Patellar tendinopathy

What it is

The patellar tendon is the thick cord running from the bottom of your kneecap down to the bump on your shin. It is what transmits the force of your quadriceps into the ground every time you jump and every time you land. In tendinopathy the fibres in one small part of that tendon, almost always right at the lower tip of the kneecap, become disorganised and thickened, and that spot becomes painful under load. It is not a classic hot inflammation, which is why complete rest tends to make it feel better for a fortnight and then just as bad in the first week back.

How volleyball causes it

It is the landing, not the jump. Every time you land from a spike or a block, your quadriceps contracts hard while it is being lengthened, and the patellar tendon takes several times your body weight in a fraction of a second. An outside hitter or a middle can take well over a hundred max-effort landings in a single session, and on a sprung wooden court none of that force gets absorbed by the surface. The injury usually appears after a jump in load rather than during steady high load: preseason, a jump serve added to your game, a tournament weekend, a move from beach to indoor, or a switch to a position that blocks every rotation.

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What it feels like

• A pinpoint sore spot on the bottom tip of the kneecap that you can find with one fingertip
• Sore at the start of warm-up, fades or disappears once you are properly warm, then comes back worse two hours later or the next morning
• First steps out of bed feel stiff and sore at the front of the knee
• Worse going down stairs, squatting, and on the landing rather than the take-off
• Pain level tracks how much you jumped the day before, not how much you did today
• A slow single-leg squat on a decline, or off the edge of a step, reproduces the exact spot

Stop and get it seen if

• A sudden pop or tearing feeling at the front of the knee during a jump, followed by not being able to straighten the knee or lift the leg straight, or the kneecap sitting visibly high. That is a tendon rupture and needs emergency care the same day.
• Swelling that fills the whole joint, or the knee giving way, catching or locking. Tendons do not do that, so the working assumption is wrong and it needs assessing.
• Pain that is there at rest and at night, unrelated to how much you played, especially with fever, feeling generally unwell, or unexplained weight loss.
• In a player roughly 10 to 16 years old, an exquisitely tender and visibly swollen bump on the shin or at the bottom of the kneecap. That is growth plate related, not adult tendinopathy, and it is managed differently.

What recovery usually looks like

Stages, not a schedule. Everyone moves through these at their own pace, and the ranges are wide because real recoveries are.

1. 1. Settle the irritation

   1 to 4 weeks

   Bring the daily ache and morning stiffness down while keeping the tendon working, because tendons get worse with total rest.

   • Morning stiffness in the first few steps is shorter and milder
   • Pain that comes on during activity settles back to baseline within about 24 hours instead of building day on day
   • Stairs and getting out of a chair no longer need guarding
   • Jump volume has been cut to a level the knee can absorb without a next-morning spike

2. 2. Rebuild tendon capacity

   6 to 12 weeks

   Build genuine quadriceps and tendon strength with heavy, slow, progressive loading, plus the hip and calf work that shares the landing.

   • Heavier strength work produces a stable, predictable next-day response rather than an escalating one
   • The strength gap between the sore leg and the good leg is visibly shrinking
   • A decline squat at the same depth hurts less than it did a month ago
   • Able to train strength on consecutive days without a flare

Ready to play again when

• First steps in the morning are pain-free or trivially stiff
• A slow single-leg decline squat is pain-free or mildly sore and does not flare the following day
• Quadriceps strength on the injured side is within roughly ten percent of the other leg
• Two or three full-jump-volume sessions completed with the same next-morning feeling each time
• Approach jump height is close to your normal and you are landing evenly on both legs

Keeping it from coming back

This is ordinary training, so unlike the rest of this page it does tell you what to do.

• Heavy slow squats and leg press through full range, twice a week, all year. Tendon capacity is built by heavy slow load, and the off-season is when it can be built without competing with jump volume.
• Isometric holds before practice: a Spanish squat with a band behind the knees, or a wall sit held at about 60 degrees. This reliably dulls tendon pain for a couple of hours and lets you train properly rather than limping through.
• Nordic hamstring curls and Romanian deadlifts, so your landing is shared between hamstring and quadriceps instead of dumped entirely on the front of the knee.
• Straight-leg and bent-knee calf raises. An ankle that can absorb load takes work off the knee on every landing.
• Practise quiet landings: hips back, chest up, knee tracking over the middle of the foot, absorbing over a longer range instead of a stiff-legged thump. Film it from the front once a season.
• Count your jumps, at least roughly. Sudden jumps in weekly jump volume are what break tendons, not steady high volume.