Not all computer tasks are performed in the same way or use the same input devices. Consider your tasks and adjust your chair, monitor, keyboard and mouse accordingly. These postures are defined under the Ergonomics Guidelines, Sitting and Standing Postures' section. Performing different activities throughout the day will keep you alert, promote circulation and help your muscles stay loose. Incorporating movement into your day improves circulation and helps prevent fatigue and discomfort.
Schedule breaks throughout the day.
Perform stretches or do exercises to improve circulation. Readjust your chair and keyboard tray within specified guidelines. Keying with relaxed shoulders is better for maintaining neck and shoulder comfort. Adjust the armrests on your chair so your arms are gently supported. Adjust your keyboard height to closely match your seated elbow height.