits associated with the metabolic deficiencies. We aimed to identify if the health disparate HS population …

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Dynamic Graded Muscle Exercise In Sedentary Metabolic Syndrome Women; Effects On Cardiac Workload, Abraham Gomez, Lorenzo Juarez, Ariel Gomez, Klaudia Szych, Andi Johnson, Jerene Yazzie, Matthew A. Barlow Phd

International Journal of Exercise Science: Conference Proceedings

Metabolic syndrome (MetSyn) individuals presented declining sensitivity to insulin (p=.0201) as calculated by insulin sensitivity index (ISI-60) measurement. The young women categorized as MetSyn were previously found to have significantly lower (ISI-60) from healthy controls (Gomez, 2018), and had higher percent body fat (p< .05), diminished HDL (p< .05), and higher expenditure of Kcals (p=.04) compared to controls as measured by 7 day accelerometer. Cardiovascular modification is hypothesized to involve progressive dysfunction of the insulin mediated AKT/PKB eNOS pathway. PURPOSE: The purpose of this study is to identify if daily sedentary activity is associated with myocardial workload in the development of the metabolic disorder. We hypothesized metabolic syndrome individuals Rate Pressure Product (RPP) would be at elevated at rest and through various workloads of small muscle exercise. METHODS: We compared daily activity to heart …

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Heart Rate And Blood Pressure Recovery Responses To Different Modes Of Recovery Following Moderate Intensity Exercise In Females, Emily L. Zumbro, Greg A. Ryan, Stephen J. Rossi, John Dobson

International Journal of Exercise Science: Conference Proceedings

Heart rate (HR) and blood pressure (BP) increases during exercise to meet metabolic demands through parasympathetic nervous system (PNS) withdrawal and sympathetic nervous system (SNS) stimulation. Heart rate recovery (HRR) and blood pressure recovery (BPR) following exercise are both important factors related to cardiovascular health. PURPOSE: The purpose of this study was to examine the effects of a slow-breathing technique compared to other forms of recovery on HRR and BPR following moderate-intensity exercise. METHODS: Nine moderately-active (20.22 ± 0.97 years) female participants cycled at 70% of their heart rate maximum (HR_max) on a cycle ergometer for …

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Similarities In Vasoconstrictor Responsiveness To Exogenous Norepinephrine In The Cutaneous Circulation Between Young Black And White Men, Rauchelle E. Richey, John Akins, Jeremiah Campbell, Guillermo Olvera, Zachary Martin, R Matthew Brothers

International Journal of Exercise Science: Conference Proceedings

Black (BL) men have an increased risk of hypertension and CVD compared to white (WH) men which is partially related to vascular dysfunction. In particular, elevated vascular resistance and increased sympathetic vascular transduction (SVT; greater constrictor and blood pressure responses for a burst of sympathetic nerve activity) may be a contributing factor. Previous reports indicate that BL men have exaggerated responses to a variety of stressors including cold pressor, orthostasis, and exercise; while also exhibiting increased SVT at rest. Additionally, rodent models indicate that oxidative stress contributes to heightened SVT. For example, hypertensive rats have elevated SVT which is attenuated …

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The Effects Of Combined Exercise Training On Flow-Mediated Dilation And C-Reactive Protein In Overweight, Postmenopausal Women, Carmen A. Cook, Andreas Kreutzer, Michael M. Levitt, Maria A. Cardenas, Gail Teagle, Kirby Thames, Dennis J. Cheek, Melody D. Phillips

International Journal of Exercise Science: Conference Proceedings

Obesity-related inflammation, especially coupled with a decline in estrogen post menopause, leads to endothelial dysfunction where the endothelium is unable to adequately dilate in response to sheer stress. C-Reactive Protein (CRP) may cause endothelial dysfunction through superoxide production and downregulation of endothelial nitric oxide synthase leading to decreased nitric oxide production. Exercise training improves endothelial function through adaptations to increase nitric oxide bioavailability and regulation of superoxide production. PURPOSE: To determine the influence of acute and chronic combined resistance and aerobic exercise on flow-mediated dilation (FMD) and CRP in overweight to obese, postmenopausal women, as well as determining potential …

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Walking With Leg Blood Flow Restriction: Wide-Rigid Cuffs Vs. Narrow-Elastic Bands, Sten Stray-Gundersen, Savannah V. Wooten, Hirofumi Tanaka

International Journal of Exercise Science: Conference Proceedings

Blood flow restriction (BFR) training has become a popular form of exercise in recent years. The concept is that light-load exercise with BFR elicits similar adaptations achieved with heavy-load exercise. Walking exercise in combination with pressurized wide-rigid (WR) cuffs has been shown to elicit higher cardiac workload and a vascular dysfunction due presumably to reperfusion injury to the endothelium. In contrast, narrow-elastic (NE) BFR bands may elicit different hemodynamic effects, as the limb is able to increase in diameter with increased blood flow accompanying exercise. PURPOSE: To compare two distinct forms of BFR bands during light-intensity exercise on cardiovascular …

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Attenuated Pulsatile Load During Metaboreflex Activation Is Associated With Excess Adiposity In Dynapenic Postmenopausal Women, Arun Maharaj, Salvador Jaime, Stephen Fischer, Arturo Figueroa

