Back Pain in Office?
Sitting in office chairs for prolonged periods
of time can be a major cause of back pain. Sitting is a static posture
that can cause increased stress in the back, neck, arms and legs,
and can add a tremendous amount of pressure to the back muscles
and spinal discs.
Additionally, sitting in a slouched-over or
slouched-down position in a chair can overstretch the spinal ligaments
and strain the spinal discs.
Besides being uncomfortable, over time poor sitting posture and
workplace ergonomics can damage spinal structures and contribute
to recurrent episodes of back pain.
Here are some important guidelines to help
make sure that your office chair and work area is as comfortable.
Elbow measure
Begin by sitting comfortably as close as possible to your desk so
that your upper arms are parallel to your spine. Rest your hands
on your work surface (e.g. desktop, computer keyboard). If your
elbows are not at a 90-degree angle, move your chair either up or
down.
Thigh measure
Check that you can easily slide your fingers under your thigh at
the leading edge of the chair. If it is too tight, you need to prop
your feet up with an adjustable footrest. If there is more than
a finger width between your thigh and the chair, you need to raise
the desk/work surface so that you can raise your chair.
Calf measure
With your buttocks up against the chair back, try to pass your clenched
fist between the back of your calf and the front of your chair.
If you can't do that easily, the chair is too deep. You will need
to adjust the backrest forward, insert a lumbar support, or get
a new office chair.
Lower-back support
Your buttocks should be pressed against the back of your chair,
and there should be a cushion that causes your lower back to arch
slightly so that you don't slump forward as you tire. This support
is essential to minimise the load (strain) on your back. Never slump
or slouch in your chair, as that places extra stress on your spine
and lumbar discs.
Eye level
Close your eyes while sitting comfortably with your head facing
forward. Slowly open your eyes. Your gaze should be aimed at the
center of your computer screen. If your computer screen is higher
or lower than your gaze, you need to either raise or lower it.
Armrest
Adjust the armrest of your chair so that it just slightly lifts
your arms at the shoulders. Use of an armrest on your office chair
allows you to take some of the strain off your neck and shoulders,
and it should make you less likely to slouch forward in your chair.
Try to remember to stand, stretch and walk
for at least a minute or two every half hour. Moving about and stretching
on a regular basis throughout the day will help keep your joints,
ligaments, muscles and tendons loose, which in turn will help you
feel more comfortable, more relaxed and more productive.
|