Sports Sciences Commons^™

Dual Wavelength Diffuse Correlation Spectroscopy: A Novel Tool For Identifying Determinants Of Oxygen Consumption, Ryan Rosenberry, Chandan-Ganesh Bangalore-Yogananda, Susie Chung, Madison Munson, Wesley J. Tucker, Ye Zhu, Mark J. Haykowsky, Fenghua Tian, Michael Nelson

International Journal of Exercise Science: Conference Proceedings

Near-infrared diffuse correlation spectroscopy (DCS) is a novel method for measuring microvascular skeletal muscle blood flow. Our lab recently found excellent agreement between single wavelength DCS and Doppler ultrasound of the brachial artery during rhythmic handgrip exercise. PURPOSE: Here, we report new data utilizing a dual wavelength DCS system (785nm and 852nm), which extends our prior work by combining novel microvascular perfusion assessment with real-time quantification of tissue oxygenation. METHODS: We enrolled eight individuals (male/female: 3/5, mean: age 48±22 (range: 22-76 years), height 170±8cm, and weight 75±12kg). Subjects were instrumented with the DCS probe placed over the belly of …

Stress Testing For Diastolic Dysfunction: An Old Approach To A New Question, T. Jake Samuel, Rhys Beaudry, Mark J. Haykowsky, Satyam Sarma, Michael D. Nelson

International Journal of Exercise Science: Conference Proceedings

BACKGROUND: Currently, conventional cycle echocardiography is the recommended method for diagnosing diastolic dysfunction in patients with unexplained dyspnea upon exertion. However, this method has several underlying limitations including movement and respiratory artifact. These limitations are often exaggerated in patients who are obese and suffer from exertional dyspnea, and therefore limit its application in clinical diagnosis. Our group recently demonstrated that isometric handgrip echocardiography is a powerful sub-clinical diastolic discriminator that avoids the limitations of conventional cycle echocardiography and that can be easily implemented in the clinic. PURPOSE: However, to date it remains unclear how these two methodologies compare, and thus …

Evidence Of Racial Differences In Microvascular Function Among College-Aged Women, Jordan C. Patik, Bryon M. Curtis, John D. Akins, Aida Nasirian, Guillermo Olvera, R Matthew Brothers

International Journal of Exercise Science: Conference Proceedings

Microvascular dysfunction contributes to the development of hypertension and insulin resistance. The black population is at an elevated risk of both conditions relative to other racial groups. Previous studies indicate that college-aged black men, compared to their white counterparts, have impaired microvascular function as assessed by post-occlusion reactive hyperemia (RH). It is unknown whether this racial disparity is present in healthy, young adult black (BW) and white women (WW). Furthermore, whether nitric oxide-mediated cutaneous microvascular hyperemia during local heating (LH) is different in these populations has not been determined. Purpose: The purpose of this study was to test the hypothesis …

Associations Between Leg Lean Mass And Arterial Function In Pre-Menopausal And Post-Menopausal Women., Stephen M. Fischer

International Journal of Exercise Science: Conference Proceedings

Vascular dysfunction has been associated to sarcopenia, the age-related impairment in skeletal muscle mass, strength, and performance, in postmenopausal women. Previous research has shown inverse relationships between leg lean mass (LM) and arterial stiffness (measured as carotid to femoral pulse wave velocity, cfPWV) or pressure wave reflection (augmentation index, AIx) in men and women. AIx is an appropriate vascular marker in young but not middle-age/older adults, especially in women.

Purpose: To examine the associations between leg LM and arterial function (cfPWV and aortic AIx adjusted to 75bpm (AIx@75)) in pre-menopausal (PRE-M) and post-menopausal (POST-M) women. Methods: 47 women (24 PRE-M, …

Skeletal Muscle Oxygenation During Plantarflexion Exercise In Young-Old And Older-Old Adults, Arun Maharaj, Salvador J. Jaime, Justin Mason, Patrick Saracino, Arturo Figueroa

International Journal of Exercise Science: Conference Proceedings

The aging process is associated with a gradual decrease in exercise performance, leg muscle blood flow and oxygenation, and endothelial vascular reactivity. Purpose: To examine potential differences in femoral artery flow-mediated dilation (fa-FMD) and calf muscle oxygenation (HbO₂) during low-intensity plantarflexion exercise in older adults. Methods: 43 young-old (YO; n=24, 67 ± 1 years) and older-old (OO: n=19, 70 ± 1 years) individuals were included in this study. We measured body fat % and leg lean mass (LLM) by DEXA and handgrip maximal voluntary contraction (MVC) using a dynamometer. VO_2max was estimated using a submaximal treadmill test. …

The Comparison Of High-Intensity Interval Exercise Vs. Continuous Moderate-Intensity Exercise On C1q/Tnf-Related Protein-9 Expression And Flow-Mediated Vasodilation In Obese Individuals, Brandon G. Fico, Ryan S. Garten, Michael C. Zourdos, Michael Whitehurst, Peter J. Ferrandi, Katelyn M. Dodge, Gabriel Pena, Alexandra A. Rodriguez, Chun-Jung Huang

