The goal of aerobic exercise is to increase cardiorespiratory endurance. During exercise, a large amount of energy and oxygen is required due to muscle contraction, and the demand for oxygen increases, and the number of contractions of the heart, the amount of blood sent out each time, the number of breaths, and the degree of contraction of the lungs increase.
So when exercise continues and muscles contract for a long time, the heart and lungs must work hard to supply oxygen to the muscles and transport rubbish from the muscles. And this constant demand can improve cardiorespiratory endurance. When cardiorespiratory endurance increases, the body can engage in longer or more intense exercise.And less prone to fatigue.
Low-intensity, long-term exercise is basically aerobic exercise, such as walking, jogging, long-distance slow swimming, cycling, dancing, etc. Aerobic exercise can effectively exercise the heart, lungs and other organs, can improve cardiovascular and lung function. In the process of using oxygen,There is a considerable time difference,this time difference determines that vigorous, short periods of exercise become anaerobic exercise.When you exercise long enough, oxygen has been dissolved into the cells, and the glucose in the body is fully "burned" to convert into new energy Such exercise is aerobic exercise.