21 Feb

Computer Effect !!!

Posted Februari 21, 2011 by gasyudha in Uncategorized. Tinggalkan sebuah Komentar

If we use a computer for many hours (as people often do at work), there are some health issues that might affect us… Eye-Strain One health issue that can occur after using computers for a long time is eye-strain (tiredness of the eyes).

This is caused by looking at a monitor which is a constant distance away. The muscles that focus your eyes do not move, and so get tired and painful. Eye-strain can also cause headaches.

This problem can be solved:

Look away from the monitor at regular intervals – re-focus on distant or close objects to exercise the muscles in the eye.
Take regular breaks.
Use an anti-glare filter in front of the monitor to cut down on screen reflections that can also tire the eyes.

Back and Neck Ache

Many people suffer from back and neck pain after working at a computer for a long time. This is usually due to them having a bad sitting posture. This problem can be solved:

Use an adjustable, ergonomic chair, and take the time to set it up properly.
The computer keyboard and monitor should be at the correct height for the seated person (keyboard lower than the elbow, top of monitor at eye level).
Take regular breaks: get up, walk around, stretch your muscles

Bad Posture Good Posture Repetitive Strain Injury (RSI) in Wrists and Hands Any repetitive movement (same movement over and over again) can result in a health problem called repetitive strain injury (RSI). In particular, typing and using a mouse for long periods are common causes of RSI in the wrist (it is often called carpal-tunnel syndrome). This problem can be solved:

Use a wrist-rest to support the wrists while typing and when using the mouse.
Take regular breaks from typing or using the mouse.

Prevention is better than cure

Several relativly straightforward precautions can be taken by computer users to avoid problems. Avoiding Musculoskeletal problems General precautions to avoid musculoskeletal problems include:

Taking regular breaks from working at your computer – a few minutes at least once an hour
Alternating work tasks
Regular stretching to relax your body
Using equipment such as footrests, wrist rests and document holders if you need to
Keeping your mouse and keyboard at the same level
Avoiding gripping your mouse too tightly – hold the mouse lightly and click gently
Familiarise yourself with keyboard shortcuts for applications you regularly use (to avoid overusing the mouse)

It is also important to have your workstation set up correctly. Your workstation includes monitor, keyboard, mouse, seating, desk, and where appropriate, footrest (to enable you to put your feet flat if they would otherwise not reach the floor), wrist rest, and document holder. Monitors should:

Swivel, tilt and elevate – if not use an adjustable stand, books or blocks adjust the height
Be positioned so the top line of the monitor is no higher than your eyes or no lower than 20° below the horizon of your eyes or field of vision
Be at the same level and beside the document holder if you use one
Be between 18 to 24 inches away from your face

Keyboards should:

Be detachable and adjustable (with legs to adjust angle)
Allow your forearms to be parallel to the floor without raising your elbows
Allow your wrists to be in line with your forearms so your wrists does not need to be flexed up or down
Include enough space to rest your wrists or should include a padded detachable wrist rest (or you can use a separate gel wrist rest which should be at least 50 mm deep)
Be placed directly in front of the monitor and at the same height as the mouse, track ball or touch pad

Chairs should:

Support the back – and have a vertically adjustable independent back rest that returns to its original position and has tilt adjustment to support the lower back
Allow chair height to be adjusted from a sitting position
Be adjusted so the back crease of the knee is slightly higher than the pan of the chair (use a suitable footrest where necessary)
Be supported by a five prong caster base
Have removable and adjustable armrests
Have a contoured seat with breathable fabric and rounded edges to distribute the weight and should be adjustable to allow the seat pan to tilt forward or back

example :

Number 10 – Vitra Headline fashion chair

This chair was included in our top for its incredible looks.  Being a creation of Mario and Claudio Bellini, the Vitra headline looks  like it was made out of just two parts: the seat and the back that  includes the head rest.


Vitra Headline fashion ergonomic chair

The accent was put on aesthetics and ergonomics, the chair having an innovative backrest construction that relieves the spine and allow you to relax, while working on your PC. With this new support for head, neck and back, you won’t get tired anymore, so that’s why the chair should be recommended to those people spending a lot of time in their offices.

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And, to make everything perfect, I would accompany the Headline with a matching computer, probably one of the latest Apple MacBook Pro notebooks.

