Please explain to me what you are referring to when you describe an exercise by using the terminology of a "PNF Pattern." I've always referred PNF to proprioceptive neuromuscular facilitation - is that correct? Thank you!
Thank you so much for your excellent question! Often we think about active/passive stretching techniques when one refers to PNF.
PNF (proprioceptive neuromuscular facilitation) was developed some time ago (about late 1940s) and describes facilitation and facilitation patterns of the nervous system. Proprioceptive refers to stimuli aroused within an individual through the feedback mechanisms of the human body (there are six classes of movement-based proprioceptors). Neuromuscular undoubtedly pertains to the nerves and muscles. Facilitation is the "hastening" of any natural process. PNF patterns are commonly used in a clinical situation and typically involve patterns of human movement through pronation and supination.
If you would like to investigate this area further, you can search info on Dr. Herman Kabat and/or Sister Elizabeth Kenny (who were some of the earliest individuals to work with these patterns).