Back pain and the gym: should you train, and how?

By The FRF coaching team · 28 October 2026

Back pain is one of the most common reasons people give for avoiding the gym, and one of the most common reasons people tell us they want to start. It can be worrying when your back hurts, and it is natural to want to protect it by resting. The evidence, though, points the other way for most people: staying active and building strength gradually is one of the most helpful things you can do. This guide explains what the research says, the warning signs to look out for, and how to get back to training sensibly, with options locally in Polegate, Eastbourne and Hailsham.

First, the reassuring part

The NHS describes most back pain as not caused by anything serious, and says it usually improves within a few weeks or months. A major series on low back pain in The Lancet made the same point: for the large majority of people, back pain is not linked to a specific damaged structure, and scans often show changes that are common in people with no pain at all.

That does not mean the pain is not real. It means that pain is not a reliable measure of damage, and that a sore back is usually not a fragile back.

When to get checked first

Some symptoms do need medical attention before you think about exercise. The NHS advises getting urgent help if you have back pain together with any of these:

• numbness or tingling around your genitals or bottom
• difficulty peeing, or loss of control of your bladder or bowels
• a high temperature, or you feel generally unwell
• pain that started after a serious fall or accident
• chest pain, or pain that is very bad and getting worse

If your pain is not improving after a few weeks, it stops you doing everyday things, or you are worried, see your GP. We are coaches, not doctors or dietitians, so speak to your GP if you're unsure.

Why movement helps

NICE, which sets the standard for treatment in the NHS, recommends exercise as a core part of managing low back pain, and advises people to stay active and carry on with normal activities as far as possible. A Cochrane review of exercise therapy for chronic low back pain found that exercise probably reduces pain compared with no treatment or usual care.

Interestingly, no single type of exercise stands out as the best. Strength work, aerobic exercise, Pilates-style and mind-body approaches can all help. The most important thing is doing something you can stick with, and building up gradually.

Think capacity, not "imbalance"

You may have been told your back hurts because something is "out of line" or a muscle is "imbalanced". The research does not support the idea that small differences in posture or muscle balance are the main cause of back pain, and worrying about them can make people more cautious than they need to be.

A more useful way to think about it is capacity. Pain often flares up when what you are asking your back to do, such as lifting, gardening, a long drive or a new activity, is more than it is currently used to. The aim of training is to build that capacity steadily, so everyday life sits comfortably within what your body can handle. In practice that means:

• Strengthen what is weak. Legs, hips, back and trunk all share the load.
• Ease off what is overloaded. Adjust the exercise, the weight or the range for a while, rather than stopping altogether.
• Build up gradually. Small, regular increases teach your back that movement is safe.

A simple rule for training with back pain

Some discomfort while you exercise is usually fine. A helpful guide is that pain during exercise should stay mild and settle back to your usual level soon afterwards. If it gets noticeably worse, or it is still worse the next day, ease off a little next time rather than stopping completely. If you are unsure, check with your GP or a physiotherapist.

Where massage fits in

NICE suggests manual therapies such as massage only as part of a treatment package that includes exercise, not on their own. Many people find a massage helps them feel looser and more comfortable, which can make it easier to keep moving. At Full Range Fitness we offer massage alongside training; see our massage page for details and prices.

Training with us in Polegate

Almost all of our sessions are small group personal training: one-hour, coach-led sessions in a small group, so a coach can see how you are moving and adapt exercises for your back on the day. Tell your coach about your back when you start, and let them know how it is feeling each time.

If you want a steadier start, Vitality is slower paced and fully coached, with controlled strength work that builds a strong foundation and core. Mobility is an hour of flexibility, stretching and self-massage. Over 50s can also try Legends, focused on low-impact strength, mobility and balance.

We are on the Chaucer Business Park in Polegate with free parking, about six minutes' drive from Hailsham and around twelve minutes from the centre of Eastbourne. Message us on WhatsApp on 07925 149477 if you would like to talk about where to start.

Sources

• NICE. Low back pain and sciatica in over 16s: assessment and management (NG59), 2016, updated 2020.
• NHS. Back pain. nhs.uk
• Hartvigsen J, et al. What low back pain is and why we need to pay attention. The Lancet 2018 (Low Back Pain Series).
• Hayden JA, et al. Exercise therapy for chronic low back pain. Cochrane Database of Systematic Reviews 2021.
• World Health Organization. WHO guideline for non-surgical management of chronic primary low back pain in adults (2023).