There exists a common set of principles underlying all athletic performance, and these principles, if observed in unison over time, enable any athlete to mature into an accomplished athlete capable of achieving a lifetime of enjoyment through participation in sports. This book is all about improving athletic performance. Learn how each of the ten athletic principles common to all sports assist top athletes in achieving superior athletic performance. Five special sections provide insight into Swimming, Running, Tennis, Cycling and Skiing. Skills mastered by top performing athletes are presented and explained in accordance with the ten athletic principles underlying The Unified Theory of Sports. Any athlete wishing to improve their own performance will benefit from advice provided. Read this book and you will gain valuable insight required to achieve a lifetime of enjoyment through participation in sports. Jerry Lyons lives and writes in Central Oregon where athletic opportunities abound and an active outdoor lifestyle seems to be a requirement. A father of two, he is often found at the pool, on the ski slopes or cycling in the Cascade Mountains. Cary Leeds was a world class athlete, a fine runner, golfer, swimmer, but his tennis credentials stand out. He was a Yale University tennis star and a Wimbledon semi-finalist with a world ranking. He was an athlete's athlete, a charismatic sportsman everyone wanted to be with. Used Book in Good Condition