#411 The Lost Training Files: Sharing In-House Research That I Conducted From 2000 - 2012!
Joe DeFranco's Industrial Strength Show
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How to Jump Higher Than 25 Inches
"I tested over the course of about one month after learning this, I tested 33 athletes ranging from high school to pro," he says. "And looking through every single one of them jumped over 25 inches." The increase in height ranged from a half inch to two and a half inches.
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