GMU Logo

Jeffrey E. Herrick, PhD

Department of Rehabilitation Science

Jeffrey Herrick

Dr. Herrick is an Assistant Professor and the undergraduate program director at the Department of Rehabilitation Science in the College of Health and Human Services. Dr. Herrick is an exercise physiologist with extensive experience in analyzing biological mechanisms underlying cardiopulmonary responses in a wide range of clinical populations. 

Dr. Herrick earned a doctorate in Rehabilitation and Movement Science with a concentration in Cardiopulmonary Physiology at Virginia Commonwealth University in 2009. He also earned a Bachelor's Degree in Psychology from Utica College of Syracuse University in 1994 and a Master's Degree in Exercise Physiology from James Madison University in 2005. Dr. Herrick is a professional member of American College of Sports Medicine and American Academy of Sleep Medicine. 

Dr. Herrick's research and clinical experiences have centered around understanding the effects of physical activity and obesity on metabolic and cardiopulmonary mechanisms that underlie functional performance. Specifically, his work has focused on the distribution of body composition changes following weight loss and the impact on ventilatory efficiency and subjective perceptions of dyspnea during exercise in obese adults. In addition, Dr. Herrick's research has included work with obese adolescents engaged in multi-disciplinary weight loss programing and adults undergoing surgically induced weight loss via gastric bypass surgery. 

Since joining the faculty at George Mason University in 2012, Dr. Herrick established collaborations with researchers from the National Rehabilitation Hospital in Washington D.C., the National Institutes of Health's Clinical Research Center, and Mason's School of Nursing and the Department of Nutrition. Presently, his work aims to understand the mediating effects of sleep fragmentation on mechanisms of skeletal muscle fatigue and daytime symptoms of tiredness. Specifically, he is actively investigating muscle oxygen kinetics at rest and during exercise in adults with obstructive sleep apnea and the relationship with functional performance and fatigability. 

Lastly, Dr. Herrick is an advocate for the benefits of an active lifestyle and its ability to reduce risk factors for a multitude of metabolic and cardiovascular diseases. Dr. Herrick is also a lifelong cyclist.


  • PhD, Rehabilitation and Movement Science 2009, Virginia Commonwealth University
  • MS, Exercise Physiology 2005, James Madison University
  • BA, Psychology 1994, Utica College of Syracuse University