In the second case, failing to maintain the forearms in a horizontal position can also trigger similar problems. This frequently occurs when users maintain their keyboards and mice on their desks instead of using a sliding keyboard and mouse tray. Prolonged use of keyboards and mice in an elevated position relative to the elbow causes wrist problems because of the continual downward bend required in the wrist. The solution to this type of hand and wrist problems is simply to use a pull-out keyboard and mouse tray that allows the user to keep the hands at the exact same height as the elbow without bending the wrist down at all during computer use.
Neck, Back, and Shoulder Problems
Prolonged computer use can also result in neck and back problems through similar mechanisms. When users fail to maintain the proper height of the computer monitor, they have a tendency to look up or down continuously for long periods of time. Both situations result in neck strain in many instances.
The simple solution is to make sure that the top of the computer monitor is level with the eyes.
Finally, prolonged computer use can also trigger back and shoulder problems. Generally, back problems are caused by desk chairs with insufficient lower back support. The resolution to these issues are often no more complicated than taking frequent breaks to increase circulation, using supportive desk chairs, and adding a foot support on the floor to ease the strain of prolonged sitting. Generally shoulder problems associated with computer use have to do with lack of efficient elbow support. The simplest solution is to make sure that the desk chair provides padded elbow support that enables the user to avoid straining the shoulder muscles holding the arms in the proper height.