• Forearms held horizontally,
elbows bent about 90 degrees
(right angle) or slightly greater,
with your shoulders and upper
arms relaxed
• Wrists in a neutral (straight)
posture
• Head upright over your shoulders
in a relaxed position, with your
eyes looking slightly downward
• Backrest supporting your lower
back, pelvis, and the natural
curve of your spine
• Thighs resting horizontally with
a 90–110 degree angle at the hips
• Feet fully supported by the floor
or a footrest
The illustrations o