Office Chair Backrest Adjustment

Office chair backrest adjustment can be carried out in terms of seat depth, seat height, recline angle, and rebound force to enhance comfort and healthy support.

Seat Depth Adjustment: Adjust the seat depth to be slightly shorter so that the thighs are fully supported on the seat, leaving a two-finger gap behind the knees. The lumbar support should be aligned with the third lumbar vertebra. When leaning back, the pelvis should tilt slightly forward, and the thighs should be kept at a 95-degree angle to the horizontal plane. This posture reduces lumbar pressure, allows the gluteal muscles to relax naturally, and prevents lower back fatigue and injury caused by improper sitting posture.

Seat Height Adjustment: The seat height of some office chairs can be adjusted. When adjusting, ensure that the thighs and lower legs form two 90-degree angles. On this basis, adjust the backrest and lumbar support so that the lumbar support just supports the sacrum. The correct seat height and lumbar support position ensure that all parts of the body are reasonably supported, maintaining the natural physiological curve of the spine and preventing problems such as scoliosis.

Recline Angle Adjustment: For some executive chairs, the backrest recline adjustment method is as follows: Find the adjuster under the chair, pull it upward while applying force to the backrest to tilt the chair back. Do not release your hand until the appropriate tilt angle is reached, and continue to apply force to the backrest. Release the hand controlling the adjuster after reaching the desired tilt angle. An appropriate recline angle can relieve the pressure caused by leaning forward and allow the body to relax during rest.

Rebound Force Adjustment: There may be a backrest rebound force adjustment knob at the bottom of the office chair. Turning it clockwise increases the rebound force. Adjust the appropriate rebound force according to your body weight and usage habits so that the backrest provides proper support when leaning back, avoiding discomfort caused by a backrest that is too hard or too soft.