Patellar Tendonitis from Squatting: How Lifters Manage It
Patellar tendonitis — often called "jumper's knee" — shows up a lot in lifters who squat frequently, and it has a distinct enough pattern that most people who've dealt with it recognize the description immediately: a focused ache right at the bottom of the kneecap, worse with squatting and jumping, that tends to warm up during a session and then stiffen up afterward. If what you're feeling doesn't match this pattern, sharp vs. dull knee pain may be a better starting point.
This article is general information, not a diagnosis. If you suspect you're dealing with tendonitis, a physical therapist or sports medicine doctor is the right person to confirm it and build a recovery plan — what follows is how lifters commonly manage training around it once it's been identified, not a substitute for that.
Why squatting is a common trigger
The patellar tendon connects the kneecap to the shin and does a lot of work absorbing force every time you descend into a squat. High volume, rapid increases in load, and limited recovery time between heavy sessions are the most common contributors — it's typically a training-load problem more than a technique-flaw problem. Tracking your working weights against your estimated squat max can help you spot when volume is climbing faster than your knees are adapting.
How lifters commonly manage training around it
Most approaches focus on adjusting load and volume rather than stopping training entirely: reducing squat frequency temporarily, working in a range of motion that doesn't provoke the specific pain point, and building the tendon's tolerance back up gradually rather than testing it with heavy singles too soon. Isometric holds at a comfortable knee angle are a common tool physical therapists use in early-stage management.
External support and warmth through the joint — the same benefit a knee sleeve provides for general knee comfort — is often part of a return-to-training plan, mainly because keeping the joint warm through a session tends to reduce discomfort during the work, even though it isn't treating the tendon itself.
The takeaway
If the pattern above sounds familiar, get it looked at before assuming it'll resolve on its own — tendon issues respond much better to early, structured management than to being trained through. Once you're working a return-to-squat plan, 7mm knee sleeves are a common addition for warmth and comfort through the joint during training sessions.