Usually, when we talk
about force, it is thought of as a strenuous physical exertion, such as when
lifting a heavy weight or pushing a heavy load. In computer parlance, force is
totally different from the usual definition. Computer work seldom requires this
type of laborious exertion, but there are tasks that require concentrated force
that can affect smaller, localized muscle groups.
For instance.
1) Pretend you are using
a pointing device that is too sensitive that you find it so difficult to
control leading to a Ergonomic causes. There are all chances that your finger
and forearm muscles become sore because the muscles of hand and arm must work
hard continually to keep the device steady.
2) Pretend your mouse is
placed very far from you that you have difficulty reaching for it every time.
This time what really happens is that your shoulder and neck muscles become
strained as they are continually being used to lift the arm away from your
body.
3) Pretend your monitor
is kept very high from the recommended height. You tend to tilt your head back
to get a clear view of the monitor. This time the muscles of your back can
become strained due to continued use.
Normally, when injuries
happen, the first point of pain is the muscle. But, the tendon, which attaches
the muscle to bone, can also be affected. Localized pain, stiffness, and
tenderness are some of the symptoms showing that the muscle or tendon has been
exerted beyond its capacity.
If you arrange the
computer and associated components in your workstation properly and
appropriately, so as to maintain neutral postures, you can avoid such problems
to a large extend. Select adjustable furniture so that you can minimize the
amount of time spent in one posture.
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