What backrest recline angle is best for an ergonomic chair during work?

Research supports a backrest angle of 100°–110° from vertical as optimal for spinal disc pressure during seated work — slightly reclined, not bolt upright. A perfectly vertical (90°) backrest actually increases lumbar disc compression compared to a slight recline. For active typing tasks, 100°–105° is ideal; for reading or reviewing, 110°–115° reduces neck load. A tilt lock that holds these angles during work lets you settle into the right position without constantly fighting to stay in place. FindOfficeFurniture.com has ergonomic chairs with proper tilt range and lock — call 888-719-4960.