What happens in the human body when
What happens in the human body when.
What happens in the body when conditions change in the external environment or physical activity? First of all is the adaptation (adaptation) of an organism to changed conditions, i.e., changing the rate of biological reactions. In the phenomenon of adaptation identify qualitative and quantitative components. The quantitative component is expressed in a continuous variation of the number of active structures. In normal conditions of functioning of the body “works” only a small part of the functional structures, ensuring its normal functioning. The load includes backup structure, the load reduction leads to a decrease in the number of
structures with active biosynthesis. This principle has been called alternately (asynchronous) work of the same structures. It is fair for all levels – from molecular to systemic. For longer loads, and the more constantly increasing, are incorporated in all new patterns; when there is insufficient inclusion of all structures, there is an increase in their number, i.e. the construction of new structures, or hyperplasia. If the load becomes prohibitive and patterns, providing work, die, then immediately (within several hours) in the body undergoing a process of reparative regeneration occurring at the intracellular, cellular, and tissue or organ levels. All these species regeneration occur not only at increasing physical activity, but also in normal growth and development of the organism. Regeneration contributes to the improvement of the structural organization and the adaptation of the structure to certain external influences.
During sport training, especially with weights, all the same processes, but is particularly pronounced muscle hypertrophy. Under the hypertrophy refers to the increase in cell mass (fiber) and as a result, the muscles in General. Hypertrophy does not imply increasing the number of cells and muscle fibers. However, it is founded on intracellular hyperplasia. The basis of muscle hypertrophy, formed under the influence of repeated physical exertion, lies hyperplasia organelles of muscle cells (mitochondria, myofibrils, sarcop-plazmaticeski of reticulum, etc.). Hypertrophied muscle fiber at a meeting about a strong irritant (training loads) will be more strong, tough, because it has a large pool of job structures.
However, be aware that a heightened state of fitness – the situation is fragile. The termination of training leads to involution of the formed structures. Patterns that don’t work in the body, not stored – this is the cause of reduced athletic performance after you stop or reduce training loads. To recover requires considerable time.
There is another side of the processes of cellular hypertrophy and cellular hyperplasia – constant waviness of the processes of formation and destruction of intracellular structures regardless of external (training) influences. This phenomenon is called “endogenous reducing tension reparative regeneration”. The change of increase and decrease in the number of intracellular structures is a consequence of the existence of biological processes of a different nature. Knowledge of these processes allows the specialist to objectively assess the results of training sessions, to understand the waviness sports results. We will not delve into chronobiological processes. Just to say that biorhythms reflect the period of time in the living system, and therefore, there are individual variations BP respectively of the body.