Original sentence: It is a popular form of resistance training, which is a common form of strength training.It provides functional benefits, often results in a more attractive physique, and may improve overall health and well-being.The technique involves lifting significant weights, and uses a variety of exercises and types of equipment to target specific muscle groups.Though they involve the lifting of weights, they are sports rather than forms of exercise.Weight training is not bodybuilding, weightlifting or powerlifting.Weight training is the most effective technique for developing the strength and size of skeletal muscles.Weight training is usually an anaerobic form of exercise but may also be aerobic when low weights are used
Edited sentence: As well as providing functional benefits, this can result in a more attractive physique and improve overall health and well-being.In its most popular form, weight training is primarily an anaerobic form of exercise.It has become the best-known form of resistance training, which is in turn the best-known form of strength training.The technique involves progressively lifting increasing amounts of weight, and includes a variety of exercises and items of equipment to target specific muscle groups.Weight training can be the most effective technique for developing the strength and size of skeletal muscles.Weight training should not be confused with bodybuilding, weightlifting or powerlifting—even though these also involve the lifting of weights—because they are sports rather than forms of exercise