Archive for November, 2011

I recently attended the annual track and field summit that included sessions on sprints, hurdles, throws and jumps. I especially enjoyed the seminars by Dr. Ralph Mann on sprint mechanics. Here are some of the main points that I picked up. Ralph emphasizes “front side” mechanics rather than “back side” mechanics. It is a...

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Back in 2000 my colleagues and I wrote a paper where we showed that an increase in the X-Factor at the beginning of the downswing seemed to be more important that the X-Factor itself.  We called this the “X-Factor Stretch”. Jim McLean is well known for his teaching of the X-Factor and has also...

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