Today about the muscular system and adaptation of the central nervous system to effort - part.4
Hello!
Let's see today what changes occur in the central nervous system during exercise training.
source:pixabay
Adaptation of the central nervous system:
Force is a property of motor units in a muscle, the nervous component having an important role. Recruiting units the motor partly explains the gains of force that occur in the absence hypertrophy. These engines are recruited one after the other in time of effort. They are controlled by neurons that have an excitatory role inhibitor, and depending on the mount of pulses arriving simultaneously at may many muscle units contract muscle or relax.
The more engines are recruited simultaneously, the higher it is he ability of the muscle to develop greater strength.
If inhibitory impulses are blocked, recruitment may occur multiple motor units. This answer only follows trainers with very heavy weight, after adapting the tendons to these types of training.
Inhibitory mechanisms exist at neuromuscular level to protect your muscles from contractions very strong, which can cause pulling out tendons from their insertion on the bones (the mechanism is called autogenic inhibition).
When tendon tensions go over a critical level, specialized receptors (organ Golgi) signals the central nervous system danger, it inhibits the action of neurons motors to prevent injury. Repeated alerts reduce pulses inhibitors and allow muscles to develop great force.
Increasing force is also possible due to the activation of agonist and antagonist muscles. If it is contract triceps and biceps simultaneously could not achieve no movement. The adaptations of the nervous system improve the nervous coordination of the muscles involved in the movement and increases the effectiveness of strength training.
It is good to know that in the first 2 months they will not register significant increases in muscle mass and growth force is due to nervous system adaptations.
Stay fit and healthy!
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