This is the definitive guide to the safe and effective development of the trunk muscles - vital for a healthy back and a crucial component of fitness for a variety of sports. It is based on the author's groundbreaking Functional Load Abdominal Training (FLAT) program, employing cutting-edge core stability techniques to reflect the natural action, balance and leverage of the abdominal muscles. This new edition outlines the most up-to-date developments in abdominal training, and includes in-depth information on anatomy, biomechanics, posture and exercise analysis. Written for instructors, coaches, therapists, sportspeople and fitness enthusiasts alike, Abdominal Training has a proven track record for everyone from competitive athletes to entry-level and post-natal exercisers, the elderly and those who have suffered from back pain.