Office Chair Headrest Too High

If the headrest of an office chair is too high, it can be improved by adjusting sitting posture, operating the adjustment mechanism, and checking for proper fit. Short users should pay attention to compatibility when purchasing.

Hazards of a Headrest That Is Too High

A headrest that is too high forces the head to tilt forward and the chin to jut out, causing excessive forward flexion of the cervical spine. This keeps the posterior cervical muscle group continuously stretched and tense, which can easily lead to muscle strain over time, resulting in neck pain and stiffness. It may even cause the natural lordotic curve of the cervical spine to straighten, developing into a "reverse curve" and increasing the risk of nerve and blood vessel compression.

Criteria for Determining if the Headrest Is Appropriate

The headrest should firmly support the lower cervical spine (the base of the neck near the shoulders), not the back of the head. When sitting upright, the distance between the back of the head and the headrest should be kept at about two finger widths (no more than 4 centimeters), and the center point of the headrest should be level with or slightly higher than the top edge of the ears.

Methods for Adjusting the Headrest

1. Adjust Basic Sitting Posture: Keep your buttocks fully pressed against the backrest, feet flat on the ground, and thighs parallel to the ground. Adjust the seat back to an upright or slightly reclined position (recommended 100°–110°) to ensure that the head, neck, and back are roughly in a straight line. Avoid adjusting while slouching, as this will cause the headrest position to be inaccurate when sitting upright.
2. Operate the Adjustment Mechanism: Most adjustable headrests have a plastic unlock button located below the side support rod. To adjust, press and hold the button with one hand while supporting the headrest with the other hand, lifting it up or pressing it down to the desired height. For upward adjustment, simply lift; for downward adjustment, press the button and then push down.
3. Check and Confirm: When looking straight ahead, the softest part of the headrest center should be level with the top edge of the ears, or the top of the headrest should be about 5 to 10 centimeters above the top of the head. Check the gap between the back of the head and the headrest with your hand; the ideal distance is about two finger widths. Gently shake the headrest to confirm that it is securely locked, with both pins inserted to the same depth and no front-to-back looseness.

Notes for Short Users

Ergonomic chairs were originally mostly imported products, designed with reference to an average height higher than that of the local population. Therefore, short users (e.g., those under 160cm in height) may find that the lowest position of most headrests is still higher than the cervical support point. When purchasing, read the product description carefully, compare the lengths of various parts with your own height, and prioritize models with a wide adjustable range. If there is a physical store, it is advisable to try sitting in the chair before making a decision.