Do Cristiano Ronaldo, of team Real Madrid, and his Athletic Trainer know something you should know about building strength, speed, agility, and improving athletic performance? You bet they do!

Like so many athletes and their trainers, they are both strong advocates of the Core X System Program.

If you want to train yourself and your clients like so many successful athletes train and improve performance, go to to learn more and to see who uses the Core X System Program. Get started now!