Jack Nirenstein

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Name: Jack Nirenstein
Email: jacknirenstein@aol.com
Member Since: Jul 4, 2008
Status Level: Rookie (30 points)
Occupation: Coach
My Homepage: http://running-justundoit.com
About Me: Discovered and developed the Jack Nirenstein Gravity Running Technique 30 years. Everyone learned it subconsciously as a baby. They fell towards their parents' arms. They still fall as adults because gravity is the only force that can move you forward for all speeds. Standing on a leg that is slanted behind gets a pull by gravity. The leg can only push the body straight up from underneath. More information and videos. http://running-justundoit.com
My Activities: Action Sports, Fitness, Running, Tennis
Why Im Here: I am a coach or manager

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