Ergonomic productivity workstation having coordinated and harmonized movement of head rest, backrest, seat, leg rest, arm rests, monitor support, and work trays through sitting, standing, and reclining configurations

A chair, comprising:

• a base for placement on a surface having a ground plane;
• an effective hip axis affixed to said base;
• a seat bottom that rotates about said effective hip axis;
• a seat back that rotates about said effective hip axis;
• an effective shoulder axis positionally fixed to said seat back;
• an effective elbow axis positionally fixed to said seat back;
• a monitor support configured such that a monitor mounted on said monitor support rotates about said effective shoulder axis;
• and
• an input device tray support configured such that an input device tray mounted on said input device tray support rotates about said effective elbow axis;
• wherein said chair has a sitting range of motion, a reclining range of motion, and a transition range of motion between said sitting and reclining ranges in which said input device tray and a monitor mounted on said monitor support move down and back toward said seat back and said seat bottom while maintaining a fixed angle relative to a ground plane as said seat back rotates back through said sitting range of motion.