Why Does My Back Hurt When I Sit? Causes, Solutions & Expert Tips

Desk job leaving your back sore? Our physios explain why it happens and what actually helps long-term.

Why Does My Back Hurt When I Sit?

Understanding desk-related back pain — and what actually helps

If you’ve ever stood up from your desk and felt stiff, tight, or sore in your lower back, you’re not alone. “Why does my back hurt when I sit?” is one of the most common things we hear from clients at our Hampton East, Yarraville, and Kensington studios — especially from people who spend long hours at a computer.

The good news? Sitting itself isn’t the enemy. The real issue is how long you sit, how often you move, and how prepared your body is to tolerate that load. And that’s something we can absolutely work with.

Is Sitting Bad for Your Back?

Not exactly. Your spine is designed to move — flex, extend, rotate. The problem isn’t sitting. It’s staying in one position for too long without giving your body the variation it craves.

When you sit for extended periods:

  • Muscles that support your spine fatigue
  • Your hips remain in a shortened position
  • Blood flow to spinal structures reduces
  • Your body becomes less tolerant to load over time

Over time, this can lead to stiffness, discomfort, and persistent lower back pain from sitting — something our physio and clinical Pilates team works with every day.

Why Does Office Back Pain Worsen at the End of the Day?

This is one of the most telling patterns we see. People describe their back pain as manageable in the morning, but by mid-afternoon they’re shifting in their seat, and by the time they stand up to leave, they feel stiff and tight.

This pattern almost always points to postural fatigue, not structural damage. Your body simply loses its ability to tolerate the same position over hours without movement. Think of it like holding a light weight for six hours — eventually, even something small becomes uncomfortable.

That’s reassuring to know. It means the problem isn’t that something is broken — it means your body needs more capacity and variety.

Common Reasons Your Back Hurts When Sitting

1. Not Enough Movement Variety

Your spine loves variation. When it stays in the same posture for hours on end, the surrounding tissues become load-sensitive and reactive. It doesn’t take a dramatic injury — just the slow accumulation of the same position, day after day.

2. Underworked Support Muscles

If your core, glutes, and back muscles aren’t conditioned to support prolonged sitting, they fatigue faster — and your spine picks up the slack. Building strength in these areas is one of the most reliable long-term strategies for desk-related back pain, and it’s exactly what our clinical Pilates and physiotherapy programs are designed to do.

3. Stress and Muscular Tension

Stress often shows up in the body before we notice it mentally. Increased muscular tension around the lower back, shoulders, and neck is a very common contributor to desk-related pain — and one that’s frequently overlooked. Remedial massage and myotherapy can be genuinely helpful here.

4. Returning to Desk Work After a Break

Whether it’s after annual leave, parental leave, or a period of working from home with more movement, returning to full-time desk work can be a real adjustment. Your body may simply be readapting to a sitting load it hasn’t had for a while. Gradual reloading and some targeted support can make all the difference.

What Actually Helps Lower Back Pain from Sitting?

1. Regular Movement Breaks (Small But Consistent)

You don’t need a 20-minute stretch routine in the middle of your workday. Standing up every 30–60 minutes for just one to two minutes can significantly reduce stiffness and reset your body’s tolerance. Set a phone alarm if you need the reminder — it really does help.

2. Strength, Not Just Stretching

Stretching can feel great in the moment, but it rarely solves the underlying problem on its own. Long-term relief from lower back pain from sitting comes from building the strength and endurance your spine needs to cope with daily load. Our Clinical Pilates sessions and Reformer Pilates classes are built around exactly this — gentle, evidence-based movement that progressively builds capacity and confidence.

3. Massage and Myotherapy for Tension Relief

When stress and prolonged sitting combine, the result is often deep muscular tension that doesn’t budge easily on its own. Our remedial massage and myotherapy team can help release that tension and get you moving more freely — which is a useful complement to any longer-term strengthening plan.

