Overview: Comprehensive, covering all relevant aspects of flexibility.Summarizes the basic science underlying the physiology of stretching.Synthesizes the important literature and offers a concept of how tissueIn 1964, at the beginning of my PhD studies at Southern Illinois University, I was first introduced to the theory and practice of proprioceptive neuro- muscular facilitation (PNF). One specific application, reversal of antago- nists, particularly intrigued me, and served as the focus of not only my dissertation, but also numerous research projects, presentations, and pub- lications over
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