Tip - Dirty Tricks for Higher Vertical Jumps

Joe DeFranco is one of the country’s most highly sought after performance enhancement specialists. This is due to his reputation throughout the country for producing extraordinary results with his athletes. These results have not come by accident.
Tags: NFL Combine, NFL Combine preparation, football combine, high school football combine, 40 yard dash, vertical jump, speed training, speed enhancement, strength training, NFL draft, performance enhancement, flexibility, sports nutrition, plyometrics, athlete performance