Ryan Garten

Ryan Garten, Ph.D.

Associate Professor
Program Coordinator for Exercise Science
(804) 828-1948
500 Academic Centre
1020 West Grace St.


2015 - Postdoctoral Fellowship, Utah Vascular Research Laboratory, University of Utah, UT.

2011 - Ph.D. in Exercise Physiology, University of North Carolina at Greensboro, NC.

2006 - M.S. in Exercise Physiology, University of Mississippi, MS.

2004 - B.S. in Exercise and Sport Science, University of Mississippi, MS.

Teaching Assignments

HPEX 475 - Cardiovascular Pathophysiology

HPEX 610 - Laboratory Techniques in Movement Sciences

REMS 701 - Advanced Exercise Physiology

REMS 703 - Cardiovascular Exercise Physiology

Research Interests

My primary interests are determining the impact of oxidative stress on vascular function and blood flow regulation in healthy and diseased populations. Within this focus my research interests are numerous as my laboratory examines the relationship between oxidant-antioxidant balance and vascular health in various populations such as fit and unfit young adults, older adults, and individuals possessing mental health disorders (e.g. PTSD, generalized anxiety disorder) or undertaking negative lifestyle behaviors (sedentary activity, poor sleep, poor diet). Moreover, we utilize numerous interventions to evaluate vascular function/adaptation and blood flow regulation such as acute and chronic exercise (small and large muscle mass), nutraceuticals supplementation (vitamin C, MitoQ, folic acid), prolonged sedentary behavior, and high salt intake.

Select Publications

Garten, R. S., Darling, A., Weggen, J., Decker, K., Hogwood, A. C., Michael, A., . . . McIntyre, A. (2019). Aerobic training and vascular protection: Insight from altered blood flow patterns. Exp Physiol.

Garten, R. S., Goldfarb, A., Crabb, B., & Waller, J. (2015). The Impact of Partial Vascular Occlusion on Oxidative Stress Markers during Resistance Exercise. Int J Sports Med, 36(7), 542-549.  

Garten, R. S., Groot, H. J., Rossman, M. J., Gifford, J. R., & Richardson, R. S. (2014). The role of muscle mass in exercise-induced hyperemia. J Appl Physiol, 116(9), 1204-1209.  

Garten, R. S., Hogwood, A. C., Weggen, J., Decker, K., Darling, A., Maniyar, R., & Michael, A. (2019). Examining Arm Vascular Function and Blood Flow Regulation in Row-trained Males. Med Sci Sports Exerc. 

Garten, R. S., Hogwood, A. C., Weggen, J. B., Fralin, R. C., LaRosa, K., Lee, D., . . . Scott, M. (2019). Aerobic training status does not attenuate prolonged sitting-induced lower limb vascular dysfunction. Appl Physiol Nutr Metab, 44(4), 425-433. 

Garten, R. S., Scott, M. C., Zuniga, T. M., Hogwood, A. C., Fralin, R. C., & Weggen, J. (2019). A Prior High-Intensity Exercise Bout Attenuates the Vascular Dysfunction Resulting From a Prolonged Sedentary Bout. J Phys Act Health, 1-9. 

Gifford, J. R., Garten, R. S., Nelson, A. D., Trinity, J. D., Layec, G., Witman, M. A., . . . Richardson, R. S. (2016). Symmorphosis and skeletal muscle VO2 max : in vivo and in vitro measures reveal differing constraints in the exercise-trained and untrained human. J Physiol, 594(6), 1741-1751. 

Groot, H. J., Rossman, M. J., Garten, R. S., Wang, E., Hoff, J., Helgerud, J., & Richardson, R. S. (2016). The Effect of Physical Activity on Passive Leg Movement-Induced Vasodilation with Age. Med Sci Sports Exerc, 48(8), 1548-1557. 

Lee, J. F., Barrett-O'Keefe, Z., Nelson, A. D., Garten, R. S., Ryan, J. J., Nativi-Nicolau, J. N., . . . Wray, D. W. (2016). Impaired skeletal muscle vasodilation during exercise in heart failure with preserved ejection fraction. Int J Cardiol, 211, 14-21. 

Rossman, M. J., Trinity, J. D., Garten, R. S., Ives, S. J., Conklin, J. D., Barrett-O'Keefe, Z., . . . Richardson, R. S. (2015). Oral antioxidants improve leg blood flow during exercise in patients with chronic obstructive pulmonary disease. Am J Physiol Heart Circ Physiol, 309(5), H977-985. 

Witman, M. A., Garten, R. S., Gifford, J. R., Groot, H. J., Trinity, J. D., Stehlik, J., . . . Richardson, R. S. (2015). Further Peripheral Vascular Dysfunction in Heart Failure Patients With a Continuous-Flow Left Ventricular Assist Device: The Role of Pulsatility. JACC Heart Fail, 3(9), 703-711.

Publications listed on PubMed.

Grant Support (active and prior)

Title: Posttraumatic stress disorder, vascular function, and exercise tolerance: Insight from small and large muscle mass exercise
Agency: Center for Clinical and Translation Research (CCTR) Endowment Fund, Virginia Commonwealth University
Amount: $25,200
Role: Principal Investigator.

Title: Age and Sex Limitations to Vascular Plasticity: Insight from Single Leg Exercise Training.
Agency: VCU College of Humanities and Sciences Catalyst Award
Amount: $18,500
Role: Principal Investigator.

Title: The Causes and Consequences of Poor Sleep Quality: The Impact of Physical (In)Activity
Agency: VCU College of Humanities and Sciences Seed Award
Amount: $5,000
Role: Co-Investigator.