Physical exercise is based on effective and reasonable physical activities carried out by people.
To make this kind of physical activity effective and reasonable, it must follow a certain basis, and this basis is the principle of physical exercise.
The principle of physical exercise is a theory of principle significance that comes out of physical exercise practice.
This theory is multifaceted, mainly from the following points to make a brief introduction.
Stimulation and adaptation are altered and enhanced
Physical exercise is actually a kind of exercise stimulation to the body.
Under the stimulation of exercise, it causes a variety of reactions of the body, and with the increase of the number of stimuli and the continuation of time, the growth of the load and length, the human body in the form, function, quality, physical fitness and other aspects, resulting in adaptive changes and enhancements.
Exercise fatigue and fatigue recovery
The process of physical exercise is: exercise - fatigue - rest - recovery.
Only when fatigue occurs in exercise, can physical strength be restored through rest, and then improve the body's tolerance to fatigue.
People's physical strength and various athletic abilities must be enhanced and improved through the fatigue exercise generated by sports, this phenomenon is called "excess recovery".
The so-called excess recovery refers to the human body through a certain amount and intensity of exercise stimulation, so that the body fatigue, and after rest, the body's metabolic capacity and physical condition, can be restored to a higher level than before the exercise.
People's various sports qualities and physical fitness have been improved in the repeated appearance and repetition of this "excess recovery".
In physical exercise, we should consciously use this law to enhance the effect of exercise.
Energy expenditure and nutritional supplement
Exercise must consume more energy material in the body. Therefore, it is necessary to pay attention to nutritional supplements after exercise. In this way, the body's metabolism can be gradually raised to a new level.
This can not only enhance the absorption and utilization of nutrients by the human body, but also enable the enhancement of physical fitness to be fully guaranteed.
Use or lose the laws of nature
All kinds of abilities of human use, the physiological functions of human tissues, organs and systems, all follow the natural law of "use into or lose".
All kinds of people's original athletic abilities can gradually fade away without use or exercise; And these abilities can be surprisingly improved and developed in regular exercise. People often say: "life lies in movement", this sentence is quite philosophical and scientific.
