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In 1977, Kenneth H. Olson, founder of Digital
Equipment Corporation, said “There is no reason for any individual
to have a computer in his home.” 30 years ago, maybe no one could
have predicted that computers would be everywhere. Not only in the
home, but in schools, coffee houses, hotels, and one on every desk
in the workplace. The upsurge in the numbers of computers has been
accompanied by an upsurge in the incidents of repetitive stress
injuries (RSI). Injuries so serious that, in 2003, the Bureau of
Labor Statistics says workers with tendonitis lost an average of
eleven days of work.
Most people only think of carpal tunnel
syndrome in terms of repetitive motion injuries to hands. Many
conditions actually are included in the RSI category such as:
- Tendonitis
- Tendonosis
- Tenosynovitis
- Bursitis
- Carpal tunnel syndrome
- Cubital tunnel syndrome
- Trigger finger/thumb
- Myofascial pain syndrome
- Thoracid outlet syndrome
These injuries cause pain and make even the
easiest of daily tasks difficult. Not to mention the struggle it
becomes to type on a keyboard. And the keyboard is the number one
culprit when it comes to the causes of RSI.
Buying an ergonomically correct keyboard is a
great investment into the health of your hands. You can see
immediately how they differ from a conventional keyboard. Instead of
being flat, ergonomically designed keyboards slope upwards to
accommodate a more natural hand position. These user friendly
keyboards are wider, too. This means the typist’s arms can hang more
normally. Getting a well designed keyboard doesn’t mean breaking the
bank, either. The price range starts at about $29 and goes from
there.
Next on the hit parade of likely causes for RSI
is our little friend the mouse. Users tend to grip the mouse too
hard or twist their wrists. Mice designed to reduce strain on the
hand come in all sorts of interesting shapes and styles. Some of
them are “vertical” in nature. This means your hand doesn’t have to
be always held flat, as with a traditional mouse. The thumb resting
on top of the mouse makes for a less forced wrist position. Some
ergonomically correct mice look more like joysticks. There’s even a
Zero Tension Mouse. (Gee, wonder if you could order a Zero Tension
Life with that!) One thing they all have in common, though—they look
very cool.
Since the hand bone’s connected to the arm
bone, you want to consider how your arm is supported as you work at
your computer. There are lots of nifty types of arm supports
available. Using one of these will keep you from constantly tensing
your arm and shoulder. They easily attach to your desktop or chair.
For as little as $19.95 you can save yourself a lot of aching
muscles.
In addition to using well designed equipment,
taking good care of your hands is key to avoiding RSI.
- Stretched to the limit: add hand
stretching exercises to your breaks. The soft tissues stay in
limited, rigid positions as you type. To keep those muscles,
tendons, and ligaments flexible, stretch them often.
- Warm is better than cold: soft tissues are
more vulnerable to injury when they’re chilly. Keep those hands
toasty and happy.
- Your main squeeze: don’t hold the mouse in
a death grip. What did it ever do to you?
- Lighten up: easy on the keyboard should be
your rule. Save the wear and tear on your fingers.
Mr. Olson may not have predicted how
widespread computers would turn out to be; that people would spend
hours at work and at home using one. But despite all those hours,
with the right equipment and practices, you can predict healthy
hands for years to come. |