Proprioceptive Neuromuscular Facilitation (PNF) was developed at the Kabat – Kaiser Institute, later renamed Kaiser Foundation Rehabilitation Center, over a period of 5 years, 1946 – 1951, by Herman Kabat, MD, a clinical neurophysiologist, and Physical Therapist, Margaret “Maggie” Knott. Originally PNF was developed for patients with neurological deficits, especially Poliomyelitis. Later, the PNF concept was expanded into a treatment philosophy and approach which could be used for musculoskeletal as well as neurological deficits.
PNF was taught at the Kaiser Vallejo Hospital to therapists worldwide through post – graduate courses. These therapists learned PNF in Vallejo and then shared their knowledge with colleagues in their respective countries.