Why Loaded Squats Are Changing Knee Pain Treatment

At 7:30 a.m. in a modest physiotherapy clinic in Madrid, the waiting area resembles a knee symposium. There is a retired PE teacher with a scar from an old meniscus operation, a 38-year-old runner devoted to foam rolling, and a young mum still walking with a limp a year after giving birth. The muted television is showing a health feature: when asked about knee pain, the expert does not recommend “swimming” or “Pilates”. Instead, he calmly suggests a weight-bearing exercise. A ripple of surprise passes around the room. One woman murmurs, “That can’t be right… weight on bad knees?” The physiotherapist smiles; he has heard it before. “This,” he says, gesturing towards the screen, “is exactly the fight we’re having in medicine right now.”

Something is shifting in the world of painful knees, and not everybody welcomes it.

A controversial move from protecting knees to loading them

For years, the guidance appeared straightforward: when your knees hurt, take it easy. Doctors advised rest, swimming, gentle Pilates and anything that reduced weight through the joint. It seemed both sensible and safe. So, when a new generation of specialists began prescribing one specific weight-bearing exercise for knee pain, it felt like a direct challenge to the old rule. To some, it represents progress; to others, it seems reckless.

The argument has now moved beyond medical conferences and into TikTok feeds and waiting rooms, where patients are trying to make sense of it.

Take Ana, a 52-year-old office worker who, as she says, has had “bad knees since 40”. For years, her routine was almost a textbook example: aquatic exercise twice weekly, gentle Pilates when she had enough energy, and painkillers when she did not. Her knees never truly got better; they merely... endured. Then a new sports doctor advised her to do slow, controlled squats while holding the kitchen worktop, two to three times each week. Weight through the joint. Pressure exactly where it hurt.

Three months later, she is not free of pain, but she can climb stairs without clutching the handrail.

Ana’s modest breakthrough rests on a simple principle: joints require more than protection; they also need carefully measured stress in order to adapt. The muscles surrounding the knee, particularly the quadriceps and glutes, work as shock absorbers. When they are weak, the joint absorbs the impact instead. Gradual, controlled weight-bearing signals to the body, “We need this area to be stronger.” Cartilage nutrition improves, tendons become more resilient, and the brain learns again that movement is not a threat. This is the case made by the “load the knee” camp. Their critics caution that, when done badly, the same exercise can trigger a flare-up and accelerate damage. That is where the medical battle begins.

The “shocking” exercise: the humble loaded squat, with rules

Remove the drama and the disputed recommendation is remarkably straightforward. Many specialists now advocate a type of squat as a first-line exercise for chronic knee pain. This is not the heavy, ego-driven gym version. It is a slow, shallow, supported squat using a chair, doorframe or kitchen worktop. With feet hip-width apart, bend the knees slightly, send the hips backwards as though sitting down, then return to standing. Comfort is crucial: no sharp, stabbing pain and no “forcing it”. The aim is simply a firm effort and a little discomfort that you can breathe through.

Two or three sessions a week, with 2–3 sets of 8–12 repetitions, may already start to alter the story for those knees.

The difficulty is that most people were never properly taught how to squat. We bend down and hope for the best. That is when people become frightened, get injured, or experience both. One frequent error is allowing the knees to fall inwards or driving them far beyond the toes while the heels lift from the floor. Another is rushing the movement and bouncing at the bottom like a poor dance move. Neither is ideal for irritated joints. The most helpful instruction is this: move as if you are slowly lowering yourself onto a low stool, then rise to stand tall, with the chest relaxed and eyes looking ahead.

In truth, hardly anyone manages this every single day. Yet those who continue a few times a week often find that ordinary activities gradually feel less like a struggle.

Many physiotherapists argue that the real change is not the squat itself, but the change in mindset it represents. Rather than viewing knees as fragile glass, this approach sees them as adaptable structures that can respond to training. It does not make fear disappear overnight. We’ve all been there, that moment when you feel a twinge and your brain whispers: “Stop, or you’ll wreck it.”

“The old message was ‘protect, protect, protect,’” says Dr. Laura Méndez, sports medicine specialist. “Now we know that over‑protecting joints keeps them weak. The goal is not to avoid load forever, but to find the right dose and progression for each person.”

• Begin with support: use a chair, rail or wall, so balance is not the main challenge.
• Stay in the “yellow zone”: mild to moderate discomfort that settles within 24 hours is usually acceptable.
• Move at a controlled pace: 3 seconds down, a brief pause, and 2 seconds up.
• Stop if pain becomes sharply worse or remains intense for days.
• Record the improvements: stairs, getting up from the sofa and walking speed. These small gains matter more than flawless form.

A medical war - and an opportunity to reshape the future of our knees

On one side are the cautious clinicians: rheumatologists and surgeons who still favour low-impact choices such as swimming and Pilates as the “safest” route. On the other is an expanding group of sports doctors and physiotherapists advocating progressive overload, on the basis that long-term strength is better than long-term avoidance. Social media has intensified the disagreement. Viral posts display “miracle knee transformations” credited to squats and lunges, while other posts recount horror stories from people who introduced weight-bearing too quickly and finished in greater pain. In the middle are ordinary people simply trying to walk, work and sleep.

One doctor tells them “never squat again”, while the next says “you must squat or your knees will deteriorate.” It is hardly surprising that confidence is wearing thin.

Away from the noise, a quieter reality becomes clear: the best strategy is seldom all or nothing. Many patients blend the old with the new. They retain pool sessions for relief, Pilates for core strength and posture, then add structured weight-bearing work two or three times a week. The purpose is not to win an ideological contest between opposing camps, but to recover everyday movements - stairs, pavements and shopping bags - without continual fear. The most considered clinicians focus less on “this exercise vs that one” and more on dosage, consistency and monitoring the knee’s response over time.

The surprising element is not the squat itself, but the possibility that pain and load can coexist usefully.

This change raises uncomfortable questions about ageing. Do we want joints that are protected but deconditioned, or trained and occasionally grumpy? There is no answer that suits everyone. Some people will flourish with gentle, non-weight-bearing exercise and never require anything more. Others will only move beyond their plateau when they are willing to apply measured pressure through their legs and develop real muscle around the knee. While this medical debate continues, the most important experiment may be unfolding quietly in living rooms, kitchens and small clinics everywhere, one slow squat at a time.

People are discovering how far they can progress without crossing the unseen boundary where help becomes harm, and that experiment could redefine what “bad knees” means for the next generation.