Resistance stretching has been around since the early 1900s. The first standardized method of resistance stretching was called Proprioceptive Nueromuscular Facilitation (PNF) and was originally used to rehab post polio patients and was later adapted for stroke and spinal cord injury rehabilitation. In the 1970s these PNF techniques were adopted by orthopedic therapists to treat musculoskeletal dysfunctions and to work with the more “healthy” population. Since the 70s there have been relatively few advances in the basic approach to resistance stretching. Until now.