How should you position your chair for optimal typing posture?

The correct positioning for optimal typing posture is when the upper and lower legs form a greater-than 90-degree angle. This position allows for a comfortable alignment of the body while using the keyboard. When your knees are slightly lower than your hips, it helps promote a natural curve in the lumbar region of the spine, reducing the risk of strain and discomfort during prolonged typing sessions.

Additionally, this alignment facilitates proper blood circulation in the legs and helps maintain a relaxed posture in the upper body, contributing to better ergonomic practice overall. Ensuring the legs are not straight out in front or too angled upwards minimizes tension in the hips and knees, which can be beneficial for both comfort and long-term health.

This is contrasted with incorrect angles, where the upper legs would be higher than the lower legs or positioned straight out, which can lead to tension in the knees and lower back, potentially causing discomfort and fatigue during typing tasks.