Repetitive and prolonged use of a computer keyboard and/or mouse can lead
to muscle aches and discomfort. Posture and positioning are important. Try
to incorporate the following tips into your work style to avoid problems.
Maintain good posture when working. Sit all the way back in the chair against the backrest. Keep your knees
equal to, or lower, than your hips with your feet supported.
Keep
your elbows in a slightly open angle (100° to 110°) with your wrists in a
straight position.
The keyboard tilt can help you attain the correct arm position. A negative
tilt (front of keyboard higher than back) helps when working in upright
sitting positions. If you recline, a positive tilt (front of the keyboard
lower than the back) might be necessary.
Avoid
overreaching.
Keep the mouse and keyboard within close reach. Center the most frequently
used section of the keyboard directly in front of you.
Center the monitor in front of you at arm's length distance and position the top of the monitor 2” to 3”
above seated eye level. You should be able to view the screen without
turning or tilting your head up or down.
Place
source documents on a document folder positioned between your monitor and keyboard. If there is
not enough space, place documents on an elevated surface close to your
screen.
Use
good typing technique. Float your arms above the keyboard
and keep your wrist straight when keying. If you use a wristrest, use it
to support your palms when pausing, not while keying.
Hit
the keyboard keys with light force. The average user keys four times harder than necessary.
Keep
your wrists straight and hands relaxed when using your pointer. Don't hold the pointer with a tight
grip or extend fingers above the activation buttons. Avoid moving the
pointer with your thumb or wrist. Movement should originate at your
shoulder and elbow.
Limit
repetitive motions.
Reduce keystrokes with macros and software programs such as voice
recognition. Reduce pointing device movement with scroll locks and
keystroke combinations.
Customize your computer settings. The screen font, contrast, pointer size, speed, and color can be
adjusted to maximize comfort and efficiency.
Reduce glare.
Place your monitor away from bright lights and windows. Use an optical
glass glare filter when necessary.
Take
eye breaks and
intermittently refocus on distant objects. Try palming your eyes in your
hands to reduce eye fatigue.
Work
at a reasonable pace and take frequent stretch breaks.
Take 1 or 2 minute breaks every 20-30 minutes, and 5 minute breaks every
hour. Every few hours, try to get up and move around.
Use
of non-prescribed medications, or wrist splints, can often be more harmful
than helpful.
If you begin to develop symptoms, seek help. Early intervention can
prevent future problems.
Your
life style and physical fitness affect how you feel at work.
Stay in shape by stretching and exercising regularly. Stretches and
exercises can be found on our website.