I have read in several places that strength training to lose fat is no different from strength training to gain muscle. The difference is in your diet. If you eat less calories than you burn, you will lose weight. If you eat more calories than you burn, you will gain weight. Strength training "simply" insures that the weight you lose will be fat, and the weight you gain will be muscle. In either case, the strength training is the same.
The reason for low rep high weight some times and high rep low weight at other times is simply to give you variety in your workout, and keep your body from getting to adapted to one thing - which would otherwise cause any progress to slow down.
Brian.
|