The reaction (I) speed: What is it?which their importance is?

 
The reaction speed is the capacity to give answer to a stimulus. It is not necessary to confuse it with the speed of movements.

The speed of movements  represents the speed with which we are able to move. It can be of many types, but it always implies muscular actions.
On the other hand, the reaction speed is a capacity that depends totally on the nervous system, without necessity of implying to the musculature.

It represents the capacity of our nervous system to receive a stimulus, to identify it, to decide if it was necessary and to send an answer to the musculature to respond.

In all the sports and activities appear the two forms. The speedy movements never appear spontaneously, they always represent the reaction before something.

In some cases it is about measuring the speed. In these cases, the sportsman has to react before a stimulus that marks the beginning of the timing.

In the case of the career of 100 flat meters, the reaction speed marks the time that lapses from the exit shot until the athlete begins the movement, and the speed of movements will determine the time that is invested in running the distance since it begins the movement until it arrives to goal.

There are other sports, as the fight, the collective sports, racket sports, etc.,in those that the speed is manifested like a quick answer to changing situations.

The boxer reacts with one it avoids quick to the attack of the contrary one, the football porter jumps to clear a ball that he goes toward his goal, etc.

The speed of movements never appears in an isolated way in the sport mark, neither in the daily life. And it is that the apparent speed the speed with which we adapt to a situation or we solve a problem.

Of there that to improve the speed in some concrete activity, it is necessary to train the speed of movements so much, as the reaction speed.

And it is that of anything it serves to the sprinter to run very quick or to the boxer the very quick being, because if he doesn’t react quick, it will insert all the blows.

In a next chapter we will speak of the reflections that are the quickest answers that the human being can give .

We will continue …

Add comment Agosto 12th, 2008

The creatine (I): What is it?

The creatine is one of the supplements more used lately in the training for the development of the volume and of the muscular force.

It has been marketed their use and this is to the reach almost of any person.
For that reason it is important to know this substance well, to avoid an arbitrary use that can end up to harm us.

As all the external helps, it is necessary to know as taking out it the maximum profit, and as avoiding possible contraindications.

The creatine is an organic element that is present in the muscular cells. Not it is an amino acid, but if a made up of nitrogen of the group amina that combines with the phosphorus to form the phosphocreatine.

The phosphocreatine allows to store energy in the muscle, and for its vicinity to the muscular cell assures the quick provision for the muscular contraction of high quantities of energy. For that reason it is necessary to execute and to prolong, the short efforts of high intensity.

In another moment, we will explain with more detail how it  obtains from the body the necessary energy to carry out physical efforts, but to be able to understand the function of the creatine in the organism we will expose a global vision.

The muscular alone cell can get the energy to carry out its work starting from a denominated element TAP, of great simplicity and that it is only formed by three phosphorus molecules that condense an energy  of great capacity in its links of union.

All the energy reservations of the body (hydrates of carbon, fatty, and even proteins) have to break down until arriving to the form of ATP to be able to be used by the muscular cell.

The way for which each one of these substances becomes TAP is different, and the time that they need to get energy, as well as the quantity given .

Certain deposits, as those of muscular glucose, are more accessible, for their proximity, and to have to suffer less decomposition to form TAP.

However,  fats and proteins have to come from more distant places and they need longer elaboration processes, for what we need more than thirty minutes, for example to begin to use deposits of fat in the exercise.

It will continue.
 

Add comment Agosto 4th, 2008