4. A Proper Physiotherapy Assessment

If your back pain has been going on for a few weeks or more, it’s worth getting eyes on it properly. Our physiotherapists will assess what’s actually driving your pain — whether it’s a load issue, a strength deficit, a movement pattern, or something that needs a different approach — and put together a clear, practical plan. No guesswork. No generic exercises from a Google search.

When Should You See a Physio?

Most desk-related back pain responds really well to the right support. But don’t leave it too long — come in if:

  • Your pain has lasted more than a few weeks
  • It travels into your buttock or down your leg
  • It’s waking you up at night
  • It’s affecting your ability to exercise, move freely, or enjoy everyday life

Our team at All for One (Hampton East, Yarraville, and Kensington) is here to help you get clarity and get moving again.

Ergonomics vs. a Strong Body: What Matters More?

We see a lot of people who have invested in standing desks, ergonomic chairs, lumbar supports, and monitor risers — and are still dealing with lower back pain from sitting. That’s because ergonomics, while genuinely helpful, can only do so much.

A strong, well-conditioned body tolerates sitting far better than a deconditioned one. Even the most perfectly adjusted workstation won’t fix weak glutes, a stiff thoracic spine, or an undertrained core. Ergonomic improvements and physical conditioning work best together — not as substitutes for each other.

The goal isn’t perfect posture. It’s a resilient body.

The Longer View: Building a Body That Handles Life

At All for One, we work with plenty of people who’ve been quietly managing desk-related back pain for years — pushing through, stretching it out, and hoping it’ll eventually go away on its own. It rarely does without the right support.

What we’ve found works is a combination of consistent, guided movement, gradually building strength, avoiding both extremes of total rest and over-doing it, and understanding your own body’s load limits. Whether that looks like Clinical Pilates, physiotherapy, or a mix of treatments, we’ll work with you to find what fits.

Back pain from sitting doesn’t mean your body is broken. It means your body is asking for something — and we’re here to help you figure out what that is.

Ready to do something about it? Book a physiotherapy assessment at our Hampton East, Yarraville, or Kensington studio, or explore our Clinical Pilates and Reformer Pilates classes. We’d love to help.

Frequently Asked Questions

Is sitting causing permanent damage to my back?

In most cases, no. Discomfort from prolonged sitting is usually about load and tolerance, not structural damage. That said, if pain has been persisting for a few weeks or more, it’s always worth getting a proper assessment so you know what you’re actually dealing with.

How do I stop my back from hurting at my desk?

A combination of regular movement breaks (every 30–60 minutes), building core and back strength, and addressing any underlying tension is the most effective approach. A physiotherapy assessment can help you pinpoint exactly where to start.

What is the best sitting position for lower back pain?

Honestly? Your next one. There’s no single perfect posture — what matters more is varying your position throughout the day. That said, having your feet flat on the floor, your screen at eye level, and your lower back lightly supported is a solid starting point.

How long should I sit before taking a break?

Aim to stand and move for one to two minutes every 30 to 60 minutes. It sounds simple, but for a lot of people it’s genuinely one of the most impactful changes they make.

Should I stop sitting completely?

No — and you don’t need to. The goal isn’t to eliminate sitting, it’s to break it up and build your body’s capacity to handle it well. Avoidance usually makes things worse over time, not better.

Is stretching enough to fix lower back pain from sitting?

Stretching can give you some short-term relief, but it rarely resolves the underlying problem. Building strength and load tolerance is what creates lasting change — which is why we lean heavily on Clinical Pilates and progressive exercise rather than passive stretching alone.

Can Pilates help with back pain from sitting at a desk?

Yes — it’s one of the best tools we have. Clinical Pilates, in particular, is tailored to your body and your specific pain presentation. It builds core strength, improves spinal control, and helps you move with more confidence. Many of our clients notice a real difference within just a few weeks.

Where can I get help for back pain in Melbourne?

All for One has studios in Hampton East, Yarraville, and Kensington, all offering physiotherapy, clinical Pilates, remedial massage, and myotherapy. You can book an appointment online or give us a call — we’re always happy to point you in the right direction.