Weight training is a form of exercise for developing the
strength and size of skeletal muscles. It is a common type of
resistance training, which is one form of strength training.
Properly performed, weight training can provide significant
functional benefits and improvement in overall health and well-
being. In one common training method, the technique involves
lifting progressively increasing amounts of weight, and uses a
variety of exercises and types of equipment to target specific
muscle groups. Weight training is primarily an anaerobic
activity, although some proponents have adapted it to provide
the benefits of aerobic exercise. Weight training differs from
bodybuilding, weightlifting, and powerlifting, which are sports
rather than forms of exercise. Weight training, however, is
often part of their training regimen. A repetition (or "rep") is
the act of lifting and lowering a weight once in a controlled
manner. A "set" consists of several repetitions performed one
after another with no break between the