Expert： Aerobic exercise is the best way to keep fit for a long time.

The main purpose of students’ participation in sports is to keep fit. There are many sports methods. Lany, a teacher in the Department of Physical Education of Chengdu Institute of Physical Education, said that aerobic exercise is the best way to keep fit, and the long-term persistence is effective.

　　　　Aerobic exercise is an exercise that takes aerobic metabolism as the main energy source under the condition of sufficient oxygen supply. The metabolic form is thorough, only carbon dioxide and water are produced, and almost no harmful substances are produced. Long-term persistence can obviously improve cardiopulmonary function, prevent and control "three highs" (hypertension, hyperglycemia and hyperlipidemia), reduce excess fat, improve mental state and promote sleep quality.

　　　　He said that when doing aerobic exercise, if you want to achieve the ideal fitness effect, you must grasp the load. Generally speaking, the load intensity can be judged by the heart rate. When the heart rate is 120 -140 beats/min, the contraction and relaxation of the heart are the most sufficient, and the heart function can be exercised to the maximum extent. In addition, it should be adjusted according to the individual’s specific situation, and people of different ages should choose the appropriate intensity according to the actual situation.

　　　　Fitness is a long-term project, and persistence is the last word. Lany suggested that in terms of frequency, the best fitness effect can be achieved by arranging intermittent exercise 3 -5 times a week.