Can wearing a back brace for a long time weaken your muscles?

Key points in 30 seconds

1. Many people say that wearing a back brace for a long time weakens your back muscles, but there is still no solid evidence to support this.
2. That said, there's also no evidence that wearing one for years is fine. No study has followed people for that long.
3. What matters isn't whether you wear a brace, but whether you keep walking and moving while you wear it.
4. If you have spinal stenosis and your legs go numb when you walk, a brace may help you walk farther.
5. If your legs feel weak, the distance you can walk suddenly drops, or your back started hurting after a fall, don't just get by with a brace — get checked first.

What we often hear

• "The brace feels good. Is it okay to keep wearing it?"
• "When I take it off, my back feels exposed and I get nervous."
• "I heard a brace makes your muscles weaker. That scares me."
• "I keep putting it on. I'm worried I'll never be able to take it off."

Many people come to us after wearing a brace for more than two or three months, wondering what to do now.

Many people come in after hearing that "a back brace drains the strength from your back." They say it feels good to wear, but they wonder if it's okay to keep it on, and when they take it off, their back feels exposed and they get nervous. Most come in after wearing it for two or three months or more, wondering what to do now.

This worry has existed for a long time, even among medical professionals. The idea is that a brace does the muscles' job for them, so the muscles rest, and muscles that rest get weaker. It sounds convincing. So we looked into whether this has ever actually been confirmed.

The picture turned out to be different from what we expected.

Is there evidence that the muscles get weaker?

No.

When 35 studies were gathered and reviewed, no conclusive evidence was found that back braces weaken the trunk muscles. Some studies found no change in muscle strength, and some even found it increased.

The same research team also tested this question directly. They divided 44 patients with long-term back pain into two groups and gave a brace to only one group. After wearing it for an average of 7 hours a day for 4 weeks, the thickness of the deep muscles of the abdomen and lower back was measured by ultrasound — and nothing had changed.

It's closer to "there's no evidence yet to support that claim" than "the claim that muscles get weaker is wrong." On the other hand, there's also no evidence that wearing one for years is fine. No study has followed people for that long.

Then why don't the guidelines recommend back braces?

In 2023, the World Health Organization advised that people with long-term back pain should not use braces routinely. Looking only at that, braces seem bad.

But when you open up the evidence behind that judgment, it's a different story. It says "certainty of evidence: very low." That doesn't mean braces were shown to be harmful; it means there isn't enough data to judge.

You also need to look at who it covers. This guideline deals with back pain without a clearly identifiable cause. People whose imaging confirms spinal stenosis don't fall under it.

There are results pointing the other way, too. A 2022 analysis took issue with the fact that guidelines don't recommend braces even though braces helped in several trials. Pooling 777 patients, it found that the group wearing braces had greater reductions in both difficulty with daily activities and pain.

In other words, the current situation is not that braces are harmful, but that it hasn't yet been sorted out who they help and by how much.

What about spinal stenosis?

Some people's legs go numb as they walk, so they have to stop and rest. For people like this, there are trial results showing that a brace helped them walk farther.

This trial compared two types of brace in 104 people with spinal stenosis over age 50. What's worth noticing is not which one won, but that walking distance increased in both groups.

Why would it help? When you bend your lower back backward, the passage the nerves run through narrows; when you bend forward, it widens. That's why people with stenosis feel better when they bend forward, and find uphill easier than downhill. If a brace reduces how much the lower back arches, the nerves may be less compressed while you walk.

However, there's no evidence for managing stenosis with a brace alone. In a study pooling 44 trials, what clearly increased walking distance was a combination of hands-on treatment, exercise, and education.

So here's how we see it

We don't treat the brace itself as the problem. Based on the evidence, you can't say for certain that wearing a brace weakens your muscles, and if you take a brace away from someone who can only walk with it, they'll stop walking. The older you are, the bigger the risk of not moving.

The real problem is wearing a brace and not moving. People who walk and exercise while wearing a brace get different results from people who lean on the brace and cut back on activity. The fact that the evidence for increasing walking distance in stenosis came from approaches that included exercise says the same thing. If you don't walk, you lose strength; if you lose strength, you lean on the brace even more. The older you are, the faster this cycle turns.

That's why we ask why you wear it. Using it when it hurts, when you have to stand for a long time, or when you go out is different from wearing it all day, even in bed. If you can't take it off because you feel anxious without it, that anxiety itself needs to be addressed.

There's still no study that has followed people who've worn a brace for years over the long term. So we don't give a general rule about whether you should or shouldn't wear one. We measure whether you, right now, are in a state that needs it, and decide from there. If your walking distance is increasing, you're on the right track, and from that point we work out together how to cut back on the brace.

We check whether the brace is hiding any warning signs

This is the most important part. When a brace makes things bearable, you may put off getting checked, and something can be missed in the meantime.

If your leg numbness gets worse, the distance you can walk becomes noticeably shorter, you feel weakness, your bladder or bowel control changes, the pain started after a fall, or it hurts even when lying down at night, you need to get checked right away. In particular, when back pain starts after a fall in an older person with weak bones, the possibility of a fracture has to be looked at first.

