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Christopher Hearon, Ph.D.

Christopher Hearon, Ph.D.

Titles and Appointments

Assistant Professor

School
School of Health Professions
Department
Applied Clinical Research
  • Biography

    Dr. Hearon is an Assistant Professor in the Department of Applied Clinical Research and the Institute for Exercise and Environmental Medicine at UT Southwestern Medical Center. He was the recipient of a National Research Service Award (NRSA) from the National Institutes of Health (NIH, 2017-2020), and in 2020 received a Pathway to Independence Award (NIH; K99/R00) to investigate the mechanisms of vascular and autonomic dysfunction in patients with obesity and hypertension. Other research interests include the regulation of oxygen transport and utilization in environmental extremes (high altitude, simulated space flight) and clinical conditions (heart failure).

  • Education
    Graduate School
    Colorado State University (2024)
  • Research Interest
    • Autonomic physiology
    • Cardiovascular ageing
    • Cardiovascular physiology
    • Environmental extremes (hypoxia, space flight)
    • Heart failure
    • Hypertension
  • Publications
    Regional and systemic adipose mass and peripheral conduit artery function
    Wakeham DJ, Beckman BE, Mashayekhi M, Luther JM, Garner EM, Perkins B, Gottlieb J, Niswender K, Hearon CM, Brown NJ, Beckman JA Diabetes Research and Clinical Practice 2025 Sep 227
    Impaired exercise hemodynamic responses in patients with HFpEF without a sympathetic vasoconstrictor reserve
    Kissell CE, Skow RJ, Wakeham DJ, Washio T, Manferdelli G, Samels M, Fu Q, Haykowsky MJ, Brazile TL, MacNamara JP, Sarma S, Levine BD, Fadel PJ, Hearon CM Autonomic Neuroscience: Basic and Clinical 2025 Aug 260
    Heart-Lung Interactions in HFpEF: Dynamic Hyperinflation and Exercise PCWP
    Leahy MG, Wakeham DJ, MacNamara JP, Brazile T, Abulimiti A, Hearon CM, Samels M, Tomlinson AR, Balmain BN, Babb TG, Levine BD, Sarma S JACC: Heart Failure 2025 Aug 13
    A change in tone on the change in tone during exercise: the growing story of functional sympatholysis in humans
    Kirby BS, Hearon CM American Journal of Physiology - Regulatory Integrative and Comparative Physiology 2025 Jul 329 R180-R181
    Effects of Year Long Aerobic Exercise on Left Atrial Size in Patients With Left Ventricular Hypertrophy
    Kyrouac D, Talbot N, MacNamara J, Howden E, Hieda M, Hearon C, Brazile T, Levine B, Sarma S American Journal of Cardiology 2025 Jun 244 3-8
    Functional sympatholysis of neuropeptide Y-mediated vasoconstriction in humans
    Wakeham DJ, Hissen SL, MacNamara JP, Davis SL, Fadel PJ, Levine BD, Hearon CM Journal of Physiology 2025 Jun 603 3329-3340
    Endogenous muscarinic acetylcholine receptor signaling blunts a1-adrenergic vasoconstriction during higher-intensity handgrip exercise in humans
    Terwoord JD, Dinenno FA, Richards JC, Hearon CM American Journal of Physiology - Regulatory Integrative and Comparative Physiology 2025 Jun 328 R619-R627
    Maintained sympathetic reactivity but blunted pressor response to static handgrip exercise in heart failure with preserved ejection fraction
    Washio T, Takeda R, Hissen SL, Akins JD, D’Souza AW, Wakeham DJ, Brazile T, Lutz K, Hearon CM, MacNamara JP, Sarma S, Levine BD, Fadel PJ, Fu Q Clinical Autonomic Research 2025 Jun 35 487-500
    Heart Failure in Zero Gravity-External Constraint and Cardiac Hemodynamics
    Macnamara JP, Hearon CM, Manferdelli G, Shah AM, Tayon KG, Pandey A, Sarma S, Levine BD JAMA Cardiology 2025 Jan 10 98-100
    Circumferential strain and strain rates of the descending aorta as novel measures of aortic stiffness and wall mechanics from standard cardiac MRI
    Wakeham DJ, Zamani SK, Oneglia AP, Howrey MM, Majeed S, Brazile TL, Beckman JA, MacNamara JP, Haykowsky MJ, Zaha VG, Levine BD, Hearon CM, Sarma S, Nelson MD Experimental Physiology 2025
  • Honors & Awards
    • New Investigator Award, Neural Control & Autonomic Regulation Section of the American Physiological Society
      (2024)
    • Research Recognition Award, UT Southwestern School of Health Professions
      (2024)
  • Professional Associations/Affiliations
    • American College of Sports Medicine
    • American Heart Association
    • American Physiological Society
    • Wilderness Medical Society