In fact, whether it is strength training, displacement training, ball games or other competitive events, as long as the trainers train for a period of time, they will improve their level in this project.
In biology, this is called "stress" and "general adaptation syndrome".
Kinematically, this is called "excessive recovery".
First, stress/adaptation: the theoretical source of excessive recovery.
Excessive recovery is a training phenomenon and the basic theory of kinematics. Its theoretical basis comes from the stress theory of Canadian pathologist Hans Selye, also known as General Adaptation Syndrome (GAS) theory.
According to the stress theory, organisms often react in a fixed form when facing infection, poisoning, trauma, nervous tension, high temperature, low temperature, muscle fatigue and radiation pressure, so as to maintain the stability of the internal environment. This reaction is called "stress" (also called "adaptation").
In essence, stress is a physiological reaction, and its purpose is to maintain life and recover after injury. Externally, stress is the process that our body resists the pressure and adapts to the environment when facing the external environmental pressure. This process is generally divided into three stages:
1. Mobilization period: At this time, we haven't got used to it, and our ability has declined.
2. Adaptation period: At this time, the adaptation reaches the best state, and our ability gradually rises.
3. Exhaustion period: At this time, our adaptation gradually loses and our ability returns to normal.
And this kind of pressure phenomenon can also be shown in sports.
The theory of "excessive recovery" is a kinematic theory based on stress theory.
Second, what is excess recycling?
Excessive recovery refers to the situation that athletes or ordinary people's physical fitness level will gradually decline after one training, and then gradually improve after eating and sleeping, even exceeding the original physical fitness level.
Excessive recovery is the basic theory of kinematics, and it pays more attention to the "mobilization period" and "adaptation period" in stress theory. Coaches need to exert reasonable training pressure on athletes to keep them in the "adaptation period" and keep their physical fitness level rising. Take the strength training in our fitness as an example:
Mobilization period (physical decline): When I first entered the gym for strength training, my body felt different pressure than before. During training, our muscles began to be congested, tired and torn, and the nervous system began to recruit more muscle fibers to participate in strength training; On the second day after training, our muscles felt extremely sore, our arms were too sore to carry heavy objects, our legs were too sore to go upstairs, and our nervous system's ability to recruit muscle fibers decreased. This stage belongs to the "mobilization period" in the stress theory: at this time, we have not got used to it, and our ability has declined.
Adaptation period (excessive recovery): After a few days, when our aches and pains completely stop, we will go to the gym for strength training. We found that we can press/squat/pull up more weight than last time, and our body is not so sore after training. This stage belongs to the "adaptation period" in stress theory: at this time, the adaptation reaches the best state, and the physical ability gradually rises. This state is "excessive recovery".
Fatigue (physical recovery): Then, we stopped training for some reason. At this time, our muscles will atrophy, our nerve recruitment ability will begin to decline, the adaptation gained from previous training will gradually lose, and our bodies will return to their original state. This is the "exhaustion period" of stress theory.
These three stages are shown in the following figure:
(Source: Tudor O. Bumpa, G. Gregory Huff, Cycle)
Third, summary: Why should we insist on training?
As mentioned above, excessive recovery only happens when exercise is applied. If we exercise for a few days and then stop exercising, then the body will gradually return to its previous state of inactivity.
Kinematics, more attention is paid to how to make "excessive recovery" continue.
Only when we constantly and regularly exercise, will our physical function gradually improve.
(Source: Tudor O. Bumpa, G. Gregory Huff, Cycle)
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