The main provision of any training process reads trenirovovchnaya load should create stress to the body , It does not exceed the adaptive capacity of the reserve.
That is why it is so important to your classes any exercise was strictly verified according to your individual circumstances. That is why there is such a science as a sports medicine. That's why coaches are trained and with you are responsible for your health.
Question stress - Very extensive. I want to touch on the issue from different angles, starting with the history of the study of this phenomenon.
In subsequent posts I go to question the effects of stress, such as free-radical oxidation, noogenic neurosis. We discuss the possibility of leveling the prevention of stress and its consequences. We discuss possible approaches. As a practicing coach, like the classic recipe for a panacea: "Sex, sports, sauna." We'll talk more about the pharmacological support: adaptogens antihypoxants, antioxidants, nootropics, the regulator of mental status, medications, accelerating recovery, preventing a decrease in immunity; the practices of relaxation, meditation, breathing practices.
What is stress? Why is it needed? It has provided its very nature!
Stress - A non-specific reaction the body the effects (physical or mental), disturbing his homeostasis and matching state of the nervous system.
For the first time the physiological stress It described in 1936 by Hans Selye as the general adaptation syndrome in his work "The Stress of Life": "Stress has a non-specific response of the body to any which the claim. [...] In terms of the stress response, no matter pleasant or unpleasant situation with which we are faced. All that matters is the intensity of the need for restructuring or adaptation. "
Versatility accompanying stress "triad changes" - reduction of the thymus, an increase in the adrenal cortex and the appearance of hemorrhage and even ulcers in the lining of the gastrointestinal tract - allowed G.Selje conjecture about the general adaptation syndrome (OAS), which was later called "stress."
Exploring the possibilities of human adaptation to stress Selye brought adopting energy theory, which includes the following provisions:
- Adopting energy available in limited quantities, given from birth.
- A limited number of adaptive energy can be used for the reaction of one stimulus or distributed among the various directions of the response.
- There is an upper threshold of intensity of external factors, the transition through which causes the body's adaptive response.
In 1952 Goldstone suggested that criticism and the development of the theory of Selye 'adopting energy can be produced, although its production is reduced in old age, it can also be stored in the form of the adaptation of capital, although the capacity for this capital is limited. If an individual spends his adaptation energy faster than it produces, it consumes its adaptation capital and dies in its complete depletion. "
Goldstone has introduced the following concepts:
Eustress - The concept has two meanings - " stress Caused positive emotions "and" not strong stress, mobilizing the body. "
Distress - Negative type of stress to which the body is unable to cope. It destroys human health and may lead to serious diseases.
Now we commonly use the concepts of short-term stress and long-term stress. These concepts can be compared with the definitions of the Goldstone eustress and distress . Understanding the difference between these concepts, we will look at why and how stress can be a positive response of the body in the form of adaptation, and can cause failure of adaptive capacity and lead to disease, aging of organs and systems.
While stress is a strong release of neurotransmitters into the bloodstream. The result is a general agitation, accelerated thinking, increased physical activity, strength and endurance. Such a reaction excitation CNS entrenched in the process of evolution. There are multiple instances of an amazing increase in strength, for example, when the old grandmother learned from the fire box, weighing 1, 5 quintals, or the woman who raised her on their shoulders truck weighing 3 tons, to save her child.
Neurotransmitters are released into the blood at the time of stress and stimulates the adrenal glands to produce adrenaline and glucocorticoid hormones . T . about . increased blood pressure through pererasspredelenie blood flow throughout the body (as e.g., narrowed vessels in the excretory organs, increases in the skin and muscles for delivery of necessary nutrients and enhance heat transfer wheel), increased blood sugar and free fatty acids in the blood (for fuel) increased muscle protein breakdown and other protein structures, etc. . d . Since the human body is preparing to fight . If this fight takes place, you have a chance to briefly use the increased capacity of the organism, or at least throw emotions . Reorganization of functions and systems of the body is a reflection of the individual features of the organism that has proved Selye, bearing in mind the limitations of the individual backup features to adapt .
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