This can be accomplished by fast walking, jogging, riding a bicycle, swimming, playing basketball, or any of a number of other methods of exertion. The exact method is not that important as long as one's heart beat is raised and one keeps that rate up for 20 minutes to a half hour. The important thing other than that is that whatever method of exercise one chooses should not cause any damage to any part of the body. Since many types of aerobic exercise consist of doing the same movements over and over again repetitively, if those movements are even just a little bit damaging to the joints and tendons, a host of small injuries may accumulate to result in a large problem. Therefore, one should chose an aerobic activity which will not result in cumulative stress injuries, or one should vary the type of aerobic activity so as not to always stress the same body parts.
Aerobic exercise results in circulating the qi , blood, and body fluids.
It strengthens the heart and lungs and reduces the negative effects of stress and emotional strain. Young and middle-aged people should do some kind of aerobic activity at least three times per week. Resistance Training Resistance training refers to lifting or pushing against something heavy or difficult to move. Resistance training builds physical strength. It also converts fat into muscle.