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Are you sitting at your desk properly?

Are you sitting at your desk properly?

What is the correct posture for sitting at your desk?

sitting at your desk at a computer for long periods of time can take a toll on your body. By not sitting with the correct posture, it is easy to end up with back pain, neck pain, knee pains, and a tingling of the hands and fingers. Here are some tips on maintaining good ergonomics and staying comfortable at your desk during the day. Note: A 2006 study indicated that rather than an up-right position a more relaxed one at 135 degrees is suggested to relieve lower back pain.

We see too many workplace injuries that could be avoided. And prevention is better than cure. Here is a check-list that you can carry out at your workstation, to make sure you’re comfortable, safe and productive while sitting at your desk in your office.

 

 

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Sit up tall. Push your hips as far back as they can go in the chair. Adjust the seat height so that your feet are flat on the floor and your knees equal to, or slightly lower than, your hips. Adjust the back of the chair to a 100°-110° reclined angle. Make sure that your upper and lower back are supported. If necessary, use inflatable cushions or small pillows. When your chair has an active back mechanism use it to make frequent position changes. Adjust the armrests so that your shoulders are relaxed, and remove them completely if you find that they are in your way.

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Sit close to your keyboard. Position it so that it is directly in front of your body. Make sure that the keys are centered with your body.

  • Push your hips as far back as they can go in the chair.
  • Adjust the seat height so your feet are flat on the floor and your knees equal to, or slightly lower than, your hips.
  • Adjust the back of the chair to a 100°-110° reclined angle. Make sure your upper and lower back are supported. Use inflatable cushions or small pillows if necessary. If you have an active back mechanism on your chair, use it to make frequent position changes.
  • Adjust the armrests (if fitted) so that your shoulders are relaxed. If your armrests are in the way, remove them.

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Adjust the keyboard height.
Make sure your shoulders are relaxed, your elbows are in a slightly open position, and your wrists and hands are straight.

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Adjust the tilt of your keyboard based on your sitting position. Use the keyboard tray mechanism, or keyboard feet, to adjust the tilt. If you sit in a forward or upright position, try tilting your keyboard away from you, but if you are slightly reclined, then a slight forward tilt will help to maintain a straight wrist position.

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Use wrist rests. They will help maintain neutral postures and pad hard surfaces. The wrist rest should only be used to rest the palms of the hands between keystrokes and not while typing. Place the mouse or trackball as close as possible to the keyboard.

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Position your monitor properly. Adjust the monitor and any source or reference documents so that your neck is in a neutral, relaxed position. Center the monitor directly in front of you, above your keyboard. Position the top of the monitor approximately 2-3” above your seated eye level. If you wear bifocals, lower the monitor to a comfortable reading level.

  • Sit at least an arm’s length away from the screen and adjust the distance for your vision. Reduce any glare by carefully positioning the screen, which you should be looking almost straight at, but partially looking down. Adjust any curtains or blinds as needed. Adjust the vertical screen angle and screen controls to minimize glare from overhead lights.

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Position the source documents directly in front of you, and use an in-line copy stand. If there is insufficient space for that, place the documents on a document holder positioned adjacent to the monitor. Place your telephone within easy reach. Use headsets or a speaker phone to eliminate cradling the handset.

Incorrect positioning of the screen and source documents can result in awkward postures. Adjust the screen and source documents so that your neck is in a neutral, relaxed position.

  • Centre the screen directly in front of you, above your keyboard.
  • Position the top of the screen approximately 2-3” above seated eye level. (If you wear bifocals, lower the screen to a comfortable reading level.)
  • Sit at least an arm’s length away from the screenand then adjust the distance for your vision.
  • Reduce glare by careful positioning of the screen.Position source documents directly in front of you, between the screen and the keyboard, using an in-line copy stand. If there is insufficient space, place source documents on a document holder positioned adjacent to the screen.
    • Place screen at right angles to windows
    • Adjust curtains or blinds as needed
    • Adjust the vertical screen angle and screen controls to minimize glare from overhead lights
    • Other techniques to reduce glare include use of optical glass glare filters, light filters, or secondary task lights
  • Place your telephone within easy reach. Telephone stands or arms can help.
  • Use headsets and speaker phone to eliminate cradling the handset.

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An articulating keyboard tray can provide optimal positioning of input devices. However, it should accommodate the mouse, enable leg clearance, and have an adjustable height and tilt mechanism. The tray should not push you too far away from other work materials, such as your telephone

  • If you do not have a fully adjustable keyboard tray, you may need to adjust your workstation height and the height of your chair, or use a seat cushion to get in a comfortable position. Remember to use a footrest if your feet dangle.

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Once you have correctly set up your computer workstation use good work habits. No matter how perfect the environment, prolonged, static postures will inhibit blood circulation and take a toll on your body.

Take small breaks during your workday to release some of that muscle tension. Studies have shown that constant sitting is very damaging to your health. Try walking around for a couple minutes, standing and doing stretches—anything to break up a full day of sitting on your bottom is good for you!

  • Take short 1-2 minute stretch breaks every 20-30 minutes. After each hour of work, take a break or change tasks for at least 5-10 minutes. Always try to get away from your computer during lunch breaks.
  • Avoid eye fatigue by resting and refocusing your eyes periodically. Look away from the monitor and focus on something in the distance. Rest your eyes by covering them with your palms for 10-15 seconds. Use correct posture when working. Keep moving as much as possible.
  • Rest your eyes by covering them with your palms for 10-15 seconds.
  • Use correct posture when working. Keep moving as much as possible.

*Information supplied by UCLA Ergonomics

670px-Sit-at-a-Computer-Step-10-Version-2Exercise your hand by pushing on top of your fingers, and using backward resistance movements. Do a minimum of fifteen reps for each hand at least six times every day. This simple exercise will prevent you from developing carpal tunnel finger problems in the future. Even if you don’t have any problems right now, you may prevent pain later in life by doing a few good exercises.