Glutes not firing?

A look at what the research actually says about one of the most popular diagnoses in sports therapy

Ask any sports massage therapist, personal trainer or physio who has worked in the UK over the last decade and the chances are they have either told a client their glutes aren't working properly — or been told the same thing themselves. "Dead butt syndrome." "Gluteal amnesia." "Your glutes have switched off."

It has become one of the most fashionable diagnoses in health and fitness, and if you believe the fitness magazines, social media posts and treatment room conversations, we are in the middle of a full-scale glute inhibition epidemic. The sedentary modern lifestyle has apparently caused millions of people to simply forget how to use their backside.

There is just one problem: the research does not really support any of this.

Where Did This Idea Come From?

The concept of gluteal inhibition has its roots in the work of Vladimir Janda, a Czech neurologist working several decades ago, who described patterns of muscle imbalance he believed to be predictable and clinically significant. His "lower crossed syndrome" proposed that sitting too much leads to tight hip flexors and tight erector spinae muscles, with correspondingly weak abdominals and a weak, inhibited gluteus maximus.

From this model came the belief that the glutes — particularly gluteus maximus — are uniquely prone to switching off, and that this inhibition is a root cause of all manner of pain and movement problems, from lower back pain to knee injuries to running niggles.

It is a neat, logical-sounding story. The only trouble is that the science does not back it up particularly well.

What Does the Research Actually Show?

If gluteal inhibition were genuinely a widespread clinical problem, we would expect to consistently see less gluteal muscle activity in people who are in pain or injured compared to those who are not. But when you look at the evidence, the picture is much more complicated — and in many cases, completely the opposite of what the theory predicts.

Studies have found no difference in gluteus maximus activity in people with low back pain compared to pain-free controls — not in one study, but in multiple. Research has also found increased gluteus medius activity in people with hip osteoarthritis, and increased gluteus maximus activity in people with hamstring strains. In one particularly interesting study, when a symptom modification procedure was applied to a painful SI joint, gluteus maximus activity actually decreased — suggesting the muscle had been more active, not less, during the painful period.

Perhaps most provocative of all: research published in 2004 found that the gluteus maximus is "late to fire" during the prone hip extension test in virtually everybody — not just in people with pain or sedentary habits. What was being diagnosed as a dysfunction was simply normal human neuromuscular behaviour.

In other words: your client's glutes are not broken. They are just human.

The Reciprocal Inhibition Argument Does Not Hold Up Either

A common explanation for why tight hip flexors supposedly switch off the glutes is a mechanism called reciprocal inhibition — the idea that when one muscle fires, the nervous system reflexively inhibits the opposing muscle to allow smooth, efficient movement.

This sounds plausible in theory. In practice, it falls apart fairly quickly.

The argument assumes that "tight" hip flexors are in a state of heightened muscular activity, which then constantly inhibits the opposing glutes. But tight muscles do not generally have increased resting muscle activity — tightness is far more commonly a perception or a structural adaptation than a sign of a muscle working overtime.

More practically, consider a squat. Many people claim that tight hip flexors inhibit the glutes during squatting. But during a squat, the hip flexors are shortening and going slack — gravity is flexing your hips, not your psoas. The hip flexors are not actively working against you. The premise simply does not hold.

Are the Glutes Even That Important?

Here is a question worth asking: even if someone did have reduced gluteal activity, why would that necessarily be a problem?

The honest answer, according to the biomechanics research, is: it depends enormously on what they are doing. For the vast majority of daily activities — including walking and steady-state running — the research suggests you actually do not need a great deal of gluteus maximus activity at all. Studies by Dorn and colleagues on running biomechanics found that it is the calf muscles that do the heavy lifting when it comes to propulsion. The hip extensors play a relatively modest role.

Similarly, research by Willy and colleagues found that during running, the majority of the total support moment comes from the ankle and knee — with the hip contributing a comparatively small share.

This does not mean the glutes are unimportant. In high-load, end-range activities like sprinting, heavy lifting and climbing, they absolutely matter. But the idea that reduced glute activity is causing your client's lower back pain during walking, or their knee pain during a gentle jog, is much harder to justify.

So Why Does Glute Training Help People Feel Better?

This is the really important question — because many people genuinely do improve with programmes that include hip and glute strengthening work. Does that not prove the theory?

Not necessarily. Clinical improvement does not prove the mechanism behind it.

When someone with lower back pain is taught to hinge at the hips rather than rounding their spine, they are learning to temporarily avoid a movement that is currently sensitive. When they add hip and glute exercises to their programme, they are loading the body progressively, building general capacity and confidence, and often reducing their focus on a painful area while gaining a sense of control. All of those things are genuinely helpful for pain — none of them require the patient to have actually had "inhibited glutes" in the first place.

The treatment can work brilliantly without the diagnosis being correct.

This is not a trivial distinction. If we tell someone their glutes have forgotten how to fire, we are implying their body is broken in a specific, measurable way. That kind of messaging can increase anxiety, reduce self-efficacy and make people feel more fragile — none of which is helpful for recovery. If we instead say "let's build some strength and confidence in how you move," we are doing the same clinical work with a far more empowering narrative.

What Should We Actually Take Away From This?

None of this means you should stop strengthening the hips. Hip and glute strengthening exercises have a solid evidence base for helping people with knee pain, lower back pain and a range of other presentations. Do them. Prescribe them. Encourage them.

But there is a meaningful difference between saying "I'd like to build your hip strength and teach you a more comfortable way to move" and "your glutes have switched off and are causing your pain." One is accurate. One is not — and the inaccurate version can leave people feeling more damaged than when they walked through your door.

The glutes have not gone silent. They were never switched off in the first place. And in an era where we are rightly trying to build patient confidence and self-efficacy rather than dependency on passive treatment, the language we use around this matters.

Build people up. Train the whole hip. Avoid creating pathology where none exists.

And if in doubt — just get people moving.

This blog post is inspired by the work of Greg Lehman, physiotherapist and strength & conditioning specialist, whose original writing on this topic can be found at greglehman.ca. The views expressed here are intended to support evidence-informed practice for sports massage therapists and allied health professionals.