Number 9 – Kneelsit swivel-chair

Kneelsit is a groundbreaking computer chair, well received by the public and appreciated by scientific and medical groups for it’s ergonomic properties.

Kneelsit has some kind of swivel-axe mechanism that  makes it superior to other chairs, allowing you to sit comfortably for  hours. The producers claim that whenever you use this chair, you will be  comfortably balanced and have a good posture, keeping your spine health.


Knee before your computer

Besides the ergonomic aspect, the Kneelsit also is durable and stylish. The soft black leather upholstery, together with the steel frame, assures us that this chair is both comfortable and durable. And it would better be, cause it costs around 750 euros for the European market (800 $ for US).

Personally, I found it odd. It’s a little bizarre to sit before your  computer virtually in your knees, don’t you think? But, I must agree I  haven’t really seen or tried one of this things in real life, and from  what other people say I must give it some well deserved credit.

Number 8 – the BMW side-seat

This one is a little old, but still pretty expressive, as it is hand  made by this guy and it didn’t cost a fortune. Like many of us, he used  to spend a lot of time in front of his PC and needed a comfortable chair. So, he decided to make it from scratch.


Used to be a BMW seat, now it is a computer chair

The centerpiece of the project is a beautiful passenger-side seat from a BMW car, that he found in a Junkyard. Coming from a luxury car, the seat has lots of electrics, including buttons for adjusting it for the ultimate comfort. This piece of jewelry was placed on a piece  on plank-wood and screwed tight to it. And that’s it. You just place it  in front of your desk. I agree, maybe it’s not the best looking chair  ever or the easiest to move around, but I’m sure it’s comfortable.

Number 7 –  Ultimate Shiatsu Massage Chair (1.799$)

I admit, this one is more an office chair than a computer one, but since most of us have a PC on our word-desk, I squeezed it in.

Like it’s name says, Shiatsu is the ultimate massage chair, a premium quality product, as it’s price (2700 $ ) shows. On the outside, this chair looks pretty fancy, all covered up in synthetic leather. But what’s inside is the most important part. A lot of types of massage programs can be selected from the LCD hand control, including  therapeutic soothing Shiatsu, Swedish massage, air and vibration massage  with various speed/intensity adjustments, full body stretch, etc. The  advanced body-scan technology also allows each user to create it’s personalized massage program, thus fulfilling even the most exclusive tastes.

Number 6 – self adjusting chair concept

The body posture has become a big issue among people working in  offices all day long, that’s why a chair like Aeron’s concept, that can self-calibrate its back and seat in order to provide comfort and a healthy position for every person sitting in it, would be more than welcomed in out lives.


Self adjusting ergonomic chair for the future

This chair actually meets the human tendency towards laziness,  cause every adjustment will be made automatically. Actually, the panels  of this Aeron concept would move together with your body. So, whenever  you change position, the chair’s brain would calculate its optimum shape and would execute the necessary changes in just seconds.

This concept is more than great but I can’t imagine which boss would  agree to buy this kind of chairs for its employees, as it won’t be a  bargain for sure.

Number 5 – iMedia ergonomic chair

What we have here is an ergonomic multimedia chair, brought to us by Empower Technologies. Called iMedia, this product steps in front by integrating and ergonomically designed chair with iPod docking, a 15” TF screen and a 5.1 surround sound system.

And it’s not an ordinary sound system, is the Logitech Z-5500,  with its 505 Watts RMS raw power. If you ever listened to this piece of  engineering, just imagine how it would be to sit on the 10” subwoofer,  as the chair also has a system called adjustable tactile transducer (bass shaker), that allows you not only to hear but also to feel the sounds.

The chair also features auxiliary inputs for connecting DVD players or gaming systems, for the ultimate multimedia experience.

Number 4 – Netsurfer

This thing comes all the way from Sweden and it’s called Netsurfer. The semi-reclined seating position has the neck, arms and legs all supported in such a way that it is comfortable for extended periods of Internet, game or computer usage.


Netsurfer worths 2790 $

The keyboard/mouse tray lifts to allow people sit in the chair. It’s kind of weird though that you have to sit with the computer between your legs?  I don’t think female buyers would appreciate it, especially when  they’ll wear some short skirts, but their male colleagues would  certainly do. That’s of course if they are able to pay 2790 $ for the Netsurfer.

