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رومنسية حنونة · #2 December 18, 2010, 09:23 PM

The safety of the working environment of the computer damage

الموضوع من انشائي ..

Computers play an important role in our daily lives, as well as it has become an integral part of the basic elements in the work environment. We are Anstaml computer in the workplace, but also we use it at home. And despite the fact that this machine has made our lives exciting easier and more effective, but it turned out that the prevalence of use among people caused them some harm as a result of ill-use it.

Sitting in front of a computer for more than despite of hours may cause eyestrain and stiffness of the back and numb hands and feet and also the burdens and many of the symptoms of sick Tlakry including inflammation of the carpal tunnel. This is happening kind of infections difficult in the wrist, is the famous Balisabpalnatjp for a repeat performance of the movements certain manual. And increasing severity of these symptoms over time and usually Matzar after several years of attendance to the performance of hand movement itself, during which the muscles are tense. Once the infection Uttar carpal tunnel wrist muscles swell, and then infect nerve tissue and muscle fibers. And usually experience whose work requires daily spend long hours in the performance of repetitive hand movements. Such as printing on the keyboard. More than others to the risk of these symptoms.

You may have heard some echoes of boiling the last words: "Ergonomics", a term scientific offset in Arabic: "Human Engineering in the safety of the work environment." What is the meaning of this phrase in particular? It is primarily concerned with studying how the interaction of the individual physically with the performance of his duties functional, and the extent of harmony with the nature of the work assigned to him and the equipment used and Jawaam environment prevailing in this work. Through the practical application of this overall concept, can be adapted to the conditions and methods of operation of your computer, at work or at home on both, so you can perform your work in an environment in which to enjoy the safety and comfort, competence, high productivity.

There are three fundamental considerations recommended by the major decisions of the "integrity of the environment i work for entities that adopt the computer in the performance of its work:

Development of the computer screen

Keyboard mode

Sitting position

Development of the computer screen

The best angle to rest of the eye while looking at the computer screen, is the angle ranging from 15 to 30 degrees toward the bottom. Should be used header put the computer screen in a position to mitigate the power of pressure located on the neck muscles as much as possible, and extend the head slightly forward so the chin tilted slightly down. And must not be lifted to the top of the head (to the extent that consideration of the eyes in a straight line Amama or high) because the lifting of the head up. Would strain the neck muscles. And at the head also tends user screen mode your computer to open his eyes as Atsallma. In this case, does not result in the eyelids and function in the prevention of dry eyes or contaminants.

Screens should be placed so that the development of the computer screen to light bright lines stranded field of view when user put the computer screen, because the glare reflex is the main cause of eyestrain.

Keyboard mode

Must be the weight of the arm propped to ease the ongoing pregnancy reality on the shoulder and humerus arm and helped him. For this, you must be the development of the keyboard and mouse in hand so that the upper arm close to the trunk. Should not be extended arm too far forward to reach the keyboard mode. Asadan must be parallel to the ground during use of keyboard mode so that there is a need for more than a slight increase or decrease access to a keyboard. Must be placed in front of a small dolly the keyboard directly to the same height and weight of the load to the wrist.

Preferably the angle established between the forearm and upper arm by 90 degrees (or slightly less), which requires that Asadan Moiziinellardip fingers when they are based on the keyboard. Must not be a screen, mouse or any other device on the same surface of the base, but put each one on the roof of a stand-alone, provided that the firm and Qlbula adjustable.

That the best mode of all is DESIGNED to be straight, based on a support dolly, without bending up or down (extension and bending) and without twisting on both sides. Such a situation allows the nerve channels of the tendons to drive through relatively free of barriers across the carpal tunnel.

Sitting position

Must increase the angle between the trunk and thigh for 90 degrees (preferably between 110 to 120 degrees), the two men must also be extended a little forward. The concept is basic scientific research to explain the validity of this situation, is that a breakthrough hip angle with the trunk for more than 90 degrees reduces the spinal disk compression and movement of muscles in the back and works on the integrity of the column of poverty. And this situation can be taken right to sit high so that the angle of the thighs down. Snada used for the feet, if your feet are not touching the ground. Lift the seat to the top of his seat and hoped a few degrees forward.

Must be supportive of the back of the chair lumbar vertebrae, lower back, as it should be high chair capable of being modified in the sitting position. Must be the base of the chair with five legs to provide maximum stability. Must be put in the annexes to the computer, Mishaal at an angle of 90 degrees, allowing Saeidin in parallel with the floor.

Safety Tips

Give yourself at regular intervals to rest, get up from your chair and move around you. Because any slight change from the sitting position, and any move is simple, even for a few minutes, help to relax tense muscles.

Sign exercise parts of your body, which became tense after staying for long periods of work on your computer: fold your hand, and move the neck is circular, and turn the head left and right, stand on your feet and stretch your body.

To reduce eyestrain, adjust the lighting in your work place to a level that relieves your opinion. From time to time, your eyes focused on something other than your computer screen.

On the direction of the computer screen to avoid any flares or light reflections directly. If you can not, you must use screen type Alemtem anti-glare light.

Adjust the height of the computer screen, which provides visibility as comfortable without having to bend. Sign also adjust the brightness and contrast in the screen brightness to a level most appropriate for you.

The follow the instructions with regard to the safety of the work environment, will Isaek on the prevention of injuries for the use of devices Ahaiapalmassahabp Akmpiotr.