Strength Training for Lower Back Stiffness: A Sensible Approach
For most people with a stiff, achy lower back and no serious underlying cause, strength training is one of the more useful things you can do. NICE guidance on low back pain recommends exercise as a first-line approach, and the NHS advises staying active rather than resting in bed. The sensible version is unglamorous: start with movements you can do without the ache climbing, load them a little more each week, and train the hips and legs as much as the back itself. Expect the back to feel different within a few weeks and to be meaningfully more robust after two or three months.
This post is about the common, grumbling kind of stiffness: worse after a long day at a desk or a long drive, easing once you get moving. It is not a guide to treating an acute injury, sciatica or a diagnosed disc problem. If that is you, get a proper assessment first and bring what you learn to your trainer.
Check these before you start
The NHS back pain page lists the signs that need medical attention rather than a training plan. Get urgent help if you have numbness around your genitals or buttocks, loss of bladder or bowel control, pain after a significant fall or accident, a fever with back pain, or unexplained weight loss. See your GP or a physiotherapist first if the pain has not improved after a few weeks, if it spreads down a leg with pins and needles, or if it wakes you at night regardless of position. Check with your GP first, too, if you are pregnant, have a heart condition or are coming back after a long break.
Why stiffness and strength are linked
A stiff back is rarely a weak back in isolation. More often it is a back doing jobs the hips and trunk are not sharing. Eight hours sitting leaves the hips used to a bent position and the glutes barely working. When you then bend to lift a suitcase, the lower back takes a larger share of the movement than it would if the hips were strong and mobile.
Strength training helps in a few well-understood ways. Tissues adapt to the loads they are regularly given, so a back that is gradually exposed to bending, lifting and carrying becomes more tolerant of those things. Stronger hips and legs take more of the work. And there is a less mechanical effect that matters just as much: people who have lifted safely for a few weeks tend to stop guarding, moving stiffly and avoiding bending, which is often part of what keeps a back sore.
The principle: find a starting point that is calm
The question is not “which exercise is safe for backs” but “what can your back do today without the ache rising”. A simple rule I use with clients:
- Mild discomfort during an exercise, up to about 3 out of 10, that settles within a few minutes, is acceptable.
- Discomfort that is worse the next morning than it was before the session means the dose was too high. Reduce the load or range next time; do not stop altogether.
- Sharp pain, pain that travels down a leg, or anything that changes how you walk: stop that movement and get it checked.
Keeping a one-line note after each session (exercise, load, how the back felt the next morning) is more useful than any app. Patterns appear within a fortnight.
Exercises that tend to work first
These are starting points, not a prescription. Each one is chosen because it is easy to scale down and easy to progress.
Hip hinge drills
Learning to bend from the hips with a long spine is the foundation. A dowel along the back, touching head, upper back and tailbone, makes it obvious when the lower back starts doing the bending. Our guide to the hip hinge takes you through it. Once it is consistent, a light kettlebell or dumbbell deadlift from a raised block follows naturally.
Glute bridges and hip thrusts
They train hip extension without the back being loaded in a bent position. Most stiff backs tolerate them well from day one.
Trunk control exercises
The dead bug, side planks and a cable Pallof press teach the trunk to resist movement while the limbs move. Short holds and slow reps, not long burns.
Rows and carries
A supported dumbbell row or seated cable row strengthens the upper back with little strain on the lower back. Suitcase carries, a single dumbbell held at your side while you walk, are surprisingly good for the muscles along the side of the trunk.
Squats to a box
A goblet squat to a box at a height you control lets you load the legs while choosing your range. Lower the box as confidence and comfort improve.
A realistic first eight weeks
Two sessions a week is enough to see change. Three is fine if recovery is good. The outline below is what a typical progression looks like for someone with ordinary desk-related stiffness.
| Weeks | Focus | What it looks like |
|---|---|---|
| 1-2 | Calm and consistent | Hinge drills, bridges, dead bugs, supported rows. Light, smooth, two or three sets each. |
| 3-4 | Add load | Kettlebell deadlift from a block, goblet squat to a box, carries. Small weekly increases. |
| 5-6 | Add range | Lower the block and the box. Introduce split squats and cable work. |
| 7-8 | Build confidence | Heavier hinges, possibly a trap bar or barbell from blocks, longer carries. |
Progress is not a straight line. A bad week of sleep, a long-haul flight or a weekend of gardening can flare things up. The answer is to step back to the previous week’s loads for a session or two, not to abandon the plan.
Mistakes that keep backs stiff
- Resting until it feels perfect. Waiting for zero stiffness before training means waiting indefinitely. Gentle loading is part of the recovery.
- Endless stretching instead of strengthening. A hamstring stretch can feel nice, but the relief tends to be short. Range you can control under load lasts longer.
- Going straight to the heavy deadlift. The barbell deadlift is a fine exercise for many people with recovered backs. It is a poor first step.
- Bracing rigidly for everything. Holding the trunk locked all day, even when walking, can add to the stiffness. Brace for heavy lifts, relax for daily life.
- Ignoring the rest of the day. Two good sessions do not cancel ten hours of sitting. Get up every half hour or so, even briefly. Our piece on standing versus sitting desks covers what genuinely helps there.
What working with a coach adds
The value of a trainer here is mostly judgement: choosing the right starting point, noticing when your lower back starts doing a job your hips should be doing, and deciding each week whether to push or hold. In the studio under The Highgate House on Archway Road, a first session for someone with a stiff back starts with a conversation about history and daily routine, then simple movement tests: how you bend, squat, step and twist. From there we build the plan around the movements that feel calm and gradually reintroduce the ones that do not.
The studio is private, so nobody else is training while you are, and the kit (cable station, dumbbells, a rack for when you are ready) covers everything above. If you would like to read about how sessions are structured more generally, see private personal training in Highgate.
Questions we get asked
Should I avoid deadlifts if I have a bad back?
Not permanently, for most people. Start with hinge drills and lighter variations from a raised position. Many people with a history of back stiffness end up deadlifting comfortably; they just get there over weeks rather than in one session.
How long before it feels better?
Many people notice the morning stiffness easing within three or four weeks of regular training. Feeling robust enough to forget about it usually takes a few months of consistency.
Is it normal to feel stiffer the day after?
Some general muscle soreness is normal, especially early on. If the back pain itself is clearly worse the next morning, reduce the load or range next session.
Do I need to see a physio first?
If you have any of the red flags above, pain spreading down a leg, or pain that has not improved after a few weeks, yes. For ordinary stiffness, you can start gently, and a good personal trainer will tell you if something looks like it needs a clinician.
Book with The Highgate House
Ready to start training properly? Email us at [email protected] with the service and the day that suits you, and we will come back to you with times.
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