Adjust Your Chair
Your chair should be adjustable and stable. Vary your posture throughout the day.
Check the following:
!Keep your body in a relaxed yet upright position. The backrest of your chair should support the inward curve of your back.
!Use the entire seat and backrest to support your body. Tilt the backrest slightly backwards. The angle formed by your thighs and back should be 90° or more.
!Your seat depth should allow your lower back to comfortably contact the backrest. Make sure that the backs of your lower legs do not press against the front of the chair.
