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Ankle · Lateral Ankle Sprain / Chronic Ankle Instability

Ankle Sprain

You injured the ligaments on the outside of your ankle, usually by rolling the foot inward. It’s one of the most common ankle injuries. When it doesn’t fully recover, the ankle can keep feeling unstable and ‘give way’.

The ligaments and the position-sense (proprioception) in the ankle get knocked out by the sprain. If you only wait for the pain to settle and never retrain balance and the muscles that resist rolling (the peroneals on the outside), the ankle stays under-protected, so it rolls again, and again. That’s why retraining BALANCE is the core of the fix, not just resting it.

How it typically shows up

Pain on the outside of the ankle after rolling/twisting it inward, with lateral swelling and a wobbly, give-way feeling on single-leg balance, once fracture, Achilles rupture, high ankle (syndesmosis), inside-ankle (PTTD), and front-of-ankle arthritis are excluded. 'Giving way' or repeat sprains over a year mark the chronic-instability (CAI) form of the same condition.

How long recovery takes

Early on: protect it, move it gently, and start putting weight through it as it feels ready. Then strengthen the ankle (especially turning the foot outward) and retrain your balance, the most important part: standing on the one leg, then with eyes closed, then on something soft and wobbly. A first sprain usually settles roughly: mild in 1-2 weeks, moderate in 3-6 weeks, severe in 6-12 weeks or more. Balance work pays off over about 4-6 weeks (a few times a week). A brace early on helps, but a brace alone isn’t the fix. The strength and balance work is what makes it stick.

The phased recovery approach

  1. Phase 1 · 1–2 weeks

    Calm

    Settle the pain and swelling first and start moving it gently, the ankle has to calm before it can rebuild.

    What you get back: easier walking and ankle movement.

    • Ankle Pumps — 2–3 sets × 15–20 reps · Sit or lie down with your injured leg supported and relaxed.
    • Ankle Alphabet — 2–3 sets × 1–2 reps · Sit down and lift the injured foot off the floor.
    • Calf Stretch / Knee-to-Wall Mobiliser — 2–3 sets × 20–30s hold · Stand facing a wall with the injured foot forward, toes a few inches from it.
    • Toe Curls / Towel Scrunch — 2–3 sets × 10–15 reps · Sit with your foot flat, on a towel if you have one.

  2. Phase 2 · 2–5 weeks

    Rebuild

    Build the strength that stops the ankle rolling, turning the foot outward is the move that protects it.

    What you get back: an ankle that holds steady on uneven ground.

    • Calf Stretch / Knee-to-Wall Mobiliser — 2 sets × 20–30s hold · Stand facing a wall with the injured foot forward, toes a few inches from it.
    • Self-Resisted Eversion Reps — 3 sets × 10–15 reps · Sit with the injured foot relaxed and use your other foot, a wall, or a table leg as resistance.
    • Band Eversion — 3 sets × 10–15 reps · Sit with both legs out and loop a band around both forefeet, or around the working foot with the other end anchored on the inside.
    • Short-Foot / Arch Raise — 3 sets × 10–15 reps · Sit or stand with your foot flat on the floor.

  3. Phase 3 · 3–6 weeks

    Back to running

    Retrain the ankle’s balance and prove it can land and hold steady before you trust it with running.

    What you get back: running again on an ankle that holds its landings.

    • Single-Leg Balance, Eyes Closed — 3 sets × 30–40s hold · Stand next to a wall you can reach for safety.
    • Single-Leg Balance on a Cushion — 3 sets × 30–40s hold · Place a pillow or folded towel on the floor next to a wall.
    • Wobble-Board Balance — 3 sets × 30–40s hold · Stand on a wobble board or balance disc, keeping the edges off the floor.
    • Single-Leg Balance — 3 sets × 30–40s hold · Stand next to a wall you can reach for balance.

  4. Phase 4 · 1–3 weeks

    Back to daily life

    Lock in the balance and ankle strength that keep walking, stairs, and uneven ground steady when sport isn’t the goal.

    What you get back: stairs and uneven ground without the wobble.

    • Graded Walking — 1 sets × 600–1800s hold · Start on flat, predictable ground before adding hills or uneven surfaces.
    • Single-Leg Balance, Eyes Closed — 3 sets × 30–40s hold · Stand next to a wall you can reach for safety.
    • Single-Leg Balance on a Cushion — 3 sets × 30–40s hold · Place a pillow or folded towel on the floor next to a wall.
    • Single-Leg Balance — 3 sets × 30–40s hold · Stand next to a wall you can reach for balance.

  5. Phase 5 · 3–6 weeks

    Back to the gym

    Rebuild the loaded leg strength and steady balance the gym asks for so squats and lunges don’t make it give way.

    What you get back: loaded lower-body training again.

    • Wobble-Board Balance — 3 sets × 30–40s hold · Stand on a wobble board or balance disc, keeping the edges off the floor.
    • Single-Leg Balance on a Cushion — 3 sets × 30–40s hold · Place a pillow or folded towel on the floor next to a wall.
    • Single-Leg Balance, Eyes Closed — 3 sets × 30–40s hold · Stand next to a wall you can reach for safety.
    • Single-Leg Balance — 3 sets × 30–40s hold · Stand next to a wall you can reach 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

  • Balance is the real medicine here

    Balance training is the best-evidenced way to stop the ankle rolling again. Make it harder by closing your eyes then standing on something soft, not by adding weight.

  • Move it and load it, don’t just rest

    Protect it early with a brace or tape, but start bearing weight as it tolerates and moving it gently. Resting until all pain goes leaves it wobbly and prone to rolling.

  • A brace is optional support

    A brace can support higher-risk activity, but balance and strength work do the rebuilding. Use one only if it is available and comfortable.

Common questions

Should I just rest it until it stops hurting?
No, that’s exactly what leads to a wobbly ankle that keeps rolling. Gentle early movement and weight-bearing, then balance retraining, is what protects you from the next sprain.
Will a brace fix it?
A brace helps early and is good for prevention, but a brace on its own does NOT rebuild the balance and strength. The exercises do. Use it as support while you train, not instead of training.
Why so much balancing on one leg?
The sprain damages your ankle’s sense of where it is in space. Retraining that (single-leg, eyes closed, on a cushion) is the single best-evidenced thing for stopping it happening again.
Is some discomfort during the exercises okay?
Up to about 5/10 is fine if it settles by the next morning AND the swelling doesn’t go up after a session. If pain lingers or it swells more, ease off next time.

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