Abstract: Left and right fixed arm plates extend upwardly from the seat of a chair. A left movable arm plate is above the left fixed arm plate and a right movable arm plate is above the right fixed arm plate. Parallel left links couple the left fixed plate and the left movable plate in parallelogram manner. Parallel right links couple the right fixed plate and the right movable plate in parallelogram manner. A left arm rest is coupled to the left movable plate and a right arm rest is coupled to the right movable plate. A gas lift cylinder including an upper cylinder secured to the seat reciprocable within a lower cylinder. The upper cylinder is urged upwardly. A bracket rotatably couples a lower foot support to a lower cylinder. A leaf spring couples the seat and the bracket.