Here's what we do

First, we ask when you started using the brace and how you use it. We check how many hours a day, in what situations, and even how it feels when you take it off.

Then we decide based on imaging. We measure your body's alignment with a posture analysis, and if needed, check the spine with X-ray, CT, or MRI in partnership with the radiology clinic on the 2nd floor of the same building. Whether it's stenosis, a fracture, or age-related change completely changes what the brace means. We don't decide whether you should keep wearing a brace without imaging.

Next comes building the strength to hold yourself up without the brace. We work on misalignment and stiff areas with Chuna (Korean manual therapy), and manage pain with acupuncture and pharmacopuncture (herbal acupuncture). We guide your body toward producing on its own the support the brace had been providing. We've refined this approach over 14,286 Chuna sessions in total (as of September 2026) and 20,374 patients in total (as of August 2026).

We don't tell you not to walk. We decide together how much and how to walk. When your walking distance increases, that in itself is treatment. If warning signs appear, getting checked comes before treatment, so we'll guide you to tests right away and, if needed, refer you to a larger hospital.

Whether you need a brace, and how much you improve, differs from person to person depending on the condition of your spine, bone health, muscle strength, and other conditions.

What we aim for

It isn't about taking your brace away.

It's about being able to walk farther, even while wearing the brace. And over time, needing the brace less. When your body regains its own strength to hold itself up, that happens naturally.

A trip to the grocery store that feels less of a strain. Not having to think about whether to bring the brace when you go out. That's the kind of change we work toward together.

If you've been wearing a brace for more than two months, if you keep wearing it because you feel anxious without it, or if your walking distance keeps getting shorter even with it on, come in once to get measured. We won't tell you to take it off right away. We'll measure whether you need it now, and if you do, we'll have you keep using it. In return, we'll decide together when and how to cut back.

Sources used in this article

Source	What was studied	Result
Azadinia et al., 2017	Analysis pooling 35 studies	No conclusive evidence that braces weaken trunk muscles
Azadinia et al., 2019	44 back pain patients, worn 7 hours a day for 4 weeks	No change in the thickness of deep abdominal and lower back muscles
Gignoux et al., 2022	Analysis pooling 4 trials, 777 people	Greater reductions in daily-life difficulty and pain in the brace group
World Health Organization guideline, 2023	Clinical guideline for long-term low back pain	Routine use not recommended; but certainty of evidence "very low"
Ammendolia et al., 2019	104 people with stenosis, aged 50+	Walking distance increased with both types of brace
Ammendolia et al., 2022	Analysis pooling 44 trials	What clearly increased walking distance was hands-on treatment, exercise, and education combined

References

1. Azadinia F, Ebrahimi Takamjani E, Kamyab M, Parnianpour M, Cholewicki J, Maroufi N. Can lumbosacral orthoses cause trunk muscle weakness? A systematic review of literature. The Spine Journal. 2017;17(4):589-602. doi:10.1016/j.spinee.2016.12.005. PMID: 27988341

2. Azadinia F, Ebrahimi Takamjani I, Kamyab M, Kalbassi G, Sarrafzadeh J, Parnianpour M. The effect of lumbosacral orthosis on the thickness of deep trunk muscles using ultrasound imaging: a randomized controlled trial in patients with chronic low back pain. American Journal of Physical Medicine & Rehabilitation. 2019;98(7):536-544. doi:10.1097/PHM.0000000000001135. PMID: 30652982

3. Gignoux P, Lanhers C, Dutheil F, Boutevillain L, Pereira B, Coudeyre E. Non-rigid lumbar supports for the management of non-specific low back pain: A literature review and meta-analysis. Annals of Physical and Rehabilitation Medicine. 2022;65(1):101406. doi:10.1016/j.rehab.2020.05.010. PMID: 32561503

4. World Health Organization. WHO guideline for non-surgical management of chronic primary low back pain in adults in primary and community care settings. Geneva: World Health Organization; 2023. ISBN 978-92-4-008178-9. https://www.who.int/publications/i/item/9789240081789

5. Ammendolia C, Rampersaud YR, Southerst D, Ahmed A, Schneider M, Hawker G, Bombardier C, Côté P. Effect of a prototype lumbar spinal stenosis belt versus a lumbar support on walking capacity in lumbar spinal stenosis: a randomized controlled trial. The Spine Journal. 2019;19(3):386-394. doi:10.1016/j.spinee.2018.07.012. PMID: 30053521

6. Ammendolia C, Hofkirchner C, Plener J, Bussières A, Schneider MJ, Young JJ, Furlan AD, Stuber K, Ahmed A, Cancelliere C, Adeboyejo A, Ornelas J. Non-operative treatment for lumbar spinal stenosis with neurogenic claudication: an updated systematic review. BMJ Open. 2022;12(1):e057724. doi:10.1136/bmjopen-2021-057724. PMID: 35046008

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If you've been wearing a back brace for years, come in once to get measured. We'll start by checking whether you're able to walk farther even with it on.

For questions or appointments, message us in English through the messenger at the bottom right of the page, or call +82-53-716-1175.