Ergonomic Causes Of Disorders:
Usually, Ergonomic Causes of disorders is the out come of the alignment between the user and the computer components and accessory devices which is not proper. This makes it difficult for the user to maintain good postures, such as straight wrists, elbows close to the body, and head straight and in -line with the torso. Let's see a few instances that we face in our everyday life to which Ergonomic Causes occurred out of such misalignment:
Ergonomic causes: Contact Stress
There are two types of contact stress type of Ergonomic causes - internal and external. When a tendon, nerve, or blood vessel is stretched or bent around a bone or tendon, you suffer from internal contact stress.
When a part of your body rubs against a component or device in the workstation, like chair seat pan or the desk edge, you are said to be suffering from external contact stress. This may lead to irritation of the nerves or contraction of the blood vessels.
You can solve such Ergonomic causes by carefully selecting wrist rests, chairs, and desk surfaces as well as by taking frequent rest and stretch breaks to minimize the amount of contact stress that you may experience. Your workstation should be adjusted in such a way as to maintain neutral wrist postures.
Ergonomic causes: Force
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.
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.