Aerobic exercise refers to the physical exercise carried out by the human body under the condition of adequate oxygen supply. That is, in the process of exercise, the oxygen inhaled by the human body is equal to the demand, achieving physiological balance. Simply put, aerobic exercise refers to any rhythmic exercise, which lasts for a long time (about 15 minutes or more) and has moderate or above-average intensity (75% to 80% of the maximum heart rate). Aerobic exercise is a kind of continuous exercise, lasting more than 5 minutes, with spare capacity.

No. 1, swimming

Sports advantages: swimming overcomes the resistance of water rather than gravity, and muscles and joints are not easily damaged, which can effectively protect the knee joint; Exercise in a cold water environment that consumes a lot of calories, combined with dieting, is an exercise with remarkable weight loss effect.

Suitable for people: knee joint injury; Seriously overweight; Lose weight; A body-building group.

Exercise cycle: 3~4 times a week, 30~60 minutes each time.

Second, jogging.

Benefits of exercise: improve the quality of sleep. Through running, the amount of blood supply and oxygen supply to the brain can be increased by 20%, so the quality of sleep at night will also be improved; "Breathing" effect, in the process of running, the average vital capacity increases from 5.8 liters to 6.2 liters, and at the same time, the oxygen carrying capacity in the blood will also increase greatly; Protecting the heart, heartbeat, blood pressure and the elasticity of blood vessel wall will also increase; Decompression and jogging can inhibit the secretion of adrenaline and cortisol, two hormones that cause tension, and release relaxing substances.

Suitable for people: people who want to lose weight and need to relieve stress, sub-health and prevent cardiovascular diseases.

Exercise cycle: 3~4 times a week, 40~60 minutes each time.

Third, bicycles.

Benefits of exercise: preventing brain aging and improving the sensitivity of nervous system; Improve heart and lung function, exercise lower limb muscle strength and enhance overall endurance. Cycling has the same effect on visceral endurance exercise as swimming and running. Bicycle can also lose weight, which is a periodic aerobic exercise and consumes more calories. It has a good exercise rehabilitation effect on cervical spondylosis and lumbar disc herniation.

Suitable for people: knee joint injury, serious overweight, cervical spondylosis, lumbar disc herniation.

Exercise cycle: 3~4 times a week, 40~60 minutes each time.