Keyboard and Mouse Position: Build One Close Input Zone for Relaxed Shoulders and Usable Wrists
Keyboard and mouse position should be planned as one close input zone, not as two separate device decisions. Start from a supported sitting position with relaxed shoulders and elbows near the body, then place both inputs at a compatible height, distance, and orientation. Keyboard width, numpad use, tray capacity, desk height, and front-edge thickness can