Here is a theory of running that is revealed by Jack Nirenstein and is shown in his self produced video that lasts 100 minutes. Jody Hawkins, four time U.S. National Champion runner, is one of many participants seen in this 2002 release experiencing the instruction. You will also see slow motion treadmill running to point out the specifics of the instruction. The theory is how to use gravity as the exerted force and how to use a vaulting process instead of a pushing process. There are also claims of increased relaxation as well as opening circulation and respiration by using this method. The focused muscle group in this video is the quadriceps. More information about this concept can be found in a companion book, Guided Muscles for Winning Sports, and you may order this DVD at Amazon.com.
