Instruction manual

viii Preface
Table 1 Recommendations for Proper Setup and Use
Adjust So that …
Chair
1 Feet are flat on the floor or footrest, if needed.
2 Legs are vertical forming a right angle to the floor.
3 Your weight is off your thighs and are in a horizontal
position. Keep the back of your knees away from the
seat so you do not compress the area behind them,
which could restrict the blood flow.
4 Your upper body is erect and your lower back is
supported with a backrest.
Keyboard
5 Your wrists are straight and do not flex more than
15°. They may be supported but should not rest on
sharp edges.
6 Upper arms are straight down at your sides, elbows
are close to your sides and support your arm weight.
Forearms are at a 70° to 90° angle.