“I figured I should just rest it until it feels better.”
I understand the logic. If something hurts, the instinct is to stop moving it. But when it comes to arthritis, that instinct is often exactly backwards. As a PT who works from a performance-based lens, meaning I’m always asking “what is this joint capable of, and how do we build toward that” rather than just “how do we make the pain stop”, rest is rarely the answer I reach for. In fact, it’s often the thing kind of making things worse.
Let’s talk about why.
Joints Need Movement to Stay Healthy
Unlike muscle, cartilage doesn’t have its own direct blood supply. It gets its nutrients through a process called imbibition. Basically, movement and compression through the joint act like a sponge, pulling nutrient-rich synovial fluid in and pushing waste products out. When a joint sits still for extended periods, that exchange slows dramatically.
This means a joint that’s rested for weeks isn’t “protected”, it’s undernourished. The very tissue you’re trying to spare is losing the mechanism it depends on to stay as healthy as possible.
Immobility→Weakness. Weakness →More Pain
When a joint hurts, the muscles around it almost always get inhibited and start to atrophy quickly, sometimes within days. For an arthritic knee, that usually means the quadriceps. For an arthritic hip, it’s often the glutes. Those muscles are doing critical work absorbing load and stabilizing the joint during everyday movement.
Take away the movement, and you take away the muscular support system the joint relies on. Then you have a joint that’s now both arthritic and underprepared to handle load, which, ironically, tends to make daily activities feel more painful and less stable.
Pain and Structural Damage Are Not the Same Thing
This is a core principle in how I evaluate every arthritic patient: **pain does not equal damage, and the amount of pain someone feels correlates surprisingly poorly with how “bad” their joint looks on imaging.** Plenty of people have significant arthritic changes on an X-ray and minimal pain, and plenty of people have relatively mild imaging findings and significant pain.
What this tells us clinically is that pain is often more about how the joint is tolerating load than about the arthritis itself getting worse. A joint that’s deconditioned from rest often becomes more pain-reactive to normal activity. This isn’t because the arthritis progressed, but because its capacity dropped.
The Performance Lens: Building Capacity, Not Avoiding Load
This is where a performance-based approach differs from a purely pain-avoidant one. Instead of asking “what movements should we eliminate,” I’m asking:
- What load is this joint currently tolerating well?
- How do we progressively build from there?
- What’s the strength, mobility, and movement quality this person needs to get back to what they actually want to do? Hiking, golfing, playing with grandkids, working out?
That typically looks like graded strength training around the joint, controlled range-of-motion work, and load management (adjusting volume and intensity, not eliminating activity altogether). It’s a planned progression, not pushing through the pain. But it’s also not avoiding anything that causes discomfort.
A patient with knee arthritis who’s been avoiding stairs and walks isn’t preserving their knee, they’re likely losing quad strength, hip control, and overall conditioning, all of which make the knee feel worse over time. The better path is usually a structured, appropriately dosed strengthening program that respects the joint’s current tolerance while deliberately building it up.
Arthritis is a legitimate structural reality for a lot of people, and I’m not suggesting anyone should train through sharp or worsening pain. But chronic, low-grade “I have arthritis so I should take it easy” thinking often leads to a downward spiral! Less movement→ less strength→less capacity→more pain→ less movement again. It’s a cycle!
The goal isn’t to protect the joint into fragility. It’s to build the joint, and the muscles around it, back into capability.
If you’re dealing with joint pain and aren’t sure whether to push through it or back off, that’s exactly the kind of question a movement-focused PT evaluation can answer. Let’s figure out what your joint can handle and build a plan to get you back to doing what you love.
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Dr. Rachel Atufunwa, PT, DPT