Lower back pain relief: what's actually causing it, and what to fix

Why the lower back takes the strain

The lumbar spine sits between two much larger, stronger structures — the ribcage above and the pelvis below — and relies heavily on the surrounding muscles for support: the deep core (transverse abdominis and multifidus), the glutes, and the hip flexors and hamstrings. When those muscles are weak, deconditioned, or simply switched off from hours of sitting, the lower back's small joints and discs end up absorbing forces they were never really meant to manage alone. Over time this shows up as a dull, nagging ache that flares with lifting, bending or long periods in one position.

Core and glute weakness: the quiet cause

It's a common pattern: someone with a desk job develops lower back pain, assumes it's from "bad posture" alone, and doesn't realise that weak glutes are a major part of the picture. The glutes are the body's main hip extensors, powering movements like standing up from a chair or climbing stairs. When they're underused, the lower back and hamstrings compensate, which over months of repetition leads to chronic tightness and pain.

Simple exercises such as glute bridges, bird-dogs and gentle planks (built up gradually) target exactly this weakness. These are not quick fixes — expect to build strength over several weeks — but for many people with recurring, non-specific lower back pain, this kind of graded strengthening does more for the long term than any passive treatment on its own.

Desk habits that quietly make things worse

If you spend most of the day at a desk, small setup issues compound over hours. Watch for:

• Slumping into the lower back. Chairs without lumbar support let the pelvis tip backward, flattening the natural curve of the lower spine.
• Screen height too low. This drags the head and shoulders forward, which increases load further down the spine too.
• Sitting still for hours. Even a good posture becomes a bad one if held without a break — see our full desk-sitting back pain guide.
• Low, soft sofas in the evening. These often undo a well-set-up desk chair, so the whole day's posture matters, not just working hours.

A simple lumbar support cushion, a screen raised to eye level, and standing up every 30–45 minutes address most of this without buying new furniture.

Lifting habits and everyday movement

Most people know the theory — bend your knees, not your back — but under time pressure (a child needing picking up, a heavy shopping bag, a suitcase) it's easy to revert to old habits. The key principles worth internalising:

• Bend at the hips and knees, keeping the natural curve of your back rather than rounding it.
• Keep the object close to your body rather than reaching out for it.
• Avoid twisting while lifting — turn with your feet instead.
• If something feels too heavy or awkward, get help or break it into smaller loads.

These habits matter more, not less, as core strength improves — good technique and a stronger midsection work together, rather than one replacing the other.

What actually helps day to day

Heat and hands-on-style relief

While you're building strength and fixing habits, tight muscles still need managing day to day. Heat relaxes muscle fibres and increases local blood flow, and gentle kneading can ease the sensation of tightness that builds up after a long day. A device such as the Orevive SpineEase, which combines 42°C infrared heat, EMS pulses and deep kneading vibration in a 15-minute cordless session, is a convenient way to get this most evenings without needing a partner to help or a hot water bottle that goes cold.

Gradual, consistent strengthening

Two or three short sessions a week of core and glute work, built up slowly, tends to produce more lasting change than any passive treatment alone. A physiotherapist can tailor this to your specific pattern if you're not sure where to start, or if pain flares when you try.

Movement variety through the day

Alternating between sitting, standing and walking — rather than staying in any one position for hours — reduces the cumulative load on any single structure in the spine.

When lower back pain needs more than self-help

If pain radiates down a leg, see our sciatica guide. If it followed a specific lifting incident and feels different from your usual aches, our slipped disc guide covers that cautiously. And if pain persists beyond a few weeks despite consistent self-care, book a GP appointment to discuss physiotherapy.