ISSA Founders, Advisors, Course and Continuing Education Authors

The International Sports Sciences Association's advisors and authors are some of the most prestigious and respected names in the fitness industry. The years of scientific research they have conducted, the hundreds of professional publications, and college text books they have authored, is the basis of virtually all exercise, physiology, nutrition, and fitness courses taught around the world.

While others talk about their "experts" we urge you to see for yourself and take an in depth look at their biographies, publications, and accomplishments.

We're confident you'll see why ISSA is truly the World Leader in Fitness Education

Dr. Sal Arria Frederick C. Hatfield Charles Staley Patrick S. Gamboa Dr. Jack Barnathan Karl Knopf Bill Pearl Warren Potash Dr. Thomas Fahey Jane Frederick Dr. Gordon

E.J. 'Doc' Kreis Robert Filer Lt. Col. Taylor John Schaeffer John DeFendis John Berardi Kim Dolan Leto LaReine Chabut

Karl Knopf, Ed.D ISSA Director of Fitness for the Physically Limited

Dr. Knopf is the co-author of the ISSA Senior Fitness Certification course and the ISSA Exercise / Fitness Therapist Certification course. He began his teaching career at Foothill College in Los Altos, California in 1976 as the coordinator of Adapted Physical Education. The program has evolved into the largest in California. Dr. Knopf has been instrumental in developing programs for mature adults, persons with arthritis and chronic pain, persons with disabilities, and the developmentally delayed. He has written three books: Water Workouts, Fitness Over Fifty, and his most recent, Senior Fitness for the ISSA. Dr. Knopf has been writing, consulting and speaking professionally throughout his career and is a frequent guest on television and radio talk shows. Since 1986 he has been a consultant with Stanford School of Medicine for older adult research projects and is a recent recipient of the respected NISOD, Excellence in Teaching Award. The ISSA is proud to have Dr. Knopf join our growing staff and lend his expertise in the field of Adaptive Physical Education and Older Adult Fitness.