Rested on a head cushion with ears aligned to shoulders.
Kept in neutral position (i.e. not bending forwards/backwards).
3) SHOULDERS & UPPER BACK
Rest upper back on chair, pull shoulder blades together, and release to natural position.
4) ARMS & ELBOWS
Forearms flush on armrest, with elbows bent at 90 to 100 degrees.
5) LOWER BACK
Lumbar should rest comfortably against support while sitting in upright/slightly reclined position.
6) LEGS & KNEES
Feet should rest flat on floor, with thighs flush against the seat and knees bent at 90 degrees.