How to run to lose weight and improve health
How to run, and what sport? Sports are necesary for our development of the organism, it helps to keep life tone. Using not tricky exercises you can start the fight…

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How to combine alcohol and sport are doctors and sports instructors — FURFUR — FURFUR
  We have tried to figure out how to fight and dance. being drunk. This time FURFUR decided to go further and find out whether you can combine busines with…

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Masage and self-masage tool body recovery after exercise
Masage originated in ancient times. The word "masage" comes from the Greek word"μασσω", which means "to knead", "to knead", "stroking". Masage as a treatment method was used already in the…

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Physiology of muscular activity

Muscle activity is related to a basic property of muscle – ability to acronyms or airway. However, the muscles could be reduced if the muscle tisue have not had yet and physiological properties such as excitability and conductivity.

The property of contractility is manifested in the ability of the muscles to a single or total (tetanic) contractions. The body always happen tetanic, relatively long muscle contractions, because they receive not alone the momentum and flow of rhythmic impulses from the Central nervous system (CNS), and each of them calls the new contractile effect before the end of the reduction from the previous pulse. However, in experimental conditions it is posible to reproduce single reduction; the graphic image

of this reduction (of myogram) allows to allocate three phases: latent, or latent (thousandths of a second), the reduction phase and the relaxation phase (tenths or hundredths of a second).

Weak single reduction can take place only at a certain minimum strength irritation – Horny irritation, as well as diminishing only the most rapidly-excited fiber. The increase in the strength of excitation (up to a certain limit) leads to increased contractile effect because it reduced and les excitatory fibers.

Tetanic contraction is always stronger than a single, but each skeletal muscle has an optimal mode of irritation (from 100 to 200 pulses / sec) at which the reduction is strongest.

The muscles maintain a certain degree of tension, or tone, and when the reduction does not occur. Muscle tone is important to ensure a stable position of the body in space; only during sleep, both natural and drug, there is complete relaxation of the muscles, with the exception of the respiratory muscles, which continue to contract rhythmically (only for certain types of anesthesia are relaxing and breathing muscles). State of tonic muscle tension can be maintained by flow from the CNS single pulses that alternately stimulate different muscle fibers.

Morning exercises
Recently gaining popularity is the belief that the morning physical exercises instead of the use is harmful. The mas of evidence adduced in defence of this claim, upon closer examination…

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Morning exercises for weight los
As you know, our club offers spacious gym and aerobics. But Breakfast is the most important meal of the day. Boil the milk (or a mixture of milk and water),…

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