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Momentum and hip rotation.

Posted by: Jack Mankin (MrBatspeed@aol.com) on Mon Oct 1 12:59:47 2007

Hi All

In a Sept. post http://www.batspeed.com/messageboard/97373.html, I stated “The third principle I teach is – the linear movement of the body during the stride is more for timing and not a major factor in generating hip and shoulder rotation. In most high level swings, hip and shoulder rotation is induced from muscle contraction in the pelvic and torso regions plus the extension of the lead-leg driving the lead-hip rearward.

I realize these principles are at odds with the teaching of many batting authorities and I would be happy to discuss them with those that have questions.”

I basically stated that in the swing of many of the best hitters, the linear momentum attained during their stride was not a contributing factor in generating their hip rotation. Since rotation induced from linear momentum is the cornerstone of the teaching of many batting authorities (Lau Sr, Yeager, and etc.), I expected opposition to my position. However, no opposition was forthcoming which led me to wonder if everyone might agree me. I doubt if that is the case. – Your thoughts would be appreciated.

Jack Mankin


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