John Kowalchuk, PhD

John Kowalchuk

Professor Emeritus & Adjunct Research Professor


  • PhD (McMaster)
  • BSc, MSc (Waterloo)

Academic Appointments

  • Department of Physiology and Pharmacology

Supervising Graduate Students

  • No

Research Interests

  • Integrative human physiology
  • Exercise metabolism
  • Cardiovascular, metabolic and respiratory adjustments and their control during exercise
  • Aging and cardiovascular and metabolic responses to exercise

Additional Information

Recent Publications

  • Keir DA, Murias JM, Paterson DH & Kowalchuk JM. (2014). Breath-by-breath VO2p  kinetics: effect of data processing on confidence in estimating model parameters.  Experimental Physiology, 99, 1511-1522.
  • Keir DA, Nederveen JP, Paterson DH & Kowalchuk JM. (2014). Pulmonary O2 uptake kinetics during moderate-intensity exercise transitions initiated from low versus elevated metabolic rates: insights from manipulations in cadence.  European Journal of Applied Physiology, 114, 2655-2665. 
  • Spencer MD, Amano T, Kondo N, Kowalchuk JM & Koga S. (2014). Muscle O2 extraction reserve during intense cycling is site-specific.  Journal of Applied Physiology, 117, 1199-1206.
  • Raper JA, Love LK, Paterson DH, Peters SJ, Heigenhauser GJF & Kowalchuk JM. (2014). The effect of high fat and high carbohydrate diets on pulmonary O2 uptake kinetics during the transition to moderate-intensity exercise.  Journal of Applied Physiology, 117, 1371-1379.
  • Grey TM, Spencer MD, Belfry GR, Kowalchuk JM, Paterson DH & Murias JM. (2015).  Effects of age and long-term endurance training on VO2 kinetics.  Medicine and Science in Sports & Exercise, 47(2): 289-298, {PMID: 24870579} [doi: 10.1249/MSS.0000000000000398]
  • Adami A, Koga S, Kondo N, Cannon DT, Kowalchuk JM, Amano T & Rossiter HB. (2015). Changes in whole tissue heme concentration dissociates muscle deoxygenation from muscle oxygen extraction during passive head-up tilt.  Journal of Applied Physiology, 118, 1091-1099.

Research Affiliations

  • Canadian Center for Activity and Aging

Teaching Areas (not courses)

  • Exercise Physiology
  • Exercise Biochemistry/Metabolism