H.I.T. training was often an ignored training technique, in its initial times. However, Dorian Yates implemented it to win six Olympia titles during the 90's. Two of the most densely muscular and most powerful muscle builders of all time achieved their achievements. Mike Mentzer developed and used this most popular form of H.I.T. training to date. The key principles of High Intensity Training (H.I.T.) are that exercise sessions need to be brief, infrequent and strong. Workouts undertaken with a high level of effort or high intensity is believed to stimulate the body to improve in muscularity and size. There is a great stress on rest and recovery more so than in any other training technique out there. In the body weight, a huge level of strength for example is carrying out an exercise to the point of muscular failure. After reaching muscular failure you increase the intensity even further by performing three to five post fatigue repetitions. Growing body weight, decreasing reps, a