International Journal of Exercise Science: Conference Proceedings

PURPOSE: A recent novel adipocytokine, C1q/TNF-related protein-9 (CTRP9), has been shown to increase activation of endothelial nitric oxide synthase and reduce vasoconstrictors (e.g., endothelin-1). In addition, CTRP9 may play a compensatory role in obesity-related endothelial dysfunction. Although there is limited information regarding exercise-mediated CTRP9, high-intensity interval exercise (HIIE) has been shown to be as or more effective than continuous moderate-intensity exercise (CME) in improving indicators of endothelial function (e.g., brachial artery flow-mediated dilation [BAFMD]). Therefore, the purpose of this study was to investigate the effect of acute HIIE vs. CME on serum CTRP9 and BAFMD responses in obese individuals. METHODS: …

Effects Of A 4-Week Fitness Intervention On Vascular Health And Fitness In Firefighters Vs Non-Firefighters, T. Wisdo, A. Getty, L. Chavis, S. Close, C. Derella, W. Dicurcio, R. Jasinski, K. Mclaughlin, A. Perez, M. Corbin, A. Polimeni, J. Hill, D. Feairheller

International Journal of Exercise Science: Conference Proceedings

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Ambulatory Blood Pressure And Habitual Physical Activity In Chronic Kidney Disease, K. Suresh, D. Kirkman, B. Muth, J. Stock, D. Edwards

International Journal of Exercise Science: Conference Proceedings

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Experimental Intermittent Ischemia Augments Exercise-Induced Inflammatory Cytokine Production, D. Shill, K. Polley, B. Willingham, J. Call, J. Murrow, K. Mccully, N. Jenkins

International Journal of Exercise Science: Conference Proceedings

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The Utility Of Aortic Doppler Ultrasound Measurements In The Parasternal Long Axis View, S. Guarino, J. Masiddo, P. Hosick, E. Matthews

International Journal of Exercise Science: Conference Proceedings

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Blood Pressure Responses To Emergency Calls In Volunteer Firefighters And Emergency Medical Technicians, C. Derella, D. Feairheller

International Journal of Exercise Science: Conference Proceedings

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Blood Pressure Responses To Metaboreflex Activation During Acute And Chronic Volume Loading, M. Babcock, M. Brian, A. Robinson, J. Watso, M. Wenner, W. Farquhar

International Journal of Exercise Science: Conference Proceedings

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The Effects Of Acute Resistance Exercise On Vascular And Cognitive Function, M. Wade, W. Lefferts, K. Heffernan

International Journal of Exercise Science: Conference Proceedings

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Blood Lactate Levels And The Effects Of Recovery Methods On Repeated Sprint Performance, J. Todora, B. Augustine, N. Jendrzejewski, Z. Price, B. Smith, S. Paulson, W. Braun

International Journal of Exercise Science: Conference Proceedings

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Exercise As A Treatment For Peripheral Vascular Dysfunction Caused By Metabolic Syndrome And Depression, R. Skinner, K. Branyan, S. Brooks, S. Asano, H. Hoskinson, B. Mancini, I. Olfert, R. Bryner, J. Frisbee, P. Chantler

International Journal of Exercise Science: Conference Proceedings

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Endurance Training Attenuates Chemoreflex Sensitivity To Intermittent Hypoxia, A. Ross, C. Sauder, A. Cauffman, C. Blaha, U. Leuenberger

International Journal of Exercise Science: Conference Proceedings

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Can Deep Water Exercise Training Improve Arterial Stiffness In Women With Metabolic Syndrome?, C. Moore, S. Fournier, E. Devallance, K. Lee, D. Bonner, D. Donley, P. Chantler

International Journal of Exercise Science: Conference Proceedings

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24-Hour Heart Rate Is Related To Lower Extremity Venous Vascular Function In Persons With Paraplegia, A. Lombard, C. Cirnigliaro, D. Rosado-Rivera, S. Kirshblum, W. Bauman, J. Wecht

International Journal of Exercise Science: Conference Proceedings

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Effect Of Hypoxia On Cerebrovascular And Cognitive Function During Exercise, W. Lefferts, M. Babcock, M. Tiss, C. White, T. Brutsaert, K. Heffernan

International Journal of Exercise Science: Conference Proceedings

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Perivascular Adipose Tissue Diminishes Nitric Oxide Bioavailability In Metabolic Syndrome, E. Devallance, K. Branyan, A. Seldomridge, K. Lemaster, R. Skinner, S. Asano, V. Setola, J. Frisbee, P. Chantler

International Journal of Exercise Science: Conference Proceedings

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Topical Menthol Application Augments Cutaneous Microvascular Blood Flow, D. Craighead, C. Conlon, L. Alexander

International Journal of Exercise Science: Conference Proceedings

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Observation Of Inter-Arm Systolic Blood Pressure Difference During Exercise, C. Conner, M. Clarke, M. Holmstrup, B. Jensen

International Journal of Exercise Science: Conference Proceedings

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Menstrual Phase And The Vascular Response To Acute Resistance Exercise In Women, J. Augustine, K. Nunemacher, K. Heffernan

International Journal of Exercise Science: Conference Proceedings

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Acute Cheese Consumption Reduces Sodium Induced Cutaneous Microvascular Dysfunction By Decreasing Oxidative Stress, B. Alba, A. Stanhewicz, W. Kenney, L. Alexander

International Journal of Exercise Science: Conference Proceedings

Please refer to the pdf version of the abstract located adjacent to the title.