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Calf / lower leg · Mid-Portion Achilles Tendinopathy

Mid-Portion Achilles Tendinopathy

Your Achilles tendon, the thick cord at the back of your ankle, is irritated and overloaded a few centimetres above the heel. Despite the old name ending in ‘-itis’, this isn’t active inflammation and nothing is torn through. It’s a wear-and-load problem that improves by rebuilding the tendon’s capacity.

The tendon got loaded faster than it was conditioned for, whether a jump in running/walking/hills, new shoes, or returning to sport too quickly. That’s why the fix is progressive loading (not rest): a calmer isometric start, then heavy slow strengthening and eccentric heel drops over about 12 weeks.

How it typically shows up

Gradual-onset pain and stiffness in the Achilles cord 2-6cm above the heel, worst for the first steps in the morning and with loading, rather than pain in the calf muscle or directly at the heel-bone attachment. This mid-portion tendon load problem responds to progressive loading.

How long recovery takes

Tendons get stronger with the right exercise, but slowly. Expect roughly a 12-week program, with that morning stiffness easing as you go. Slow, strong calf work is what helps most, building back toward running and impact as the tendon tolerates load.

The phased recovery approach

  1. Phase 1 · 1–3 weeks

    Calm

    Calm the irritable tendon down first, it has to quiet before it can take real load.

    What you get back: calmer, looser mornings.

    • Ankle Circles — 1–2 sets × 8–12 reps · Sit or lie down with your leg supported.
    • Ankle Pumps — 1–2 sets × 8–12 reps · Point your foot down away from you.
    • Isometric Calf Hold (mid-range) — 3–5 sets × 20–45s hold · Rise to a comfortable mid-range on both feet, or on the sore one.
    • Isometric Calf Push (seated) — 3–5 sets × 20–45s hold · Sit with your foot flat on the floor or against a wall.

  2. Phase 2 · 6–12 weeks

    Rebuild

    Load the tendon heavier and slower so it rebuilds real strength over the weeks.

    What you get back: a strong, loaded calf raise.

    • Ankle Circles — 1–2 sets × 8–10 reps · Sit or lie down with your leg supported.
    • Ankle Pumps — 1–2 sets × 8–10 reps · Point your foot down away from you.
    • Eccentric Heel Drop — 3–4 sets × 12–15 reps · Rise onto the toes of both feet.
    • Loaded Calf Raise — 3–4 sets × 12–15 reps · Hold a weight or use a calf machine, starting with your heels at floor level.

  3. Phase 3 · 4–12 weeks

    Back to running

    Build the tendon’s spring back so it can run and jump without flaring.

    What you get back: running and jumping.

    • Ankle Circles — 1–2 sets × 8–10 reps · Sit or lie down with your leg supported.
    • Ankle Pumps — 1–2 sets × 8–10 reps · Point your foot down away from you.
    • Eccentric Heel Drop — 3–4 sets × 12–15 reps · Rise onto the toes of both feet.
    • Loaded Calf Raise — 3–4 sets × 12–15 reps · Hold a weight or use a calf machine, starting with your heels at floor level.

  4. Phase 4 · 1–3 weeks

    Back to daily life

    Keep loading the tendon so standing, stairs, and walking stay pain-free.

    What you get back: standing, stairs, and walking.

    • Graded Walking — 1 sets × 600–1800s hold · Walk on flat, predictable ground.
    • Ankle Circles — 1–2 sets × 8–10 reps · Sit or lie down with your leg supported.
    • Ankle Pumps — 1–2 sets × 8–10 reps · Point your foot down away from you.
    • Eccentric Heel Drop — 2–3 sets × 12–15 reps · Rise onto the toes of both feet.

  5. Phase 5 · 2–6 weeks

    Back to the gym

    Load the tendon to full gym strength before you add back any impact.

    What you get back: loaded calf training again.

    • Machine / Leg-Press Calf Raise (heavy) — 3–4 sets × 8–12 reps · Set up on a leg-press sled or standing calf machine.
    • Loaded Calf Raise — 3–4 sets × 8–12 reps · Hold a weight or use a calf machine, starting with your heels at floor level.
    • Backpack Calf Raise — 3–4 sets × 8–12 reps · Wear a backpack loaded with books or hold a household weight, with a fingertip on a wall for balance.
    • Single-Leg Heel Raise — 3–4 sets × 8–12 reps · Rest a fingertip on a wall for balance.

Exact exercises, sets and progression depend on your severity, equipment and goal — this is the shape of the program, not a one-size prescription.

What matters while you recover

  • How much pain is okay (the tendon rule)

    Some pain while loading is fine, up to 5/10, if it settles by next morning. Ease the load if it lingers or trends worse week to week. Tendons heal with load, not rest.

  • Earn the deeper heel drop

    The sore spot sits a few centimeters above the heel. Do floor-level heel raises while sore, add heel drops off a step later. Heel-bone pain is a different, shorter plan.

  • Slow but reliable

    Tendons respond well to loading but heal slowly, so give it around 12 weeks of consistent work. Morning stiffness easing is a good early sign. Nothing is torn.

Common questions

Should I rest it until it stops hurting?
No. Tendons need load to recover. Resting tends to make them weaker and more sensitive. The plan loads it progressively within a pain rule, rather than waiting for the pain to vanish first.
How much pain is okay during the exercises?
Up to about 5/10 during loading is fine, as long as it settles back to your normal by the next morning and isn’t getting worse week to week. If it lingers or climbs, ease the load.
Where should this pain sit?
The tenderest spot should be in the Achilles cord a few centimetres above the heel. Pain directly where the tendon meets the heel bone is a different pattern with its own shorter-range loading plan.

Go deeper

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