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Shawn Bearden

Shawn E. Bearden, Ph.D.

Exercise Physiology

Office: Life Sciences 443

(208) 282-6269



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Curriculum Vitae


Lab: Life Sciences 443

(208) 282-6269

Science of Ultra

We study human endurance physiology.


Annual lectures in Exercise Science for Pharmacy (PharmD) and Physician Assistant programs
BIOL 4471/5571 - Fundamentals of Biological Imaging/Biological Imaging BIOL 3301/3302 - Anatomy & Physiology
BIOL 4481 - Independent Problems (undergraduate); 1-3 students each semester
BIOL 4499 - Human Exercise Physiology
BIOL 5599 - Comparative Physiology of Exercise
BIOL 6652 - Advanced Studies in Physiology
BIOL 5581 - Independent Problems (graduate)
BIOL 6648 - Graduate Problems

Biographical Sketch

Dr. Bearden is an exercise physiologist with particular interest in ultra endurance performance. His doctoral training was in a combined nutrition and exercise science department at Florida State University with an emphasis on bioenergetics. Postdoctoral training took him to the Yale School of Medicine where he developed novel approaches to studying the microcirculation of skeletal muscle. Upon arriving to Idaho State University in the fall of 2004, he built his laboratory in the study of muscle and brain microcirculation. He has now returned to his roots in performance physiology, collaborates with the US Army on warfighter performance, studies mountain ultra-marathon runners. The communication and application of science for non-scientists and the general public is a recent addition to his activities; he bridges the gap between science and public understanding through a science-focused podcast.


2000, Ph.D. Exercise Physiology, Florida State University, Tallahassee, FL
1996, M.S. Exercise Science and Health Promotion, George Mason University, Arlington, VA
1994, B.S. Education, Sports Medicine, University of Virginia, Charlottesville, VA

2001-2004, Postdoctoral Fellow, Yale University School of Medicine, Training Program in Cellular & Molecular Neurobiology & Postdoctoral Associate, John B. Pierce Laboratory (Mentor: Steven Segal, Ph.D), Neurovascular interactions and microvascular blood flow control.

Selected Publications

Rhodehouse BC, Mayo JN, Beard RS Jr, Chen CH, Bearden SE. Opening of the Blood-Brain Barrier before Cerebral Pathology in Mild Hyperhomocysteinemia. PLoS One. 2013 May 16;8(5):e63951. doi: 10.1371/journal.pone.0063951. Print 2013. PMID: 23696861

Beard RS, Reynolds JJ, Bearden SE. Hyperhomocysteinemia Increases Permeability Of The Blood-Brain Barrier By NMDA Receptor-Dependent Regulation Of Adherens And Tight Junctions. Blood, 118(7):2007-2014, 2011. PMID: 21705496
First studies to elucidate the relation between HHcy and the blood-brain barrier transporters for amyloid beta.

Cheuvront S.N., S.E.Bearden, R.W. Kenefick, B.R. Ely, D.W. Degroot, M.N. Sawka, S.J. Montain. A simple and valid method to determine thermoregulatory sweating threshold and sensitivity. Journal of Applied Physiology, 107(1):69-75, 2009. PMID: 19423839

Bearden, S.E. Advancing age produces sex differences in vasomotor kinetics during and after skeletal muscle contraction. American Journal of Physiology: Regulatory, Integrative and Comparative Physiology, 293(3):R1274-R1279, 2007. PMID: 17626125

Bearden, S.E. Effect of aging on the structure and function of skeletal muscle microvascular networks. Microcirculation, 13(4): 305-314, 2006. review article. PMID: 16611595

Bearden, S.E., R.J. Moffatt. VO2 and heart rate kinetics in cycling: transitions from an elevated baseline. Journal of Applied Physiology, 90(6):2081-2087, 2001. PMID: 11356769

Bearden, S.E., R.J. Moffatt. VO2 kinetics and the O2 deficit in heavy exercise. Journal of Applied Physiology, 88: 1407-1412, 2000. PMID: 10749836