After serving in the Army as a helicopter crew chief, Frank Underwood completed his undergraduate degree with a major in Biology from Central Missouri State University. He then completed the U.S. Army-Baylor University Graduate Program in Physical Therapy. After 6 years as a clinician in Kansas and Berlin, Germany, Dr. Underwood was an instructor in the physical therapy technician program at Fort Sam Houston, Texas. His next assignment lead him to become a doctoral student at the University of Missouri, where he earned a PhD in exercise physiology. After teaching for 6 years in the U.S. Army-Baylor University Graduate Program in Physical Therapy, Dr. Underwood retired from the Army, and taught at the University of Evansville for 17 years. He has been an emeritus professor of physical therapy at the University of Evansville since 2014, and continues to teach as an adjunct professor for two universities. He has taught interpretation of medical literature to both practicing therapists and students since 1991 and has been a board-certified specialist in clinical electrophysiologic physical therapy since 2003.