Computer Mouse

Can using a mouse cause injuries?
Users of the computer mouse often experience sore fingers, wrists, arms and shoulders. Although there are not many studies on mouse use, ergonomists indicate that the design of the mouse, where you place it on your desk, and how you use it can prevent discomfort and fatigue.

Where should you place the mouse?
The computer mouse is most commonly used in combination with a keyboard. Computer users usually place the mouse to the side of and ahead of the keyboard. This causes users to stretch their arms and shoulders creating discomfort and fatigue.

Wrong Positioning


Correct Positioning

One way to reduce discomfort and potential injury is to place the mouse at the same level and as close to the side of the keyboard as feasible. The mouse and keyboard should be on the same work surface. There should be enough room to work the mouse so that variation in arm position is possible.
Make sure that the mouse cord does not hinder any movements. Always use a pad designed for the computer mouse and make sure it stays clean. The work surface should be set up in a way that also accommodates left-handed people.

Here are suggestions about the proper way to use a mouse and to avoid discomfort and fatigue:

• Don't squeeze the mouse. Hold it loosely in your hand and relax your grip. A tight grip will not help to position the pointer any more accurately or quickly.
• Keep your wrist straight. Your forearm, wrist and fingers should all be in a straight line.



• Adjust the mouse speed setting. The mouse is harder to control if you use a fast setting. Some computer users also get relief from using the mouse by using keystroke combinations as short-cuts for various computer program functions.