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General Workstation Ergonomics for the Good of Your Height and Growth

Head / neck Basics

* Head centered on the shoulders
* Shoulders relaxed
* PC monitor centered on user-head
* To monitor proper distance and height (see “Monitor” below)
* Do not bend the neck forward or to the side

Eye Basics

To avoid eyestrain associated with computer use:

* Blink often (about every 5 seconds)
* Refocus your eyes at regular intervals (approximately every 20 minutes) on a distant object 20 or more meters
* Glasses should be clean and have a comfortable focal length for computer work

Monitor

* Monitor distance should be 18-26 cm of users (such as an arm’s length)
* Monitor centered on users
* Neither user should monitor or a window
* Monitor should be at right angles to the window or between rows of fluorescent lamps, rather than directly under them
* User’s eyes should be in line with the top of the monitor or a point 2-3 cm below the top of the screen

Holder

If your work requires frequent reference to a document, you should have a document or copyholder. Place the holder of the monitor at the same height and distance from your eyes as the monitor.

Hand and wrist Basics

* Keep your hands and wrists straight and relaxed
* Avoid bending your wrists or put pressure on them
* The work in a “neutral” position (about half-way through the range of movement for the common)
* Use as easy as pressing a button possible
* When you move the mouse, with your whole arm not only the wrist or elbow

Keyboard

* You should be able to work comfortably with your elbows to your sides
* Lower arms should be extended to about a ninety-degree angle to the upper arms
* With a wrist rest can be problematic – avoid pressure on the underside of the wrist while typing
* Do not use armrests while typing, as this increases the stress in tendons and ligaments
* Keyboard should remain on a flat or slightly higher angle (0-15 degrees)

Mouse

* Function and use the mouse as close as possible itself (next to the keyboard is ideal)
* Keep the wrist straight and relaxed
* Use your whole arm when moving the mouse

Back Basics

* Try to maintain the natural “S” curve of your spine (use your backrest to support your lower back)
* Insert fully in your chair with his back firmly against the backrest
* Shift your position from time to time to avoid fatigue

Chair

An adjustable chair is necessary for any joint work to users of different sizes. After an ergonomic chair is important if the user is spending the majority of its working day with a computer. So what is an ergonomic chair?

* It should have five legs for stability
* Height should be adjustable (in the range of 15-21 inch for most users)
* The seat pan should have a depth of 17-20 inches (deeper for people bigger flat for shorter people). The user should be able to fully back into the chair with lumbar spine (lower back) region back to contact with the backrest and the rest on foot flat on the ground. The leading edge of the seat should be rounded off with a slight downward slope to prevent loss of circulation in the thighs.
* The backrest should the lumbar region and should be adjustable. Ideally, the user should the natural “S” curve of the spine. Conventional wisdom dictates that the ideal body position is an upright posture with the hips to a ninety-degree angle to the legs.
* Armrests are optional. They should be adjustable. If the arm rests on your chair will not allow you close enough to your desk, you should consider, among them. You should not rest your arms on the armrests while typing.

Working Area

Try your work area as free from clutter as possible. Keep items you use often close at hand. The work area should be stable with adequate room for an appropriate regulatory regime. It should be at least as large as the standard reception – 30 by 60 inches. Correct table height depends on many factors. 26 to 28-inch is recommended for computer workstations, but if the surface will also be used for writing on paper is the recommendation from 28 to 30 centimeters above the floor.

Leg Room

Knee room should allow the user to change the position of its legs frequently to minimize fatigue. The knee-room should be at least 30 cm wide and 19 cm depth of 27 cm high, in accordance with the requirements of the Americans with Disabilities Act. For shared workstations leg clearance should be greater than the amount of thigh and knee of the greatest person who is the station for those with a foot restraint, clearance needs to be calculated with the legs in place on the footrest.

Footrests

Footrests can be used in two different circumstances: when the user’s feet do not rest flat on the ground after a workstation is properly adjusted, or if the seat compresses the back of the legs to limit traffic. In the latter case, the footrest can be used to help repeal the back of the thigh slightly from the seat to allow more blood flow.

Exercise / Breaks

* Eye Breaks – looking at a computer screen for long periods of time causes some changes in his eyes, like the work, what you have to blink less often, and is more of the eye surface to air caused drought. Every 15-20 minutes, you should look away from the screen for a while, preferably on an object 20 or more meters away. This allows your eyes to relax and get back to a more natural plane. Blink your eyes rapidly for a few seconds. The refreshed the tear film and dust clears from the eye surface.
* Micro-breaks – most of the entry is made in blocks rather than continuously. Between these bursts of activity should rest your hands in a relaxed, flat, straight posture. During a micro-short break, you can stretch, stand up, move or perform another task (such as a telephone). A micro-fracture is not necessarily a break from work, but it’s a break from using a specific set of muscles, makes the most of the work.
* Breaks – all 30-60 minutes you should receive a short break. During this break up, move and do something else. Get a drink of water, soda, tea, coffee, or whatever. This allows you to rest and exercise different muscles and you feel less tired.

Here are a few exercises you can try to alleviate stress and promote relaxation.

Relax your hands and wrists try the following:

* Make a tight fist, hold for a second, then stretch your fingers wide and hold for five seconds. Repeat.
* With the outstretched arms in front of you, raise and lower your hands by bending it at the wrist (as if you interact, “goodbye”, but slower). Then rotate your hands ten times in the air with open palms to the outside (as if you delete something from a table).

For the back, arms and shoulders:

* While sitting on the desk or work, stretch your shoulders, arms and ribcage by overhead as far as possible and for a few seconds. Holding your arms over your head, interlocking the fingers of both hands and turn upper body slightly to the left and right.
* Even in the seats, you can relieve tension in your neck and shoulders by turning your head slowly from side to side. Other neck stretches are tilting your head on your shoulders and lowering your chin on the chest.

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