Dr. Knopf has worked in almost every aspect of the fitness industry, from trainer to therapist to consultant at major universities as well as for the State of California. He has been the director of the Adaptive Fitness Therapy Program at Foothill College (training fitness professionals to work with people with chronic health issues) for over 10 years and has taught adaptive PE there for over 30 years. Dr. Knopf was featured in the Wall Street Journal, was on the cover of ACTIVE magazine, and is a frequent guest on various radio programs.
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Books by Karl Knopf
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