William Byrnes
Associate Professor Emeritus
Integrative Physiology

Office: Carlson 201A
Fax: 303-492-4009 

Research Interests

  • The acute and chronic physiological adaptations to exercise-induced muscle injury, to resistance exercise, and to exercise in hyper/hypobaric environments.
  • Applied Exercise Science Laboratory.


  • 1968-72, B.S., Manhanttan College, Riverdale, NY.
  • 1973-73, M.A., Appalachian State University, Boone, NC.
  • 1973-78, Ph.D., University of Wisconsin, Madison, WI.

Professional Experience

  • 1979-1981, Assistant Research Physiologist, Institute of Environmental Stress, University of California, Santa Barbara, CA.
  • 1981-1983, Assistant Professor, Department of Physical Education, University of Colorado, Boulder, CO.
  • 1983-1985, Jerry D. Brentham Research Professor in Muscular Dynamics, Department of Exercise Science, University of Massachusetts, Amherst, MA.
  • 1985-1989, Assistant Professor, Department of Kinesiology, University of Colorado, Boulder, CO.
  • 1989-2003, Associate Professor, Department of Kinesiology & Applied Physiology, University of Colorado, Boulder, CO.
  • 1996-Present, Adjunct Faculty, Center for Creative Leadership, Colorado Springs, CO
  • 2003-Present, Associate Professor, Department of Integrative Physiology, University of Colorado, Boulder, CO.

Honors and Awards

  • 1988, President, Rocky Mountain Chapter of the American College of Sports Medicine.
  • 1995, Leadership and Service Award, Rocky Mountain Chapter of the American College of Sports Medicine.
  • 1999-2002 Elected Member of Board of Trustees of the American College of Sports Medicine
  • 1999-2002 Elected Chair of the American College of Sports Medicine Regional Chapters Committee
  • 1998-2001 Appointed Member of the American College of Sports Medicine Budget and Finance Committee
  • 1998-2003 Chair of the Human Research Committee for the Sports Science and Technology Division of the United States Olympic Committee

Recent Publications

  • Kane LA, Ryan BJ, Schmidt WF, Byrnes WC. Acute, low-dose CO inhalation does not alter energy expenditure during submaximal exercise. International Journal of Sports Medicine 37.01: 19-24, 2016.
  • Peterman JE, Lim AC, Ignatz RI, Edwards AG, Byrnes WC. Field-Measured Drag Area is a Key Correlate of Level Cycling Time Trial Performance. PeerJ 3: e1144, 2015.
  • Peterman JE, Morris KL, Kram R, Byrnes WC. Pedelecs as a Physically Active Transportation Mode. European Journal of Applied Physiology 116: 1565-73, 2016.
  • Peterman JE, Wright Jr. KP, Melanson EL, Kram R, Byrnes WC. Motor-driven (passive) cycling: a potential physical inactivity countermeasure? Medicine and Science in Sports and Exercise 48: 1821-1828, 2016.
  • Ryan BJ, Goodrich JG, Schmidt W, Kane LA, Byrnes WC. Ten Days of Intermittent, Low-dose Carbon Monoxide Inhalation does not significantly alter Hemoglobin Mass, Aerobic Performance Predictors, or Peak-power Exercise Tolerance. International Journal of Sports Medicine 2016. DOI 10.1055/s-0042-108197.
  • Ryan BJ, Wachsmuth NB, Schmidt WF, Byrnes WC, Julian CG, Lovering AT, Subudhi AW, Roach RC. AltitudeOmics: rapid hemoglobin mass alterations with early acclimatization to and de-acclimatization from 5260 m in healthy humans. PLoS ONE 9: e108788, 2014.
  • Welsh MC, Allen DL, Batliner ME, Byrnes WC. Revisiting the Force-Joint Angle Relationship After Eccentric Exercise. The Journal of Strength & Conditioning Research 29.12: 3284-3291, 2015.
  • Welsh MC, Allen DL, Byrnes WC. Plasma matrix metalloproteinase-9 response to downhill running in humans. International journal of sports medicine 35: 363-370, 2014.