3-4 User’s Manual
Getting Started
Seating and posture
Maintain a comfortable working posture when using your PC where your
body joints are naturally aligned to reduce stress on different parts of your
body. Consider the following:
Figure 3-1 Posture and positioning of the computer
■Keep hands, wrists, and forearms straight, in-line and roughly parallel to
the floor.
■Keep head level, or bent slightly forward, forward facing, and balanced.
Generally the head is in-line with the torso.
■Keep shoulders relaxed and let upper arms hang normally at the side of
the body.
■Keep elbows in close to the body and bent.
■Keep feet fully supported by floor or foot rest.
■Keep back fully supported with appropriate lumbar support when sitting
vertical or leaning back slightly.
■Keep thighs and hips supported by a well-padded seat cushion and
generally parallel to the floor.
■Keep knees about the same height as the hips with the feet slightly
forward.
Foot rest
Below eye level
90°angles