Upper body posture depends on the monitor position and input devices such as keyboards and pointing devices. Monitors are to be positioned in the proper viewing distance, around two feet, and also height adjustable. To reduce eye strain, it is better to set the monitor in such a way that glare is prevented. Keyboards Most importantly, it is crucial to have the right keyboard which does not force your hands into an awkward position or have wrists bent when typing. Using a keyboard can affect the wrists, forearms, neck, shoulders and back directly, and other parts of the body indirectly.
Experts say the keyboard slope is an important issue too.
The ultimate preferred slope is related to your hand length and stature. It has been determined through experiments that most people prefer a 15 degree sloping of their keyboard from the table upward, the angle measured from the top of the desk to the slope of the keys.