Toshiba Tecra A4 (PTA40) - Manual (Page 65)

User’s Manual 3-3
Getting Started
Seating and posture
The height of your chair in relation to the computer and keyboard as well as
the support it gives your body are primary factors in reducing work strain.
Refer to the following tips.
Posture and positioning of the computer
■ Place your chair so that the keyboard is at or slightly below the level of
your elbow. You should be able to type comfortably with your shoulders
relaxed.
■ Your knees should be slightly higher than your hips. If necessary, use a
foot rest to raise the level of your knees to ease pressure on the back of
your thighs.
■ Adjust the back of your chair so it supports the lower curve of your
spine.
■ Sit straight so that your knees, hips and elbows form approximately
90 degree angles when you work. Do not slump forward or lean back
too far.
Foot rest
Below eye level
90°angles