Dr. Braxton Linder

Assistant Professor

Education

• Postdoctoral Fellow; School of Public Health; Indiana University (06/2024 – 08/2026)
• Ph.D. Kinesiology; Department of Kinesiology; Auburn University (08/2020 – 05/2024)
• M.S. Kinesiology; Department of Kinesiology; University of Alabama at Birmingham (08/2018 – 07/2020)
• B.S. Applied Exercise Physiology; Kinesiology Department; University of North Alabama (08/2014 – 07/2020)

Courses Taught

• 22-332: Physiology of Exercise
• 22-532: Exercise Testing, Prescription, and Analysis of Cardiac Function
• 22-536: Mechanical Analysis of Sport
• Online Professional Wellness

Academic Interests

• Cardiovascular Health, Disease, and Performance
• Research Methodology and Applied Statistics
• Kidney Physiology
• Immunology
• Nutrition
• Aging

Scholarly Activity

Selected Manuscripts:

• Zachary J. McKenna, Whitley C. Atkins, Matthew C. Babcock, Gregory J. Grosicki, Braxton A. Linder, Brendon P. McDermott, Austin T. Robinson. Kidney injury risk during prolonged endurance running: lessons from the field. J Appl Physiol (1685). 2026 Jan 30.
• Braxton A. Linder, Nina L. Stute, Soolim Jeong, Omar B. El-Kurd, Joseph D. Vondrasek, Andrew V. Pasternak IV, Zachary J. Schlader, James R. Bagley, Matthew C. Babcock, Joseph C. Watso, Gregory J. Grosicki, Austin T. Robinson. Hypohydration Augments the Acute Increase in Urinary Biomarkers of Kidney Injury Following the 100-mile Western States Endurance Run. J Appl Physiol (1985). 2025 Oct 20. doi: 10.1152/japplphysiol.00289.2025. PMID: 41115071.
• Braxton A. Linder, Nina L. Stute, Zach J. Hutchison, Alex M. Barnett, Andreas N. Kavazis, Orlando M. Gutierrez, Austin T. Robinson. Acute high-dose MitoQ does not increase urinary kidney injury markers in healthy adults: a randomized crossover trial. Am J Physiol Renal Physiol. 2024 Jan 1;326(1):F135-F142. doi: 10.1152/ajprenal.00186.2023. Epub 2023 Nov 9. PMID: 37942539; PMCID: PMC11198989.
• Braxton A. Linder, Matthew C. Babcock, Kamilla U. Pollin, Joseph C. Watso, Austin T. Robinson, Short-term high dietary salt intake does not influence resting or exercising heart rate variability, but increases MCP-1 concentrations in young adults. Am J Physiol Regul Integr Comp Physiol. 2023 May 1;324(5):R666-R676. doi: 10.1152/ajpregu.00240.2022. Epub 2023 Mar 20. PubMed PMCID: 10110701
• Tiago J. Costa, Braxton A. Linder, Seth Hester, Milene Fontes, Laena Pernomian, Camilla F Wenceslau, Austin T Robinson, Cameron G McCarthy. The janus face of ketone bodies in hypertension. J Hypertens. 2022 Nov 1;40(11):2111-2119. doi: 10.1097/HJH.0000000000003243. Epub 2022 Aug 8. Review. PMCID: PMC9733433

Selected Invited Presentations:

• The effects of a 100.1 mile footrace on renal blood flow and kidney injury biomarkers. American Physiological Summit. Baltimore, MD. April 24-27, 2025.
• The Effects of High Dietary Salt and Strategies to Improve Vascular Health. Indiana University School of Public Health Graduate Nutrition Seminar. Bloomington, IN. February 26, 2025.
• Racial disparities in adverse childhood experiences, and blood pressure during sympathoexcitation, in young adults. Integrative Physiology of Exercise, State College, PA. November 20-22, 2024.
• The Dark Side of Endurance Running: Exploring the Link Between Endurance Running and Acute Kidney Injury. Western States Medical Research Conference. Olympic Valley, CA. June 22, 2023.

Selected Conference Presentations:

• Braxton A. Linder, Nina L. Stute, Soolim Jeong, Elizabeth Q. Hulsey, Sofia O. Sanchez, Jianzhong Shen, Austin T. Robinson, Allison E. Norlander. High salt and ketone supplementation alter terminal effector T cell phenotypes in apparently healthy adults. American Physiological Summit. Minneapolis, MN. April 23-26, 2026.
• Braxton A. Linder, Nina L. Stute, Soolim Jeong, Elizabeth Quinn Hulsey, Meral N. Culver, Sofia O. Sanchez, Jianzhong Shen, Austin T. Robinson, Allison E. Norlander. Ketone supplementation ameliorates high dietary salt-induced tumor necrosis factor-α secretion but not phenotypic shifts in myeloid cells in apparently healthy adults. American Heart Association Hypertension Scientific Sessions 2025. Baltimore, MD. September 4-7,2025.
• Braxton A. Linder, Nina L. Stute, Soolim Jeong, Omar B. El-Kurd, Joseph D. Vondrasek, Andrew V. Pasternak IV, Zachary J. Schlader, James R. Bagley, Matthew C. Babcock, Joseph C. Watso, Gregory J. Grosicki, Austin T. Robinson. Urinary hydration biomarkers, but not renal blood velocity, are impacted by a 161-km ultra-endurance footrace. American Physiological Summit. Long Beach, CA. April 2024
• Braxton A. Linder, Zach J. Hutchison, Alex M. Barnett, McKenna A. Tharpe, Meral N. Culver, Soolim Jeong, Olivia I. Nichols, Thomas E. Fuller-Rowell, Austin T. Robinson. Neighborhood socioeconomic deprivation is not an independent predictor of cardiovascular reactivity during static exercise in young adults. Translational Science 2023. Washington D.C. April 18-20,2023 *This abstract was awarded Blue Ribbon Status by the Association for Clinical and Translational Science
• Braxton A. Linder, Zach J. Hutchison, Alex M. Barnett, McKenna A. Tharpe, Meral N. Culver, Soolim Jeong, Olivia I. Nichols, Joseph C. Watso, Thomas E. Fuller-Rowell, Austin T. Robinson. Hydration status mediates racial differences in circulating copeptin among young adults. American Physiology Summit. Long Beach, CA. April 20-23, 2023 *This abstract was awarded the Water & Electrolyte Homeostasis Section Research Recognition Award by the American Physiological Society
• Braxton A. Linder, Matthew C. Babcock, Joseph C. Watso, Austin T. Robinson. High Salt-Induced Elevations in MCP-1 and Blood Pressure Reactivity are not Correlated in Young Adults. Southeast American College of Sports Medicine. Greenville, SC. February 23-26, 2023. *This abstract was accepted into the Doctoral Student Presentation Competition at the Southeastern College of Sports Medicine conference.

Other Professional Experiences

• American Physiological Society Trainee Advocacy Committee Member
• American Physiology Member
• American College of Sports Medicine Member
• American Heart Association Member
• Association for American Immunologists Member