1, the principle of step by step: the white order of step by step in physical exercise refers to the step by step from small to large, from easy to difficult, from simple to complex when learning sports skills and arranging exercise.

2. Principle of all-round development: In the process of physical exercise, we should pay attention to the diversity of activities and the overall improvement of physical function.

3. Principle of differential treatment: When exercising, we should treat each exerciser differently according to his age, gender, hobbies, physical condition, professional characteristics and exercise basis, so as to make the exercise more targeted.

4, the principle of regularity: often participate in sports activities, the effect of exercise is obvious and lasting, so physical exercise should be regular, not fishing for three days, drying the net for two days. Although short-term exercise will also have a certain impact on physical function, once physical exercise is stopped, this good effect will soon disappear.

5. Safety principle: Pay attention to safety when engaging in any form of physical exercise. If the physical exercise arrangement is unreasonable and violates scientific laws, injury accidents may occur.

6. The principle of consciousness. To engage in sports, we must have clear fitness goals and consciously engage in sports. Self-consciousness refers to serious exercise, paying attention to muscle relaxation, joint repetition, breathing in and out, fast pace, flexion and extension, so that the body, spirit and mind can be exercised, and appropriate methods can be selected according to the purpose of bodybuilding or fitness.

7. The principle of moderation. "Life lies in sports". But is it true that the more exercise, the better your health? In fact, if you exercise improperly and don't know how to stop, sometimes you will get twice the result with half the effort and get the opposite result. Good results can be achieved.

Precautions:

1, grasp the load. When doing strength exercises, you should choose the appropriate load according to your actual situation, but no matter what kind of load you choose, you should follow the principle of growing from small to large, and don't suddenly increase the exercise load to cause sports injuries.

2, pay attention to the speed of action. As long as dynamic muscle strength exercises are carried out, there is a problem of movement speed, and load is closely related to speed. The greater the load, the smaller the speed. Exercisers should make reasonable arrangements according to the practice requirements. For teenagers, explosive power is very important. In strength training, it is very beneficial to choose appropriate load and speed up the movement as much as possible to improve the explosive force of muscles.

3. Control the amount of exercise. For ordinary physical exercisers, it is not necessary to carry out strength training every day. Even for the purpose of developing muscle strength, adopting strength training every other day is enough to achieve the ideal effect. If you do strength exercises every day, not only the effect of improving muscle strength is not obvious, but also the development of overall function is not coordinated.