John Tyberg

Emeritus Professor

Cardiac Sciences and Physiology/Pharmacology


Bethel College, St. Paul MN 1960


University of Minnesota, Minneapolis MN 1967


University of Minnesota, Minneapolis MN 1972

Contact information


Office: 403.220.8191


Office : HRIC GAA18

Research and teaching

Research areas

  • Hemodynamics
  • Ventricular function
  • Pericardium
  • Waves
  • Arteries


Dr. Tyberg was born in Wisconsin. He completed his pre-medical studies (B.A. with highest honors; 1960) at Bethel College, St. Paul, and his graduate (Ph.D., Physiology; 1967) and medical (M.D.; 1972) degrees at the University of Minnesota in Minneapolis. He did a post-doctoral research fellowship with Dr. Edmund Sonnenblick at Harvard Medical School. Before coming to the University of Calgary in 1981 he worked at the Cedars-Sinai Medical Center in Los Angeles and the Cardiovascular Research Institute, University of California, San Francisco. He has supervised more than 50 graduate students or post-doctoral research fellows during his career and is listed as an author of more than 190 publications, mostly focused on cardiac mechanics and dynamics, pericardium-mediated ventricular interaction, how changes in venous capacitance modulate cardiac output, and how waves are propagated and reflected in the vasculature.



Howell S, Burrowes LM, Belenkie I, ter Keurs HEDJ, Lei L, Raj SR, Bouwmeester JC, Sheldon RS, Shrive NG, Tyberg JV: Alternative approaches to the assessment of the systemic circulation and left ventricular performance: A proof-of-concept study. Can J Cardiol Open 2019. 1:84-93.
Tyberg JV, Burrowes LM, Shrive NG, Wang JJ: Origin of the forward-going ‘backward’ wave. J Appl Physiol 123: 1406–1407, 2017; First published June 29, 2017; doi: 10.1152/japplphysiol.00350.2017. PMID:28663376
Tyberg JV, Bouwmeester JC, Parker KH, Shrive NG, Wang JJ: The case for the reservoir-wave approach. Int J Cardiol 2014 Mar;172:299-306. doi: 10.1016/j.ijcard.2013.12.178. [Epub ahead of print] PMID: 24485224