Patellar Tendinopathy (Jumper’s Knee)

Physiotherapist assessing patellar tendinopathy below the kneecap during tendon examination

Assessment helps identify patellar tendon load tolerance.

Patellar tendinopathy, also called jumper’s knee, causes pain in the patellar tendon just below the kneecap. It often affects people who jump, sprint, squat, land, or change direction in sport.

The patellar tendon links your kneecap to your shinbone. It helps transfer force when you run, jump, land, climb stairs, and rise from a chair. Patellar tendinopathy is one cause of front of knee pain and belongs in the broader sports knee injury group.

A physiotherapist can assess your tendon, check your training load, and guide a staged strengthening plan. This page explains the symptoms, causes, assessment, treatment, and return-to-sport steps for tendinopathy affecting the patellar tendon.

Quick Summary

Pain usually sits just below the kneecap.
Jumping, landing, sprinting, stairs, and heavy squats often aggravate it.
Rest may calm pain, but it does not rebuild tendon capacity.
Progressive strengthening and load management are usually central.
Return to sport should include graded hopping, landing, and jumping drills.

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What Is Patellar Tendinopathy?

Patellar tendinopathy is a painful overload problem in the patellar tendon. The pain usually sits at the lower edge of the kneecap or in the upper tendon below it.

The condition is not usually a simple inflammation problem. Instead, symptoms often occur when tendon load rises faster than the tendon can tolerate. Rehab aims to settle pain, rebuild strength, and restore jumping or sport load in stages.

What Causes Patellar Tendinopathy?

Patellar tendinopathy usually develops when the tendon does more work than it is ready for. This may follow a sudden rise in jumping volume, sprint work, gym loading, hill running, or a fast return after time off.

The patellar tendon stores and releases energy during jumping, landing, and squatting. Repeated high-load work can flare the tendon when strength, recovery, sleep, or landing control does not match the training demand.

Common contributing factors

sudden increases in training volume or intensity
frequent jumping, sprinting, or change-of-direction training
reduced quadriceps, gluteal, or calf strength
stiff landing technique or poor knee control
reduced ankle mobility or calf capacity
poor recovery, low sleep, or limited training variation

For broader loading advice, see our guides to soft tissue injury healing and injury prevention programs.

What Are the Symptoms of Patellar Tendinopathy?

Patellar tendinopathy usually causes local pain below the kneecap. Symptoms may warm up during activity, then return after training or the next morning.

pain below the kneecap with jumping or squatting
pain when walking downstairs or running downhill
stiffness after sitting, rest, or first thing in the morning
reduced jump power or landing confidence
symptoms that flare after training load increases

Other knee problems can also cause pain at the front of the knee. Related conditions include patellofemoral pain syndrome, meniscus injury, patella enthesopathy, and Osgood-Schlatter disease.

How Is Patellar Tendinopathy Assessed?

A physiotherapist can assess patellar tendinopathy through your symptom history, tendon palpation, strength testing, and tendon-loading tasks. Imaging may help in some cases, but scan findings do not always match pain.

Your assessment may include squats, step-downs, hopping, jumping, landing control, and sport-specific testing. This helps identify how much load your tendon can currently tolerate.

Rehab usually progresses through stages

Settle symptoms: reduce the most painful jumping or sprint load for a short period.
Build strength: start controlled isometric or slow loading exercises.
Restore tendon capacity: progress squats, split squats, step-downs, or leg press work.
Reload sport skills: add hopping, landing, jumping, and agility drills gradually.
Return to sport: use symptom response and performance testing to guide the final steps.

How Do You Treat Patellar Tendinopathy?

Patellar tendinopathy treatment usually focuses on progressive strengthening and load management. Rest may reduce symptoms for a short time, but a staged program is usually needed to rebuild tendon capacity.

Load management: adjust jumping, sprinting, and gym load while symptoms settle.
Isometric exercises: use sustained holds to introduce tendon load.
Slow, heavy strengthening: progress squats, split squats, step-downs, and leg presses.
Energy storage drills: add hopping, jumping, and landing work later.
Movement retraining: improve landing control, trunk position, and lower-limb alignment.
Adjunct options: shockwave or dry needling may be considered with exercise, not instead of it.

Recent research supports progressive tendon-loading exercise as a useful non-surgical option for many people with patellar tendinopathy. However, no single exercise type suits every tendon, so your program should match your symptoms, sport, and current capacity.

For sport progressions, see our return-to-sport testing guide and sports physiotherapy information.

Decline squat exercise for patellar tendinopathy tendon strengthening rehabilitation

Heavy slow strengthening can improve tendon load tolerance.

Can Patellar Tendinopathy Heal Without Surgery?

Yes. Many people improve without surgery when they follow a structured rehab plan and adjust tendon load. Surgery is usually considered only when symptoms continue after a thorough course of non-surgical care.

Good progress takes patience. Tendons adapt slowly. Your plan should use consistent loading, symptom monitoring, and realistic return-to-sport steps.

Can You Keep Training With Jumper’s Knee?

Many people can keep training with modified load. The key is to reduce the painful tendon spikes while keeping enough strength and fitness work in the week.

Repeated flare-ups suggest the tendon is not tolerating the current plan. In that case, reduce jump volume, limit painful deep knee loading, and rebuild in clear stages.

When Should You See a Physiotherapist?

Consider seeing a physiotherapist if pain below your kneecap lasts more than a few weeks. Assessment is also sensible if symptoms limit sport, stairs, squats, running, or jumping.

Seek earlier advice if symptoms are worsening, you cannot train normally, or you are unsure whether the pain is tendon-related. A clear assessment can help you avoid guessing, over-resting, or progressing too quickly.

Return to jumping after patellar tendinopathy rehabilitation and physiotherapy

Sport rehab should restore landing confidence before full return.

Patellar Tendinopathy FAQs

Why do I have pain below my kneecap?

Pain below the kneecap often comes from overload of the patellar tendon. This can happen when jumping, landing, running, squatting, or training volume rises faster than the tendon can tolerate.

Is jumper’s knee the same as patellar tendinopathy?

Yes. Jumper’s knee is the common name for patellar tendinopathy. The term reflects how often the condition affects jumping sports, but it can also affect runners, gym users, and active workers.

What exercises help patellar tendinopathy?

Useful exercises may include isometric knee extension holds, slow squats, split squats, step-downs, leg press work, and later hopping or jumping drills. Exercise choice should match your symptoms and tendon tolerance.

How long does patellar tendinopathy take to improve?

Recovery varies. Some recent flare-ups improve within weeks. Long-standing cases can take several months of steady loading, training changes, and sport-specific progressions.

Should I stretch a sore patellar tendon?

Stretching may help if nearby muscles feel tight, but aggressive stretching can irritate some tendons. Strength, load control, and graded sport drills are usually more important than stretching alone.

When is imaging useful?

Imaging may help if symptoms are severe, persistent, unclear, or not improving as expected. However, ultrasound or MRI findings do not always match pain, so clinical assessment remains important.

Related Knee and Tendon Guides

What Should You Do Next?

If patellar tendon pain is affecting sport, gym training, or daily life, consider booking a physiotherapy assessment. Your physiotherapist can help confirm the likely pain source, review your training load, and plan a staged return to activity.

Early guidance may reduce repeated flare-ups and help you progress with more confidence.