Achilles tendinopathy

What it is

The Achilles is the thick cord that joins your two calf muscles to your heel bone, and it is the only route those muscles have to the ground. Tendinopathy means the tendon has been loaded faster than it can repair itself, so the fibres become disorganised and the cord thickens, gets stiff and hurts. Most volleyball cases sit in the mid-portion, a few centimetres above the heel, where you can often pinch a tender thickened spot between finger and thumb; a smaller group sit right where the tendon attaches to the heel bone, which behaves differently and reacts badly to being stretched. It is not classic inflammation, which is why the older name tendonitis is inaccurate and why it does not settle with rest alone.

How volleyball causes it

Every jump you take is paid for by the Achilles, and middles and opposites routinely clear 100 to 200 jumps in a hard two hour session. Block jumps are the worst offender, because they start from a standstill or a quick shuffle with no real approach, so the calf and Achilles have to produce most of the force themselves instead of sharing it with a swinging arm and a loaded hip, and blockers repeat them every rally. The plant step of a spike approach loads it the other way, driving the ankle into a deep bend while the calf fights to slow your body down, which is exactly the lengthening load tendons complain about. Beach multiplies all of it: the heel sinks so the ankle travels through more range, sand returns almost none of the elastic energy hardwood gives back, and barefoot play removes the heel lift built into your court shoe, so a sand session costs the tendon far more per jump than the same count indoors and the spring indoor-to-sand crossover produces a wave of these.

BlockingAttackingServing

What it feels like

• Stiff, painful first steps out of bed that ease after a few minutes of walking, and are worse the morning after a jumping session.
• Pain that warms up and fades during practice, then returns harder a few hours later or the next day.
• A tender, thickened spot roughly two to six centimetres above the heel bone that you can feel between finger and thumb.
• Hopping on that leg or a single-leg heel raise reproduces the pain far more reliably than walking does.
• Push-off feels flat and your block jump is lower without you deciding to jump lower.
• A creaky or squeaky sensation in the cord first thing in the morning.

Stop and get it seen if

• A sudden pop or the sense of being kicked in the back of the leg, followed by an inability to push off or rise onto the toes. That is a rupture until proven otherwise and needs same-day assessment.
• A calf that becomes swollen, warm, hard and painful at rest, especially after a long flight, surgery, or time in a boot or cast. A blood clot can imitate tendon pain and needs urgent review.
• Fever, spreading redness or heat over the tendon, or any break in the skin over it. That points to infection rather than overload.
• In a player still growing, roughly ages nine to fifteen, pain located on the heel bone itself and tender when you squeeze the sides of the heel. That is usually a growth plate problem, not tendinopathy, and it is managed differently.
• Both Achilles tendons becoming painful at once, particularly alongside unexplained morning back or joint stiffness, or an Achilles that turned painful shortly after finishing a course of antibiotics. Those patterns need medical review, not a loading plan.

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 3 weeks

   Bring daily pain and morning stiffness down by cutting the fast, springy load while keeping the calf working.

   • Morning stiffness drops from minutes to under a minute.
   • Pain stops building across the day and across consecutive days.
   • Jumping and hopping are out, but walking, cycling and slow heavy calf work are usually comfortable.
   • A temporary heel lift or a shoe with more heel drop noticeably eases it, which is a clue about the diagnosis rather than a cure.

2. 2. Rebuild the tendon's capacity

   6 to 12 weeks

   Load the tendon progressively heavier and slower so it rebuilds tolerance. This is the part people skip, and skipping it is why it comes back.

   • Heavier, slower calf loading is tolerated with pain staying low during and settling by the next morning.
   • Single-leg heel raise height and repetitions climb toward the uninjured side.
   • Morning stiffness is absent on most days.
   • Strength is still noticeably behind on the injured side, which means this phase is not finished no matter how good it feels.

Ready to play again when

• Single-leg heel raise height and repetitions close to the uninjured side, full range, with no flare the next morning.
• Ten to fifteen minutes of continuous jumping and landing without pain climbing during the session.
• Morning stiffness gone, and it does not reappear the day after a hard session.
• Block jumps and approach jumps at match effort with the same take-off height on both sides.
• You are no longer thinking about the tendon between rallies.

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 calf raises twice a week, both straight-knee standing and bent-knee seated, through full range off a step. The bent-knee version loads the soleus, which carries most of the landing force in blocking and is usually the weaker link.
• Build a genuine single-leg heel raise capacity, in the region of 25 clean full-range repetitions a side, and retest monthly. Losing repetitions on one side shows up before pain does.
• Isometric calf raise holds in mid-range on heavy jumping days. They tend to quieten tendon pain for a few hours and let you train without adding more fast, springy load.
• Count jumps through preseason and avoid large week-to-week jumps in volume. Double days, a new blocking role and adding a jump serve are the three changes that most often precede a first flare.
• Knee-to-wall ankle mobility work if your ankle bend is limited or uneven side to side. A stiff ankle pushes load into the heel cord and changes how you absorb a block landing.
• Ramp into sand deliberately with short, spaced-out beach sessions rather than switching over in a week. Sand takes the ankle through more range, gives back almost no elastic energy and leaves you with no heel lift, so the crossover weeks are the highest-risk period of your year.