Thread: Redsoxfan15 Articles and books to improve Training Performance
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Old 06-10-2008, 07:57 PM
basketballvertical basketballvertical is offline
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Default Re: Redsoxfan15 Articles and books to improve Training Performance
no offense but where do you get some of your facts? It can help your speed and vertical, but nowhere near 3-6" or .2-.4 seconds.
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