International Journal of Exercise Science: Conference Proceedings

The age-related loss in muscle strength (dynapenia) is associated with elevated blood pressure (BP) and fat mass (FM). Aortic pulse pressure (PP), rather than brachial PP, more closely relates to cardiovascular events because it represents left ventricular pulsatile load, which is particularly important in older women. Purpose: To examine the impact of dynapenia and adiposity on aortic BP responses to metaboreflex activation (post-exercise muscle ischemia, PEMI) in postmenopausal women. Methods: 71 postmenopausal women [(dynapenic, n=41, 57±1 years), (non-dynapenic, n=30, 59±1 years)] were included in this study. FM, percent body fat (BF%) and percent lean mass (LM%) were measured using Dual …

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Lower Leg Lean Mass Is Associated With Reduced Pulse Pressure Amplification In Postmenopausal Women, Stephen M. Fischer, Salvador J. Jaime, Arun Maharaj, Arturo Figueroa

International Journal of Exercise Science: Conference Proceedings

Sarcopenia, the age-related loss of skeletal muscle mass, has been associated with increased arterial stiffness (pulse wave velocity, PWV). Lower leg muscle mass has been associated with increased brachial-ankle PWV (baPWV), a measure of systemic arterial stiffness. Pulse pressure (PP) is lower in the aorta compared to the brachial artery (PP amplification, PPA), in healthy individuals. PPA decreases with aging due to increased aortic stiffening. Lower PPA is an independent predictor of cardiovascular death. It is unknown whether leg muscle mass is associated with lower PPA in postmenopausal women. Purpose: To examine relationships between leg lean mass (LegLM), PPA, and …

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The Effect Of The Menstrual Cycle On Hemoglobin Mass, Melissa Keller, Sophie Lalande

International Journal of Exercise Science: Conference Proceedings

The impact of the menstrual cycle on oxygen-carrying capacity remains equivocal. Previous studies reported either reductions or no significant changes in hemoglobin concentration during the follicular phase when compared to the luteal phase of the menstrual cycle. Changes in plasma volume associated with fluctuating estrogen and progesterone levels likely contribute to the variations in hemoglobin concentration observed throughout the menstrual cycle. Thus, measures of hemoglobin concentration do not accurately represent the oxygen-carrying capacity of the blood. Hemoglobin mass represents a more direct measure of oxygen-carrying capacity. However, the impact of menstrual blood loss on hemoglobin mass remains unknown. Purpose: To …

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Hemodynamic And Pressor Responses To Combination Of Yoga And Blood Flow Restriction, Savannah V. Wooten, Sten Stray-Gundersen, Hirofumi Tanaka

International Journal of Exercise Science: Conference Proceedings

Blood flow restriction (BFR) training has been increasingly incorporated into a more common activity of daily exercise (e.g., yoga). However, BFR may increase blood pressure and myocardial oxygen demand by augmenting vascular resistance. Yoga is characterized by systemic isometric exercises and accompanied by marked pressor responses. This raises the concern of exaggerated cardiovascular responses when yoga is performed with BFR. Purpose: To determine the impact of a combination of yoga and BFR on cardiovascular responses. Methods: Twenty young healthy participants (M =10, F=10) performed 20 yoga poses with and without BFR bands placed on both legs. Beat by beat blood …

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Blood Pressure, Body Composition, And Plasma Lipids Are Not Related To Indices Of Vascular Health, Jason Lytle Mr., Karina L. Wilson, Sean T. Stanelle, Steven E. Martin, Stephen F. Crouse

International Journal of Exercise Science: Conference Proceedings

Blood pressure, body composition and plasma lipoprotein concentrations are important markers for cardiovascular disease (CVD) risk. PURPOSE: To examine potential relationships between blood pressure, body composition, plasma lipoprotein concentrations and indices of vascular health as assessed with carotid-femoral pulse wave velocity (PWV) and flow mediated dilation (FMD). METHODS: Fourteen male subjects (age 32 ± 13 yrs, height 177.6 ± 6.6 cm, weight 83.3 ± 9.0 kg, lean mass 61.7 ± 6.3 kg, fat mass 18.4 ± 6.8 kg) volunteered for lab testing as part of a health assessment program, which included resting blood pressure, dual energy x-ray absorptiometry …

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Comparison Of Acute Cardiometabolic Responses In A 7-Minute Body Weight Circuit To A 7-Minute Hiit Cycle Protocol, Cruz Armas, Robert J. Kowalsky Jr, Christopher M. Hearon

International Journal of Exercise Science: Conference Proceedings

Many smartphone applications available promote exercise engagement, specifically in short bouts of time. One such application “The 7-minute workout challenge” promotes a brief exercise bout, however details on the potential cardiometabolic health benefit is lacking. Purpose:To investigate the acute cardiometabolic responses of a 7-minute body-weight resistance exercise circuit (HICE) compared to a 7-minute high intensity interval training cycle protocol (HIIE). Methods: Apparently healthy and active young adults (N=12, 50% Female, 24.0±3.4 yr, BMI: 28.1±6.4 kg/m²) were enrolled in a randomized crossover study (HICE vs HIIE). The 12 HICE exercises were 30 seconds each using a standardized cadence, …

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