25 FEB

Diet and nutrition

Diet has always been as important, if not more, as weight-training for bodybuilders. However, in his book Heavy Duty Nutrition, Mentzer demonstrated that nutrition for athletes did not need to be nearly as extreme as the bodybuilding industry would lead one to believe. His recommended diets were well balanced, and he espoused eating from all four food groups, totaling four servings each of high-quality grains and fruits, and two each of dairy and protein daily, all year-round.^[4]

Mentzer believed that Carbohydrates should make up the bulk of the caloric intake, 50-60%, rather than protein as preferred by others. Mentzer's reasoning was simple: to build 10 pounds of muscle in a year, a total of 6000 extra calories needed to be ingested throughout the year, because one pound of muscle contains 600 calories. That averages 16 extra calories per day, and only four of them needed to be from protein—because muscle is 22% protein, about one quarter.^[4]

[edit]Mentzer's heavy-duty training system

While Mike Mentzer was serving in the US Air Force, he would work 12-hour shifts, and then follow that up with 'marathon workouts', as was the accepted standard in those days. In his first bodybuilding contest, he met the winner, Casey Viator. Mentzer learned that Viator trained in very high intensity (heavy weights for as many repetitions as possible, to total muscle fatigue), for very brief (20–45 minutes per session) and infrequent training sessions. Mentzer also learned that Viator almost exclusively worked out with the relatively new Nautilus machines, created and marketed by Arthur Jones in Deland, Florida. Mentzer and Jones soon met and became friends.^[5]

Jones pioneered the principles of high-intensity training in the late 1960s. He emphasized the need to maintain perfectly strict form, move the weights in a slow and controlled manner, work the muscles to complete failure (positive and negative), and avoid over-training. Casey Viator had seen fantastic results training under the direction of Jones, and Mentzer became very interested in this training philosophy.^[5] Eventually, however, Mentzer concluded that even Jones was not completely applying his own principles, so he began investigating a more full application. He began training clients in a near experimental manner, evaluating the perfect number of repetitions, exercises, and days of rest to achieve maximum benefits.^[2]

For more than ten years, Mentzer's Heavy Duty program involved 7-9 sets per workout on a three day-per-week schedule.^[2] With the advent of "modern bodybuilding" (where bodybuilders became more massive than ever before) by the early 1990s, he ultimately modified that routine until there were fewer working sets, and more days of rest. His first breakthrough became known as the 'Ideal (Principled) Routine', which was a fantastic step in minimal training. Outlined in High-Intensity Training the Mike Mentzer Way, fewer than five working sets were performed each session, and rest was emphasized, necessitating 4–7 days of recovery before the next workout.^[3] According to Mentzer, biologists and physiologists since the nineteenth century have known that hypertrophy is directly related to intensity, not duration, of effort (Mentzer 2003;39). Most bodybuilding and weightlifting authorities do not take into account the severe nature of the stress imposed by heavy, strenuous resistance exercise carried to a point of positive muscular failure.