When he's not lifting heavy weights, he's training top-level athletes or contributing to some of the top fitness magazines and websites across the world. Follow Tony on Twitter @TonyGentilcore1 or visit his personal website at TonyGentilcore.com. Tony Gentilcore is a certified personal trainer (CSCS), writer and co-founder of Cressey Sports Performance. When he's not lifting heavy weights, he's training top-level athletes or contributing to some of the top fitness magazines and websites across the world. Follow Tony on Twitter @TonyGentilcore1 or visit his personal website at TonyGentilcore.com. Share this article