This paper discusses the role of exercise in physical health and fitness.

Life lies in exercise, because exercise is good for health, and there is a lot of knowledge about how to exercise. Especially in big cities, the pace of life is tense and the competition is fierce. People are busy with work, study, interpersonal communication and family affairs all day, and the traffic is developed. There are many high-rise buildings, there are cars, subways and light rails when going out, elevators when going upstairs, and it is very common to use vehicles and elevators instead of walking. Many people ignore the importance of exercise in maintaining and promoting health.

As a result, unhealthy factors, sub-health status and various diseases caused by lack of exercise are increasingly apparent. To this end, remind everyone that exercise is very necessary for health. Don't forget to do scientific and proper exercise, which can make us healthy, beautiful, happy and live a long life and stay away from diseases.

Eight reasons why life lies in sports.

(1) Exercise can improve cardiopulmonary function.

(2) Exercise can enhance the function of muscles and bones.

(3) Exercise can improve blood pressure.

(4) Exercise can improve immunity.

(5) Exercise can make your body more fit.

(6) Exercise can strengthen the brain.

(7) Exercise can eliminate fatigue.

(8) Exercise can promote mental health.

Ten functions of sports

(1) Exercise makes you energetic and calmly cope with your daily life and work.

(2) Exercise makes you optimistic, willing to undertake tasks and not picky.

(3) Exercise promotes sleep and is conducive to rest.

(4) Exercise makes you adaptable and can adapt to various changes in various environments.

(5) Exercise improves your immunity and has certain resistance to diseases.

(6) Exercise makes you have a moderate weight, a well-proportioned figure and a harmonious proportion of all parts of your body.

(7) Exercise makes you sensitive.

(8) Exercise makes your limbs flexible and painless.

(9) Exercise makes hair shiny without dandruff.

(10) Exercise makes your muscles and skin elastic and easy to walk.

Exercise helps you to be healthier.

(1) Maximum heart rate: 200 minus your age.

(2) Aerobic exercise: walking, swimming, cycling, jogging, dancing, climbing stairs and playing table tennis.

(3) Strength exercises: push-ups and equipment exercises.

(4) Stretching: practice the flexibility of joints and ligaments, such as yoga and gymnastics.

(5) Energy mastery: moderate-intensity aerobic exercise lasts for half an hour.

Experts scientifically choose sports for you.

(1) The running time for the purpose of exercise should be no less than 5 minutes, otherwise it is not conducive to the improvement of cardiopulmonary function.

(2) Running for the purpose of losing weight and bodybuilding lasts for no less than 20 minutes, with slow speed and even breathing.

Optimum exercise time

(1) From the point of view of medicine and health care, early morning is not the best time for exercise.

(2) The best time to exercise in a day is at night.

(3) The key to exercise is to form a habit and persevere.

(4) The best exercise mode-aerobic exercise.

(5) Walking, jogging, mountain climbing, ballroom dancing, cycling, long-distance swimming, playing Tai Ji Chuan, martial arts and yangko are all aerobic exercises. Among them, the best aerobic exercise is walking.

Aerobic exercise has many benefits.

1. What are the health benefits of aerobic exercise?

(1) Aerobic exercise has a health care effect on heart, lungs and blood vessels.

(2) Aerobic exercise can strengthen muscles and shape the body.

(3) Aerobic exercise has a health care effect on bones.

(4) Aerobic exercise can improve the function of brain and nervous system.

(5) Aerobic exercise helps to expel toxins from the body.

(6) Aerobic exercise can regulate mental state.

The functional "body" that shapes physical beauty can be divided into posture and body shape. Posture, that is, the behavior habits shown in our usual actions, is greatly influenced by acquired factors. Body shape is the shape of our body. Although physical exercise can appropriately improve body shape and appearance, relatively speaking, genetic factors play a decisive role. Good posture is an important factor in forming a person's temperament. The movement requirements and body posture requirements of aerobics practice are basically consistent with the state requirements in our daily life. Therefore, practicing aerobics for a long time can improve the bad physical condition and form a beautiful posture, thus showing good temperament and accomplishment in daily life, giving people a feeling of vigor, health and progress. Aerobics can also shape bodybuilding. Aerobic exercise, especially strength exercises, can strengthen bones and increase muscle circumference, thus making up for congenital body defects and making people well-proportioned and fit. Secondly, aerobic exercise can also eliminate excess fat in the body and body surface, maintain the balance of absorption and consumption, and lose weight and keep fit.

Relieve mental stress and entertain physical and mental functions With the development of the times and the progress of society, people enjoy the comfortable life and various conveniences brought by science and technology, but also bear mental pressure from all sides. Scientific research has proved that exercise can relieve mental stress and prevent various diseases. As a sport, aerobics is famous for its graceful movements, coordination, comprehensive exercise and strong sense of rhythm in music accompaniment, which is a good way to relieve mental stress. In the relaxed and beautiful aerobics, the practitioner's attention is diverted from the annoying things, forgetting the depression and frustration, enjoying the happiness brought by aerobics, and gaining inner peace, thus relieving mental stress and making people have stronger vitality and the best state of mind. In short, as long as the range and amount of exercise are well controlled, aerobics can achieve the purpose of medical care on the basis of preventing injury.

What should we pay attention to when making exercise prescriptions-

Exercise prescription exercise method refers to the method that doctors prescribe the content, amount and matters needing attention of exercise in the form of prescription, so as to guide people to engage in physical exercise scientifically. There are two kinds of exercise prescriptions. One is that sports health care doctors prescribe exercise for exercisers, just like doctors prescribe exercise for patients. The other is that the exerciser gives himself a prescription. Exercise prescription can be divided into therapeutic exercise prescription and preventive exercise prescription according to the physical condition and exercise purpose of the exerciser. Common exercise prescription models include the following basic elements:

1. Diagnostic results and overall evaluation of physical and motor abilities.

2. Determine the content of the exercise, that is, define the methods, means and action requirements of the exercise.

3. Determine the intensity of exercise, which is the key part of exercise prescription, and it should be determined according to the age, health status and exercise ability of the athlete.

4. Determine the time of each exercise. The daily exercise time should also be considered according to the characteristics of physical fitness and exercise. Japanese scholars put forward that "when making exercise prescription, the exercise time should be as short as five minutes and as long as one hour".

5. Determine the frequency of exercise, that is, the number of activities per week. If conditions permit, it is of course better to exercise 1-2 times a day. The most basic requirement for making exercise prescription is not less than twice a week.

6. Put forward the matters needing attention. You can point out taboo exercise, the index of self-observation during exercise, and the standard of stopping exercise when there is abnormality.

Therefore, exercise prescription is an extremely suitable method.