Andrew Coggan, PhD, is renowned in the cycling community for his research on power and exercise physiology. His research provided the foundation for the TrainingPeaks WKO+ software, which he co-developed with Hunter Allen. Coggan is a research associate at Washington University School of Medicine. He holds a Ph.D. in Exercise Physiology from the University of Texas and an M.S. in Human Bioenergetics form Ball State University. He has authored countless articles in medical studies and worked with USA Cycling to develop expert coaching clinics. Coggan lives outside St. Louis, Missouri.