What is the best height for my keyboard and mouse device?
The “best” height will vary, depending on the individual. Generally, the preferred height will be in the range of 24-29″ but there are no hard and fast rules. Instead, by knowing the desired posture you should have, you can set the height according to your exact needs. When you are seated in your chair, your feet should be flat on the floor (or footrest), your back should be in contact with the backrest and the shoulders relaxed. When working at your keyboard, your arms should be in a non-reaching position (i.e. elbows in close to the waist), the forearms roughly horizontal and the wrists straight. The mouse device should be situated very close to the keyboard, at about the same height. When using the mouse, the arm should be maintained in a non-reaching position (elbow in close to the body) and avoid “planting” the wrist on the surface when manipulating the mouse. Instead, try to use the larger muscles of the upper arm to do this work.