Aug 172011
 
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The mechanics of throwing a baseball and a racquetball swing are very similar. Tim Lincecum can pitch at 97 mph because he has an efficient delivery and a very high hip rotation speed.

Due to the hidden force multiplier in your hip rotation speed, any increase in hip speed multiplies your racquet swing speed by a factor of 15. So the quickest way to increase the speed of your swing is to increase the strength and rotation speed of your hips.

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