Devices: History, News and Lifestyle

Ergonomic Tips for Healthy Typing

Ergonomic Tips for Healthy Typing
Ergonomic Tips for Healthy Typing

Ergonomic Tips for Healthy Typing

Warning: Computing Can Be Hazardous to Your Health

If you type 50 words a minute for an hour, you’ll have pecked out some 18,000 keystrokes. Keep that up all day, five days a week, and you’re giving your digits and writs a hard-core workout. Typing’s repetitive movements can lead to muscle strain, pain and weakness in the hands, arms and wrists – all of which are signs of carpal tunnel syndrome and other repetitive stress injuries (RSI). And that’s not all. A bad chair or posture can cause back and neck strain, and staring at your monitor is a great way to give yourself a pounding headache, not to mention ruin your eyes.

Preventing Repetitive Stress injuries

Behavior Modification:

  • Make sure that your keyboard is lower than your elbows; your wrists should be slightly higher than your fingers.
  • Don’t over-curl your fingers, drop or twist your wrists – you’ll put too much stress on your hands’ muscles and tendons. When you’re at the keyboard, keep your fingers just slightly curled and sit up straight.
  • Avoid tendonitis in the elbow (also known as tennis elbow) by making sure that your arms rest comfortably on the armrests of your chair and that your elbows do not jut out at an awkward angle. Ideally, your elbows should bend at 90 degrees. The best chairs let you adjust the armrests to fit your body size.
  • Do you peck at the keyboard, using only a few fingers to do all the work? This can cause muscle strain. Learn to touch-type and you’ll reduce the pain and double your typing speed.
  • Take plenty of breaks (at least five minutes every hour).

Products to try:

Investing in a wrist-rest – a device that elevates your hands so that your wrists remain straight while typing – is a great way to help prevent RSI. They range from the simple (a foam pad) to the sophisticated (plastic shackles). Wrist-rests are sold at many computer stores. Don’t want to spend the dough? Try a rolled up towel instead.

Dozens of keyboards claim to be ergonomic, and some of them actually deliver on that promise.

Three common incorrect practices and their symptoms:

Twisting: Long muscles forced to stretch around elbow, stressing muscles in hands and arms. Symptoms: Elbow inflammation, throbbing forearm, loss of dexterity in ring and little fingers.

Over-curled fingers: Continuously flexed muscles that contract cause nerve compression in the wrist. Symptoms: Pain in the wrist and forearm, tingling or numbness in the fingers.

Dropped wrists: Tendons press against the nerves in the wrist weakening the thumb, index and ring fingers. Symptoms: Numbness, tingling in the fingers at night, swelling of wrist and/or thumb.

Preventing Eye strain

Behavior modification

Keep at least 20 inches between your eyes and monitor, and adjust the monitor’s angle so that you don’t have to crane your neck to look at the screen. If you wear bifocals, adjust your monitor so that you’re looking down.

The light that you work by should be diffuse and overhead. A light source coming from the side, or worse, from behind, will make you squint; over time, you’ll develop headaches from eyestrain.

It sound kinds of obvious, but have you adjusted the brightness and contrast on your screen? This often overlooked solution can save you from squinting at a screen that is either too dim or too bright.

Contact lenses may cause eyestrain in people who stare at a computer screen for hours on end. Try using your glasses instead. Photo-sensitive lenses soften the glare from the screen.

Products to try: Nothing is harder to look at than a bright monitor; it can cause headaches as well as eye strain. If you monitor’s screen is flickering, it’s causing strain on your eyes. A monitor that flickers usually has a low vertical refresh rate, s high dot pitch, or another problem. It’s probably time to get a new monitor.


See also


Ergonomic Tips for Healthy Typing

Ergonomic Tips for Healthy Typing

Ergonomic Keyboard

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