Twitching of muscles occurs when the resistance is very strong or vigorous, and the muscles simply can not overcome. In this case, they are under stress, but not stretched.

Following isometric training system, you should do only one maximal reduction for each exercise. Comparing the work with the simulator or with free weights with an isometric load, which requires a totally different energy, we can say that the isometry is not annoying and does not tire, allowing bodybuilders often to train in comparison to other training exercises. Isomagic allows you to train six days a week, while you do not need much timef or a rest, the most important thing here is the desire to have eye-popping muscles and technique.

The maximal reduction allows to involve in the work tendons and ligaments in the most high degree than multiple repetitions with weights. The maximal reduction forces to work more actively nervous system, which will certainly appeal to many athletes, because no one has interfered with an improved response.
Experiments have shown that the isotopy (movement burdening in a short distance), with the addition of isometric exercise more productive than a pure isometry. Of course, this does not mean that the isometry is not working independently but in conjunction with isotonic exercises you will achieve greater results and get the maximal effect.
There are several ways of introducing an isometry in the training program. Best for you to start with a small isometric program not to alter dramatically your usual training cycle. Divide by the days of training, do not worry about the fact that you will wear down all power, no power will recover quickly, and it has its reasons: isometric training should be short, but powerful, while the remaining exercises should take place on the principle of moderate, severe and effectively. Short exercises are a useful stimulation, which is beneficial to exercise during the week.

Different situations can lead you to an isometry, tiredness of the current program, or do you just want a change, then boldly give preference to the isometry, which will certainly renew your enthusiasm as you start working on a new technique with new technology that will require you to completely another type of concentration.
We talked about the fact that isometrics are less tiring than a full dynamic movement, but that does not mean that the isometry can not lead you to overtraining. Here we must clearly understand the brink, as the balance is so fragile that you can just forget about it, because of the lack of attention and relaxation. The fundamental principle says that if you are able to attack the most heavily ligaments and keep muscle reduction at least seven seconds, you will not be able to increase them more. Even when you have overloaded muscle groups too much and feel to the occasion and you still have the strength to continue training, better stop!

We recommend not to perform in one day more than three items for one part of the body. Even enough squats twice: in the middle and in the bottom. The upper point of the squat is not problematic, unless you are weak in this segment of the amplitude. But if you decide that this amount will not be enough then, please do a couple of sets.
Isometric training program is based on three press positions, three traction, two squat and a rise up on your toes, taking into account the short breaks between sets. Other sources offer six or seven positions for one body part, but they do not take into account the fact that the already overworked cords do not get stronger if they continue to train. Even if you continue to train them in other positions or at other angles, you have to remember that anyway you train the same muscles, ligaments and tendons.
Therefore, less sets to do better, but with effective performance!

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