Body Working In Sports

First of all, I would like to introduce the composition that I have made. The main reason why I have chosen this topic (sports) is because I really like it and I consider that there are some technical concepts and also lots of scientific studies that allow me to make a complete technical text.
I have divided my presentation into different parts. In the beginning, I will talk something aboutlocomotive system and then I will focus basically in the muscle and all the elements involved in human body motion and some ideas of different types of strong applications.
I have made my composition organized in different points that could possibly make easier the understanding.

LOCOMOTIVE SYSTEM

It is composed by bones, articulations and muscles.

1) BONES

According to the mechanic pointof view, they have a triple function:
• Holding ( they make the skeleton of the human body.
• Protection ( they make boxes and protection walls for the entrails. This function makes possible the correct working of the organism.
• Mechanic levers ( they are responsible of the movement of a person.
The bones aren’t totally static elements. Since born until the person is twentyyears old approximately, the bones have a complex process of growing not only in length, but also in height.


2) ARTICULATION

Human would be a vegetal if he couldn’t use these elements which work as hinges, bearings, joints and also, he couldn’t make any movement by his own instructions. Besides allowing and limiting movement, articulations work as absorption part thanks to thecartilage. Having a lack of these articulations, bones would collide during the walking and other movements, and consequently, they would rub between them and also wear down.

3) THE MUSCLE

The muscle is, in fact, the engine of the human locomotive system. It means that it has the ability of generating tension over the bone plaque, or in different words, it can make an effort to move somethingor move the body.


3.1 .- Muscle structure

3.1.1.- Muscular fibre

It is composed basically of actin and myosin proteins carefully placed in parallel layers and joined together by other tropomyosin protein filaments. When the nervous stimulus takes place, and in presence of the ATP (adenosine triphosphate), the proteins make a contraction and consequently, the length of themuscle decreases (it is called concentric contraction), can also increase the tension but maintaining the length (isometric contraction), or the last possibility is increasing their length making a braking action (it is known as eccentric contraction).

3.1.2.- Types of muscular fibres

Not all the muscular fibres experiment the same metabolic processes. Some of them , the famous“slow contraction fibres or red fibres” are full of plenty of capillaries and also have a big amount of mitochondria. The mitochondria is a part of the cellular cytoplasm, that is responsible of the aerobic metabolism. The other type of fibres, that are commonly known as “fast contraction fibres or white fibres” have less capillaries and less amount of mitochondria. These fibres have higher enzymaticability to activate the lactic metabolism.




3.2.- Different applications of Muscular Strong

a) Maximum load

It is a weight that a person is able to move only one time but it couldn’t be able to repeat a second time.

b) Powerful concept

The power is a physic measure that relates work with time. Performance in athletics is related more with power than withstrong. It is much recommended to train controlling the power than do the training controlling the weight that is moved.
The progress in the working of strong with young sport people has two different ways: the first one consists on prepare the muscle to reach high levels of maximum strong and the second one has the aim of allowing to be able to generate the greatest possible power with...