Back pain from sitting: what the research says, how to take breaks, and when to get help

Why does sitting make your back hurt?

Back pain is common. MedlinePlus says it affects 8 out of 10 people at some point in their lives.³ The lower back is the most common site, because it supports most of the body's weight.⁴ MedlinePlus also names sitting in one position for a long time among the moments when people first notice acute low back pain.⁴

Sitting is not one cause. NIAMS lists several risk factors for back pain, and one is job-related: a desk job may play a role, especially with poor posture or sitting all day in an uncomfortable chair.¹⁰ Other listed factors are low fitness, weight gain, stress, age and heredity.¹⁰ So sitting is one piece of a picture, not a verdict.

This guide gives general information from public health sources. It does not tell you why your own back hurts. Only a clinician who examines you can do that.

What does the research say about sitting and low back pain?

Two systematic reviews, published in peer-reviewed journals, look at the question from different angles.

The first, in Health Promotion Perspectives, pooled 27 cross-sectional studies in its meta-analysis. In adults, a sedentary lifestyle was a considerable risk factor for low back pain (odds ratio 1.24), prolonged sitting time had an odds ratio of 1.42, and driving time 2.03. Among office workers the odds ratio was 1.23. The authors concluded that sedentary behavior, at work or in leisure time, goes with a moderate increase in the risk of low back pain.¹

The second review, in the Journal of Manipulative and Physiological Therapeutics, looked at studies where sitting time was measured objectively and matched to pain reports on the same day. Of 10 studies that met the criteria, all but 1 found sitting went with an immediate increase in low back pain. The authors conclude that prolonged sitting increases immediate reporting of low back pain in adults, but that no conclusion can be drawn about sitting and clinical episodes of back pain.²

Read together, the reviews say that long unbroken sitting goes with more back discomfort, and that the evidence for lasting back problems is weaker. That is why the advice below focuses on how you sit, how often you move, and when to ask for help.

How often should you break up sitting?

No source we read gives one safe sitting time. What they give are habits.

• NIAMS: when sitting for a prolonged period, get up, move around and switch positions frequently.⁵
• ODPHP: take regular breaks from sitting if you can, and if you can, switch between standing and sitting so you are not in the same position for too long.⁶
• OSHA: every hour, take a five-minute break from computer tasks, and mix non-computer tasks into the day.⁷
• OSHA: change your working position frequently, with small chair adjustments and a few minutes of standing and walking now and then.⁸
• NIAMS: on long drives, add support behind your back and stop frequently to stand up and walk around.⁵ MedlinePlus says to stop and walk around every hour when you drive a long distance.⁴

A short sum shows the scale. In an 8-hour workday, one five-minute break per hour comes to 8 breaks, or 40 minutes away from the screen. The OSHA suggestion is a break from computer tasks. NIAMS asks for a move, so a good break stands up, walks and changes position.

Cleveland Clinic suggests a timer that goes off about every 10 minutes as a reminder to check your posture.⁹ That is a posture check, not a break, but it can serve as a cue to stand when the hour is up.

A seven-day sitting log you can do at home

Your own pattern tells you more than a general rule. Try this simple log for a week. It uses a 1 to 10 pain scale, which NIAMS says doctors may use to gauge severity.⁵

1. Note the start of each sitting block. Write the time you sit down and the time you stand, in minutes. A phone clock is enough.
2. Rate your lower back from 0 to 10. Do it when you sit, after 30 minutes, after 60 minutes and when you stand. The scale is yours, not a medical measure.
3. Record what you changed. Write down a chair adjustment, a break or a short walk. OSHA lists small chair changes and a few minutes of walking as ways to change position.⁸
4. Compare day by day. Look for a time of day or a length of sitting when ratings climb. Bring the log to a clinician if you see one.
5. Stop and get advice if it worsens. A log is not a test. If the pain is severe, spreading or paired with the warning signs below, contact a health professional.

The log tells you when your back complains. It does not tell you why. For the setup side, see correct sitting posture and an ergonomic desk setup.

What can you do while the pain is acute?

MedlinePlus says acute back pain can last for a few days to a few weeks.⁴ NIAMS says most people find relief within 6 weeks.⁵ MedlinePlus says many people feel better within 1 week, and that most people improve or recover within 4 to 6 weeks.⁴

Both sources advise against long bed rest. NIAMS says to avoid bedrest, limit activities that cause pain and gradually increase activity as tolerated.⁵ MedlinePlus says bed rest is not recommended, and that if there is no sign of a serious cause you should stay as active as possible, starting with light activity such as walking.⁴

NIAMS also says exercise should be added gradually, and that you should talk to your doctor about which exercises are best for you.⁵ See the guide to lower back exercises for what orthopedic sources describe, and how to fix posture for the habits side. Cushions and supports are covered in lumbar support pillow.

For a chair that fits, see how to choose an ergonomic office chair.

What this guide cannot tell you

Neither review shows that sitting causes a back condition, and neither tests a product. A cushion, a chair or a sensor does not change that. Use a device, if you use one, as a reminder to move, not as a way to judge your back.

If the pain follows a fall, comes with other symptoms or does not improve, skip the log and contact a health professional. The next section lists the signs from public health sources.

Frequently asked questions