Starting Strength, 3rd Edition - Mark Rippetoe [200]
Weight gain occurs the same way strength gains occur – fast at first, then more slowly as training progresses. It is quite possible for genetically favored individuals – for example, a broad-shouldered, motivated 5'10 kid, weighing 140 pounds – to gain as much as 60 pounds in a year of good steady training, good diet, and milk. This is actually not that unusual a result for this type of trainee, although when it occurs, there will always be talk of steroids, because this is human nature – as a general rule, anybody stronger than you is taking steroids. What is unusual is finding a genetically gifted athlete who will actually do the program – all of it. It is far more common to see 20-pound increases in bodyweight over a four-month period, with only a very few diligent trainees doing much better. But most guys who will eat even a little better than they did before will gain several pounds the first few weeks.
Fat guys (not used here disparagingly) see a different result entirely, as their bodyweight doesn’t change much for the first few months. What they notice is looser pants in the waist; legs and hips staying about the same; shirts that are much tighter in the chest, arms, and neck; and faster strength increases compared to their skinny buddies. Their body composition changes while their bodyweight stays close to the same, the result of a loss in bodyfat due to their increasing muscle mass.
So if you do the program as written, and you are a novice male between the ages of 18 and 35 with a starting bodyweight of 160–175 pounds, the first five or six squat workouts will see the work sets going up 10 pounds every time. If your first day is 115 x 5 x 3 sets across, then 165 x 5 x 3 will be the sixth workout. A novice in this demographic who is eating and resting correctly and who is otherwise healthy will be able to do this. Eating correctly may mean 6000 calories/day, including a gallon of whole milk, or it may mean 3500 calories/day on a Paleo-type, lower-carb, no-dairy diet, depending on your initial body composition. If this or its equivalent training result did not happen, you’re not doing the program. During this period of time, it is common to gain 5–10 pounds of bodyweight if you are underweight, or to stay about the same if you are in need of bodyfat loss. In this demographic, you’re too fat if you’re over 20% bodyfat and underweight if you’re less than 10%. Bodyfat under about 10% is not usually the level that a performance athlete carries, and growing a significant amount of muscle mass will entail an increase in bodyfat. A bodyfat level over about 20% means that you’re headed in the direction of carrying around more than is required for an anabolic environment and more than is efficient for moving either the bar or an opponent.
It is potentially slipshod to assign an underweight or overweight designation on the basis of bodyfat, but it usually works pretty well, and in the absence of currently non-existent height/weight/bodyfat tables that take all three variables into account, it’s about the best we can do. It is true that many people who want or need to gain bodyweight are also in love with their visible abs, and will not appreciate the advice