How to Adjust Your Office Chair to Stop Back Pain

Step 1: Set the Correct Seat Height

First, stand in front of your chair. Adjust the height so the highest point of the seat is just below your kneecaps. When you sit down, your feet should rest flat on the floor with your knees bent at a 90-degree angle. If your desk is too high and forces you to raise the chair, use a footrest to keep your feet supported.

Step 2: Adjust the Seat Depth

Sit all the way back in your chair so your spine is supported by the backrest. Check the gap between the edge of the seat and the back of your knees. You should be able to fit about two to three fingers (roughly 2 inches) of space there. If the seat is pressing against the back of your knees, it can restrict blood flow.

Step 3: Position the Lumbar Support

Your lower spine has a natural inward curve. Your chair's lumbar support should fit snugly into this curve. Adjust the height of the lumbar pad so it sits right at the small of your back (just above your belt line). It should feel supportive but not push your lower back forward aggressively.

Step 4: Set the Backrest Recline and Tension

Sitting perfectly upright at a 90-degree angle can actually put excess pressure on your spine. Instead, set your backrest tilt to a slight recline of about 100 to 110 degrees. Adjust the tension knob so you can lean back comfortably without feeling like you are falling, but with enough resistance that you aren't forced to hunch forward.

Step 5: Align the Armrests

Adjust your armrests so that your shoulders are relaxed and your elbows sit at a 90-degree angle. Your forearms should rest lightly on the armrests without your shoulders being shrugged upward or sagging downward. If the armrests prevent you from sliding close to your desk, lower them or remove them entirely.

Pro-Tips for Long-Term Comfort

• Take microbreaks: Even the most ergonomic chair won't save your back if you sit for hours straight. Stand up and stretch for 2 minutes every hour.
• Check your monitor height: The top of your screen should be at or slightly below eye level to prevent neck strain.
• Keep your keyboard close: Pull your keyboard and mouse close enough that your elbows remain bent at your sides.