Back Pain
How to Relieve Back Pain From Sitting
It is three in the afternoon, your back is aching, and you have four hours of work left and no intention of buying furniture today.

By Michael W. · Published · Specs verified
Picked on published fit specifications, not on hands-on testing. How we pick.
The short answer
Right now: stand up, walk for two minutes, and change one thing about your chair. Over the next week: fix seat height, then seat depth, then lumbar height, in that order. The immediate relief comes from movement; the lasting change comes from the setup.
This page sits under Office Chairs for Back Pain and Sciatica. If you want the fit numbers before the shortlist, start with the seat height guide and the seat depth guide.
In the next ten minutes
Nothing here costs anything and nothing requires a purchase. The goal is to change the load on the tissue that has been holding one position for hours.
- Stand up and walk for two minutes. Not a stretch, a walk. Loading the spine differently is the mechanism, and walking does it more reliably than any specific movement.
- Change your chair by one increment. Raise the seat an inch, or recline the back a notch. You are not looking for the perfect setting; you are looking for a different one.
- Put something behind your lower back. A folded towel, a cushion, a jumper. Place it at the inward curve, not at your mid-back.
- Check your feet. If they are not flat, put a box or a stack of books under them.
- Work reclined for the next hour. If your chair reclines, lean into it and move the keyboard closer. Reclining transfers load off the spine into the chair.
Over the next week: fix the setup
Immediate relief is temporary by definition, because the thing causing it is still there at nine tomorrow morning. Three changes, in this order, because each affects the next:
- Seat height. Feet flat, thighs level or sloping very slightly down. If the chair will not go low enough, use a footrest. Your target number is in the seat height table.
- Seat depth. One to two fingers of gap between the seat edge and the back of your knee, with your back against the backrest. Method in the seat depth guide.
- Lumbar height. Support at the point where your back curves inward, which you can find with your hand in about five seconds.
The complete sequence, including tilt tension and armrests, is in how to sit with lower back pain and how to adjust your office chair.
Build the movement in so you do not have to remember it
Everyone agrees you should move more often and almost nobody does it on willpower. Make the environment do the work:
- Take every call standing or walking. This alone restructures most working days.
- Keep your water somewhere that requires standing up to reach.
- Set a repeating half-hour reminder for the first fortnight, then drop it once the habit holds.
- Use two seats. A kneeling chair or a stool used for part of the day forces a different posture automatically.
The evidence base for specific intervals is thinner than the confident advice suggests. We go through what is actually published in how long should you sit in an office chair.
When a purchase is genuinely the answer
In two situations, buying something is the right call rather than a shortcut:
- Your chair physically cannot fit you. If the seat will not go low enough for your feet to reach the floor, or the pan is longer than your thigh and there is no depth adjustment, no amount of technique fixes that. Start at the body fit hub.
- Your chair has no lumbar support and no way to add it. A strapped cushion costs very little and settles the question in a week.
Outside those two, try the free changes first. They resolve more cases than the chair industry finds it convenient to admit, and we would rather tell you that than sell you something that was never going to help.
Things that get recommended and do not hold up
- Sitting on an exercise ball all day. It provides no back support, and the postural benefit people claim tends to disappear within an hour as you fatigue and slump. As a short-duration alternative seat it is fine; as a chair replacement it is not.
- A headrest as a back-pain fix. It contacts your head only when reclined and does nothing for the lumbar spine.
- Sitting bolt upright. Rigid upright posture is muscular work and it fatigues. A slight recline against a supportive backrest is easier to hold and puts less load through the spine.
- Buying the most expensive chair available. Price buys adjustment range, not fit. See are expensive office chairs worth it.
When a chair will not fix this
None of the above applies if what you have is not seated-loading discomfort. Stop and get checked if you have:
- Pain that runs below the knee, or numbness and tingling in the foot
- Weakness in a leg or foot, or a foot that catches when you walk
- Pain that wakes you at night, or that is worse lying down than sitting
- Sudden onset after a fall, a lift, or an impact
- Any change in bladder or bowel control, or numbness around the groin - this one is urgent
- Pain with unexplained weight loss, fever, or a history of cancer
Also: pain that has not improved at all over several weeks of changed setup, or that is getting steadily worse. The NIH NINDS back pain overview is the right next read.
We are not doctors, physical therapists or certified ergonomists, and nothing here is medical advice. If you are in real pain, see someone who is qualified to look at it.
Questions people actually ask
How do I stop my back hurting from sitting all day?
Change position more often, and set the chair up so a reasonable posture is the easy one: feet flat, a gap behind the knees, lumbar support at the point where you curve. The movement gives immediate relief; the setup stops it coming back tomorrow.
How often should I get up from my desk?
Published workplace guidance generally clusters around every 30 to 60 minutes, and the evidence is much stronger for "change position regularly" than for any exact interval. Pick something you will actually do.
Does a standing desk relieve back pain from sitting?
It helps because it makes changing position easy, not because standing is inherently better. Standing still all day produces its own complaints. Alternating is the version that works.
Is heat or ice better for back pain from sitting?
That is a clinical question and we are not qualified to answer it. We will not pretend otherwise to fill out an FAQ. Ask a pharmacist or a clinician.