here are some samples of different people who tried Body for Life and some excepts from the book
Myth: Aerobics is better for shaping up than weigh training.
Fact: To transform your physique, you must train with weights.
Walking around the block or simply climbing a flight of stairs is better than just sitting there doing nothing. But the best form of exercise, for reshaping your body, is weight training.
Through resistance training, you can also significantly increase your metabolic rate-the rate at which your body burns fat. As you may already know, when you gain muscle, your body requires more energy to maintain that new muscle. Fat weight doesn't require any energy at all to maintain- it just sits there. That's why weight training is even superior to aerobic exercise for people who want to lose fat: It addresses the core of the problem- the rate at which your body uses energy.
If you do nothing but aerobic exercise, even if you eat less, your results will not be optimal. Yes, you may lose weight. But your overall shape will stay the same. If you start an aerobic exercise program shaped like a pear, the most likely result is you will wind up looking like a smaller pear- which is fine, if that's what you want. But that's not what I call a transformation.
With weight training, you not only burn fat but you can also change the shape of your body- you can build wider shoulders, so your waist looks more narrow. You can build muscular arms; lean defined abdominal muscles; strong legs; and you become empowered, confident, and strong.
So even though aerobic exercise does help burn fat, when it comes to transforming your body, proper weight training can't be beat.