How to Ease Low Back Pain From Desk Work

Long hours at a City desk are a common trigger for low back pain. Here is what a physiotherapist recommends day to day, what to avoid, and when to get assessed.

6 min read · 1 July 2026

In this article

Why desk work bothers your back

If you spend your working day at a screen near Liverpool Street, low back pain is one of the most familiar complaints we see. It makes sense: the spine and the muscles around it are built for movement, and they do not enjoy holding one position for hours at a time. A long stretch of sitting loads the lower back in a sustained, static way, and stiffness and aching often follow.

That does not mean sitting is damaging a healthy back. It means your body is asking to move. The problem is rarely a single bad moment at the desk and much more often the accumulation of long, unbroken hours in the same posture — the pattern that shows up again and again in the histories we take.

”Non-specific” does not mean nothing is wrong

Most low back pain is what clinicians call non-specific, which means no single anatomical structure can be pinpointed as the cause. That word can sound dismissive, but it is actually reassuring. It tells us that serious pathology is unlikely and that the pain will usually respond well to the right kind of movement and a clear plan.

UK guidance from NICE (NG59) is consistent on this: physiotherapy, exercise, and self-management education are the first-line treatments for non-specific low back pain and sciatica. The same guidance explicitly advises against routine scans, opioids, and prolonged rest, because they rarely help and can get in the way of recovery. Most acute episodes settle within about six weeks with sensible management.

What actually helps during the working day

The single most useful habit is to break up long periods of sitting. There is no one perfect posture to hold — in practice, the most comfortable position tends to be your next one, so variety matters more than any single ideal pose. A few small changes cover most of it:

  • Move often. Stand, stretch, or walk for a minute or two roughly every half hour. A short lap to refill a water bottle counts.
  • Set the desk up so it works for you. Screen at eye level, forearms supported, feet flat or on a footrest. A workable setup lowers the effort of sitting well.
  • Change position through the day. Alternate between sitting and standing if you can, and shift how you sit rather than freezing in one shape.
  • Keep generally active. Regular walking and the sort of strengthening the NHS recommends for adults build the load tolerance that protects your back over time.

None of this requires special equipment. Consistency is what does the work.

Staying active when it flares

When your back does flare, the instinct is often to rest and wait it out. The evidence points the other way. Staying as active as your pain reasonably allows helps recovery, whereas bed rest beyond 24 to 48 hours tends to slow it and raises the risk of the problem lingering.

Keep to your normal routine where you can. Walking and gentle movement are encouraged even during an acute episode. Modify the tasks that clearly aggravate things rather than stopping altogether, and let comfort guide how much you do. A physiotherapist can tell you what is safe to keep doing and what to ease off temporarily — that reassurance is often half the battle.

When it is sciatica

Sometimes the pain is not confined to the back. Sciatica describes pain, tingling, or numbness that travels from the lower back down the leg along the path of the sciatic nerve, usually because a nerve root in the lumbar spine is irritated or compressed. Long hours of sitting can aggravate it.

The good news is that sciatica usually follows the same recovery arc as other back pain. Most cases improve within four to six weeks, and the majority resolve within twelve weeks without surgery. As with non-specific back pain, NICE advises against routine imaging and prolonged rest; movement, graded exercise, and time do most of the healing. Manual therapy and, where appropriate, acupuncture can support that plan, but progressive exercise remains the core.

Red flags — when to seek urgent help

The vast majority of desk-related back pain is not dangerous, but a small number of symptoms need same-day attention. Go to A&E immediately if you develop loss of bladder or bowel control, numbness around the saddle or genital area, or progressive weakness in both legs. These can signal cauda equina syndrome — a rare emergency that needs imaging and treatment within hours. Also seek urgent care after a significant fall or accident. Physiotherapy is not the first step in these situations.

How physiotherapy approaches it

A physiotherapy assessment starts with your story: how the pain behaves, what makes it better or worse, and how your work, sport, and daily routine load your spine. From there we agree a working diagnosis you understand and a plan that fits your life rather than a generic sheet of exercises.

Treatment typically combines hands-on manual therapy to ease pain and restore movement with a progressive exercise programme that rebuilds strength and load tolerance — the strongest evidence-based defence against recurrence. You leave with a home-exercise plan, and each follow-up is measured against your own baseline rather than a fixed number of sessions. If desk-related back pain keeps returning, that structured, whole-person approach is the place to start.