Posterior tibial tendon: returning to sport step by step
Pain on the inner side of the ankle and the arch of the foot, sometimes with a flattening arch, aggravated by running or standing on tiptoe.
Why it happens
Flat foot or marked pronation, increase in volume, worn shoes, uneven surfaces.
Coming back in four stages
- 1
Short flat walks with stable shoes, according to your healthcare professional’s advice.
- 2
Calf and foot strengthening prescribed or approved by your physiotherapist, possibly insoles.
- 3
Alternating walking and running on flat ground, without camber or uneven terrain.
- 4
Easy continuous running, then varied terrain and speed gradually.
Move on to the next stage after 2 sessions in a row with discomfort of 2 out of 10 or less and no pain the next day. Each stage usually lasts 1 to 2 weeks, depending on your healthcare professional’s advice. For the tibialis posterior, rising onto the toes of the injured foot the next day must remain possible and pain-free on the inside of the ankle.
Movements to postpone
Strengthening exercises
Ankle inversion with band
Seated, band around the forefoot, turn the sole inwards slowly then return over 3 seconds.
To start: 3 sets of 15, slowly, once a day.
Variations, mistakes and progression
- Easier
- No band, or a very light band.
- Harder
- Stronger band, with a 2-second pause at the end.
- Common mistakes
- Turning the knee instead of the foot.
- Letting the band snap back.
- Moving on
- When 3 × 20 is easy with the strongest band.
Short-foot exercise
Seated or standing, draw the ball of the foot towards the heel without curling the toes, as if doming the arch. Hold 5 seconds.
To start: 10 contractions of 5 seconds, twice a day.
Variations, mistakes and progression
- Easier
- Seated, foot resting without body weight.
- Harder
- Standing on one foot, then balancing while keeping the arch lifted.
- Common mistakes
- Curling the toes instead of shortening the foot.
- Lifting the heel.
- Moving on
- When you can keep the arch lifted for 10 seconds standing on one foot.
Heel raises
Standing, rise on both feet and lower slowly over 3 seconds. Keep the knee straight, then bent to work the other part of the calf.
To start: 3 sets of 12, 3 seconds down, every other day.
Variations, mistakes and progression
- Easier
- Seated on a chair, a light weight on your knees.
- Harder
- Heels over the edge of a step, to go lower.
- Common mistakes
- Bouncing at the bottom instead of controlling the way down.
- Rising higher on one side than the other.
- Moving on
- When 3 × 15 is easy with no discomfort the next day: move on to single-leg raises.
Single-leg balance
Stand 30 seconds on one foot, knee slightly bent. Then with eyes closed, then on a cushion or unstable surface.
To start: 3 holds of 30 seconds per leg, every day.
Variations, mistakes and progression
- Easier
- One hand on a chair, or the tip of the free foot on the floor.
- Harder
- Eyes closed, then on a cushion, then throwing a ball against a wall.
- Common mistakes
- Knee straight and locked.
- Looking at your feet instead of a point ahead.
- Moving on
- When you can hold 30 seconds without putting the other foot down, as on the healthy side.
Single-leg heel raises
Same movement on one foot, lowering over 3 seconds, a light hand on a wall if needed. Add a loaded backpack very gradually.
To start: 3 sets of 8 to 10 per leg, 3 seconds down, every other day.
Variations, mistakes and progression
- Easier
- Rise on both feet and lower on one.
- Harder
- On a step with the heel over the edge, then with a loaded backpack.
- Common mistakes
- Leaning too much on the wall.
- Bending the knee to cheat on height.
- Moving on
- When you can do 20 to 25 raises in a row on the injured leg, roughly as many as on the other.
The doses are starting points. Stay at 2 out of 10 discomfort at most, during and the next day; otherwise switch to the easier version or go back to the previous exercise.
When to stop and see a professional
Limping, clear flattening of the arch or pain that gets worse despite rest: see a doctor.
Rehab’s advice
Stable shoes, flat ground, no cambered surfaces at first. Have your foot support assessed by a physiotherapist or podiatrist.
What the Rehab plan does for this injury
The plan starts at 30% of your previous training volume and builds up to 80%, with a consolidation week every three weeks. If your discomfort reaches 5 out of 10, it stops and refers you to your doctor or physiotherapist.