Archive for Julio, 2008
In sport language it is denominated “hack squat” to the flexion of arms, in suspension, hung of a bar, stairway, or place where to be held with the hands.
With this movement we elevate the body from a lower (the arms begin extended) point, until playing with the chin or the chest the bar (the arms finish bended and hit to the trunk).
The one dominated the most potent exercise to develop the musculature of the wide number, and it contributes muscular more benefits than the poles with high pulley.
Both exercises are seemed as for the movement, but the one dominated is working with the weight of the body, with what the muscular work is bigger.
These exercises, in those that the body moves regarding a fixed point are considered of closed chain. However, the poles with pulley would be movements in open chain, because an external load moves regarding the body that stays fixed in all moment.
UTILITIES
This exercise is directly related with the practice of it climbs her, with the result that it is exercise of fundamental training for climbers and opponents that have to climb for a rope (the firemen’s case).
As exercise that develops all the muscles flexors strongly, it is very beneficial for fighters whose specialty depends on holding on to or take to the rival (judo, canarian fight, etc ).
The sports in those that influences a strong development of the numbers, like in the case the javelin pitchers, it also admits the work of hack squats, but always in phases very far from the competition, since the characteristics of the movement don’t look like each other a lot and they can end up harming.
In the daily life, a strong back is a guarantee of health, they decrease the pains in the high back and the shoulders that are very related with many hours to happen sat down in office works and study.
In a next chapter we will continue explaining that musculature is the one that intervenes in this exercise.
We will continue …
Julio 27th, 2008
The coffee, the tea and the cola drinks are completely integrated in our daily life. The coffee is habitual in the breakfasts to overcome the morning dream, as well as in most of the later gatherings to the food. Two of the world biggest multinationals are producers of cola drinks, and the tea in all their forms (white, green, red), has more and more acceptance.
The characteristic common of all these drinks is its power activator and the substance that it gives them its exciting character is the caffeine.
The caffeine is a natural product that is present in many foods, not only in these drinks, but it will be the proportion of caffeine what will mark its stimulating capacity.
A cup of coffee can contribute between 60 and 110 mgs of caffeine. The tea has a much softer contribution, depending on the type that is, being able to be around the 10-90 mgs.
The cola drinks contain about 35 mgs.
The chocolate in cup can contain between 5 and 40 mg, and in bar of 50 grs it can contribute us between 10 and 60 mgs of caffeine.
We can also find in the pharmacies supplements of caffeine that can contain between 30 and 200 mgs of caffeine according to the types.
Today, the caffeine is considered a doped substance , but only in big quantities. To consume 800 mgs of caffeine in 2 or 3 hours, it overcomes the legal limit. This is the equivalent one to 5 or 6 strong coffees or 4 pills of 200 mgs).
Previously it was prohibited for the first time before The Olimpic Games of 1972 to consider it like a drug, but it was retirement of the list because it wasted away in the habitual (coffee, cola drinks, etc) drinks.
In The Olimpic Games of 1984 it was prohibited to consider again that it improved the yield artificially, but it is only time if it is taken in big quantities, like it has been mentioned before.
To detect the caffeine in dope tests, the controls are used of urine. And it is that the caffeine is eliminated by means of the urine, although fundamentally we come off of it for the perspiration.
Later on, we will speak of like it influences the caffeine in the physical exercise.
We will continue …
Julio 27th, 2008
In the swimming tests, except in which nothing of back and the test of styles, is begun from outside the water.
Part of a static position at the top of poyete. The judges indicate the exit, and is the moment at which we can jump to introduce itself in the water.
The objective of the exit of swimming is the one to happen of the position of exit outside the water to I swim of the most fluid form. It interests to us, in addition, to cross the maximum possible distance, because this way the displacement is faster and we saved energy of I swim that we will need later.
In order to obtain it, it is necessary to generate the smaller possible friction with the water, as much when entering as when sliding to us underneath.
This friction would restrain to us, and it would force to us to begin to swim almost from unemployed, with great loss of time until the speed that we wished, as well as of energy is reached.
The technique of jump to the water, for that reason, is oriented to jump far, and to enter the water of the way more possible hydrodynamics.
For that reason we are going to divide the exit in several phases, that there are to develop technically to be able to improve the execution as a whole.
1. Position of exit: In stone bench we must ourselves place of a way that us of the maximum stability and adhesion to impel to us. It is possible to be started off with the two together legs, or one advanced.
When wanting to impel itself from this position we can doubt the adhesion in stone bench, reason why to advance a foot is going to give more security to us.
The hands subject in the part advanced of poyete and it helps us to impel to us.
The head watches downwards, reason why to leave, we must ourselves guide by the sonorous stimulus. It is very important not to make null in this test.
For a good answer a great concentration is fundamental, to know how to distinguish with more facility the stimulus to which we must react.
In order to leave, we sent ourselves forwards and above after backwards pushing stone bench with feet and hands. When leaving stone bench, is necessary to extend totally with the arms stretched over the head.
We will continue with the rest of the phases…
Julio 27th, 2008
The throwings are movements that try to add all the motive resources that the sportsman can develop, to apply the maximum impulse possible to an object and to send it to it as far as possible.
In the throwings an area exists for that reason, in the one that the pitcher can generate this force, and a launching area, to where he has to direct the device.
These areas are defined by a narrow mark that indicates the place through which have to pass the object, and also the limit that the pitcher doesn’t have to overcome.
It would be quite dangerous that the device could leave in any address, mainly when in some launchings, quite considerable (in javelin the 100 meters are been about) distances are reached, to part that if a limit doesn’t exist for the pitcher, the measure points could not be clarified.
These two aspects mark the general norms of the throwings. Not to spend of the limit and being able to direct the object toward where we want.
These norms tell us that the throwing is not a gross simple application of the force, and that we have a control and domain of this impulse.
Each one of the four throwing disciplines has some own characteristics that differentiate them.
The nature of the device forces to carry out a mechanics of different throwing, but all the throwings in its execution go by a series of phases.
These phases are repeated in all the throwings and it is something that they have in common.
It will continue.
Julio 18th, 2008
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