Number 3 –   Ultimate Game Chair (569$)

The Ultimate Game Chair must be a way to heaven for  gamers. Besides being incredibly comfortable, the Ultimate Game Chair  also helps you feel like you’re a part of the action via built-in  speakers and 12 different vibration motors that are synchronized to the game.

Other features include ground effects lighting, headphone and controller jacks, beverage and remote control holders and probably the most important one, stain-resistant fabric to help  keep the chair from becoming Cheetos-orange after a few weeks.

The Ultimate Gaming Chair works with the Xbox, the Sony PlayStation 2, and the Nintendo GameCube. You can also play PC games using a USB 2.0 connection, or connect the newer consoles like Xbox 360 and Sony Playstation 3.

The chair can be bought for 399 $ (in US), and that’s not really  expensive, considering what it can do and the fact that comes with  additional joysticks.

Number 2 – G-Tech Neber chair

The G-Tech Neber ergonomic PC chair reminds me of  going to the dentist, as it makes users sit in the same reclining and  relaxing position. Not sure how comfortable it will be, but it seems pretty ergonomic and well built.

Neber also comes with support for an LCD monitor, for your keyboard  and mouse and for the PC. Thus, we’re talking more of a computer desk,  but the chair is still the center piece. Surely you won’t find something  like this in offices, but could be great for back home.

More pictures can be found here.

Number 1 – PCE Personal Computing Environments

PCE is a radical re-design of the personal workspace,  a modular and scalable platform that surrounds you with ultimate  ergonomic, computing and entertainment solutions. It turns the idea of a  gaming or computer station inside out, making players the comfortable  centerpiece of an integrated digital command center, with high performance computing, gaming and entertainment technology at their fingertips.

Features:
• Full ergonomic adjustability will accommodate any size user
• 4 speaker Surround Sound by Bose (100 watts)
• Panoramic Viewing via Dual 21” flat screens with Vibration isolation construction
• Patented C-spine workstation configuration frees up space in front of the user
• Reclining foot and leg-rest support and elevate the lower legs, improving circulation
• Fully adjustable armrests with full neoprene support surfaces for the user result in improved mouse and keyboard use with less injury
• Aircraft Aluminum frame with durable powder-coat finish ensure top quality construction
• Ergonomic chair features memory foam cushioning with gel cell inserts

Ergonomic Benefits:
• The Ergonomics and biomechanics of the human body in relation to the PCE apparatus are optimal and natural.
• The PCE user is in a reclined position with support along the entire body; the torso is supported against the back of the chair with lower back & lumbar support.
• Feet are supported by a stable footrest with an approximate 100-degree bend at the knees.
• Shoulders and upper arms are in-line with the torso, and also supported.
• The head and neck are bent slightly forward, and supported.
• Forearms, wrists, and hands are inline with forearms, 90 degrees to the upper-arm.

So that about with this chairs top. I agree they are not the most  conventional chairs and most of them are just sketches we might not seen  in practice too soon. But they are still cool, aren’t they?

Tables and desks should:

Provide sufficient leg room and preferably be height adjustable
Have enough room to support the computer equipment and space for documents
Be at least 900 mm deep
Have rounded corners and edges

Avoiding Eyestrain Precautions that can be taken to avoid eyestrain include:

Exercising the eyes by periodically focusing on objects at varying distances
Blinking regularly
Keeping the air around you moist – for example using plants, open pans of water or a humidifier (spider plants are said to be particularly good for this and removing chemical vapours from the air)
Adjusting the screen height / seating so that when sitting comfortably your eyes are in line with the top of the monitor screen
Adjusting the brightness control on your monitor for comfort
Adjusting the contrast on your monitor to make the characters distinct from the background
Adjusting the refresh rate of your monitor to stop it flickering
Positioning monitors to avoid glare (e.g. not directly in front of windows)
Keeping your monitor the screen clean
Keeping the screen and document holder (if you use one) at the same distance from your eyes
Servicing, repairing or replacing monitors that flicker or have inadequate clarity
Regular eye testing – do this at least once every 2 years and more frequently if necessary – especially if you are experiencing eye problems related to using display equipment. Indicate the distance from your eyes to the monitor to your optician and talk to them regarding special lenses or the use of bifocals.