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The Truth About Core Training for Back Pain and Sciatica (2019 Edition)

In recent years, a lot of media attention has been given to exercises that focus on strengthening the core muscles in a bid to stop back pain. But is core training a fix-all? Let’s discuss…

Aims of this post:

  • To talk about what the core actually is
  • To talk about my own experience with using core training for people with back pain and sciatica
  • To discuss why core training might not be the best thing you can do for your rehab
  • To give you some handy alternatives to core training that will give you more “bang for your buck”

core training for back pain and sciatica might not be the best way to get pain relief

The “core” include the abdominal muscles, but not just the muscle that makes up the 6-pack that you see in your local gym! The most important core muscle is the “transversus abdominus”, which is a thin sheet of muscle that wraps around your midriff.

The transversus abdominus helps us to keep upright, keep the contents of our stomach tucked in and provides stability around the trunk.

The transversus abdominus training used to be thought of as the best pain relief for back pain and sciatica
The transversus abdominus wraps around the midriff, sitting underneath the abdominals you can see in this picture. They are like a sheet of muscle acting as a corset.

At one time, this muscle was hailed as the most important area of the body associated with back pain.

There was one particular study that showed that people with back pain had altered activity in their transversus abdominus when they were standing and sitting.

Knee jerk reaction

Cue a massive knee-jerk reaction from the healthcare profession and the media (physiotherapists were undoubtedly the guiltiest of this!)

We assumed that, if we could “fix” this change in activation of the transversus abdominus (or “core” as we liked to call it), we could eliminate back pain.

However, since then studies have refuted this claim entirely.

Unfortunately, the information that core training does not help back pain and sciatica as well as we thought hasn’t percolated through the media as quickly this time!

Not a fix-all, but not useless

I’m not writing off core training – it is still very important for stability and balance amongst other functions – I’m just saying it won’t “cure” your back pain.

If your entire rehabilitation programme is focussed around core training, you’re going to be disappointed.

I think classes that teach core strengthening – like Pilates and Yoga – are great, but I don’t think they would’ve gained so much traction in society of late if this myth wasn’t believed to be a magic fix for back pain and sciatica.

In summary; YES, the core is important. But NO, training the core will not fix back pain and sciatica.

Core training is not a magic treatment for back pain and sciatica but still has some benefits

How do I know?

I figured this myth out a long time ago – after being guilty of relying on core training for back pain rehab myself, too. When I trained, I was taught that core strengthening was THE BEST thing to do for back pain and sciatica.

I was taught that, quite simply, if you didn’t have strong core muscles you were GUARANTEED to have back pain or sciatica at some point.

I was also taught that EVERY patient I had with back pain and sciatica was experiencing these problems because of their “weak core”, and it wasn’t going to get any better unless they did LOADS of core strengthening.

Unfortunately, this myth was and is widely believed!

To hear about the commonly believed but HARMFUL myths about back pain and sciatica that you SHOULDN’T believe, click here!

However, I had one patient that made me question this myth, just as we should always question the status quo when it comes to healthcare.

One day, there standing in front of me, was a high performing, professional gymnast – with back pain and sciatica.

Having strong abdominals does not make recovery from low back pain and sciatica more likely

Fit as a fiddle, with the ability to hold the plank position for hours on end, and he still had back pain. So, if all the teaching around weak core muscles and back pain was true, why was this man in so much pain?

If I had given this gentleman a plan full of Pilates and leg raises, he wouldn’t have improved one bit, I can promise you that.

Let me explain…

Along with workouts for the transversus abdominus, which helps keep us upright and secure, the other abdominal muscles will also simultaneously get a workout.

The abdominal muscles – called the rectus abdominus and the transverse abdominals – which are trained through traditional “core strengthening” exercises work to flex us forward and sideways.

If they become strong and tightened, this can change our postures. Now, this posture change isn’t necessarily a good or a bad thing, but for some people with pre-existing back pain and sciatica, it can make these conditions WORSE!


This occurs because the tightening of these muscles causes a natural tendency for us to stand and sit with a subtly flexed forward posture, while our pelvis “tilts” backwards slightly. This will place extra load through certain parts of the spine.

Depending on our individual mechanics, if a part of the spine is loaded improperly, we may get worsening back pain and sciatica, due to the compressive pressure on the discs, joints and nerves.

Abdominal training can add compressive forces to the spine which can make back pain and sciatica worse

Have you ever heard of “inversion tables”, that hang you upside down to “decompress” the spine?

Well, think of core training as doing the opposite of that. The exercises often add compressive forces to the spine.

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I found that when people with back pain and sciatica did lots of core work, even if they were able to completely isolate their transverse abdominals, they still saw no real improvements.

If they wouldn’t isolate this tricky to locate muscle, and ended up working out their other abdominals, their back pain generally got slightly worse than before.

Maybe, their lack of positive results was due an increase in this compressive element, loading their spines further and further in an unhelpful way.

For a list of effective exercises that you SHOULD be doing, click here!


With exercise, you should still do what makes you happy. You shouldn’t shy away from core work just because of this article. But you need to be aware that core training is far from a fix-all for back pain and sciatica.

Yes, include it if you want; no, don’t banish it to “fad” status. But do be wary of anyone who prescribes you “core” work only as a remedy for your back pain and sciatica.

Back pain and sciatica run far deeper than just core muscle weakness. We know from years of research that there are so many factors at play.

When choosing exercises for back pain and sciatica, move in a pain-free way where possible and do something that you enjoy!

I hope you enjoyed reading this article and that it didn’t come across as an “anti-core rant”!

If you liked what you read, why not let me know in the comments section below?

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