Back on Track: 7 Key Measures to Hit Before You Return to Running After an Ankle Sprain

Ankle sprains are one of the most common injuries we see in runners, and they're also one of the most underestimated. Because the pain often settles within a week or two, it's tempting to lace up your trainers and get straight back out there. The problem is that feeling better and being ready are not the same thing.

Research suggests that up to around 40% of people who sprain their ankle go on to develop ongoing problems such as recurrent sprains, a feeling of the ankle "giving way", or persistent pain. The biggest predictor of spraining your ankle is having sprained it before, and a rushed return is a big part of that story.

The good news is that most of this is preventable. Rather than returning based on time alone, we use a set of simple, measurable criteria to judge when an ankle is genuinely ready to run. Here are the key ones.

1. Pain and swelling have settled

Before anything else, your ankle should be comfortable with everyday life. As a guide, you should be able to walk briskly for 30 minutes with no more than minimal discomfort (around 2 out of 10), and your ankle shouldn't be more painful or swollen the following morning. Swelling that returns after activity is your body's way of telling you the tissues aren't ready for more load yet.

2. You've got your ankle movement back

Running demands a surprising amount of ankle bend. After a sprain, stiffness is very common and often goes unnoticed.

The test: the knee-to-wall (weight-bearing lunge) test. Stand facing a wall, place your foot a few centimetres away, and bend your knee forward to touch the wall without lifting your heel. Move your foot further back until you can just touch. Measure the distance from your big toe to the wall.

The target: within about 2cm of your uninjured side. A restricted ankle forces other areas, like your knee, foot, and Achilles, to work harder, which can lead to new problems.

3. Your balance is back to normal

Ligaments contain sensors that tell your brain where your ankle is in space. A sprain disrupts this, which is why your balance often feels "off" afterwards, and why poor balance is strongly linked to re-injury.

The test: stand on your injured leg for 30 seconds with your eyes open, then try it with your eyes closed.

The target: you should be able to hold both steadily and with similar control to your other side. For a more detailed assessment, we use the Y-Balance Test in clinic, looking for reach distances within about 90% of the uninjured leg.

4. Your calves are strong enough

Every running stride puts several times your body weight through your calf and Achilles. Calf strength is one of the most commonly overlooked parts of ankle rehab.

The test: single-leg calf raises. Stand on one leg, rise up fully onto your toes and lower slowly, at a steady pace, until you can't complete a full-height repetition.

The target: at least 90% of the repetitions you can manage on your uninjured side, and ideally 25 or more. If you're well short of this, running will likely feel heavy and your ankle will fatigue quickly.

5. Your ankle is strong in every direction

Most sprains happen when the foot rolls inwards, so the muscles on the outside of the ankle (the peroneals) have a big job to do in protecting you. Hip strength matters too, as weak hip muscles reduce your control over where your foot lands. We'll often test these in clinic with a handheld dynamometer, looking for close to symmetrical strength between sides.

6. You can hop with confidence

Running is essentially a series of single-leg hops. If you can't hop comfortably, you're not ready to run.

The test: start with 10 to 20 continuous hops on the spot on your injured leg, then progress to hopping forwards and side to side.

The target: pain-free, well controlled hopping with a soft, quiet landing. In clinic, we use hop tests for distance and the side hop test, again aiming for at least 90% of your uninjured side.

7. You feel ready

This one is easy to dismiss, but it matters. If you're anxious about your ankle giving way, you'll tend to move differently, which can increase your risk of further injury. Confidence usually follows naturally once the physical measures above are in place, and it's worth paying attention to if it doesn't.

Hit the targets? Build back gradually

Passing these tests doesn't mean going straight back to your usual 10k. Your tissues still need time to adapt to the repetitive load of running. A structured walk-run programme is the safest way back. This could start with short intervals such as 1 minute jogging and 1 minute walking, repeated for 15 to 20 minutes on flat, even ground. Build up gradually over several weeks, run every other day at first, and keep an eye on how your ankle responds the next morning.

Keep doing your balance and strength work alongside your running too. Studies consistently show that continuing balance training for several months after a sprain significantly reduces the risk of it happening again.

When to get it checked

Seek an assessment if:

• You can't put weight on your ankle, or there was significant bruising and swelling at the time of injury

• Your ankle keeps giving way or feels unstable

• Pain or swelling hasn't improved after a few weeks

• You're struggling to meet the targets above despite doing your exercises

How we can help

At Cliff Villages Physiotherapy in Waddington, we regularly help runners across Lincoln and the surrounding villages recover from ankle sprains and get back to running with confidence. We'll assess your ankle against each of these measures, identify exactly what's holding you back, and build a personalised rehab and return-to-run plan around your goals, whether that's getting back to parkrun or training for your next race.

Ready to get back on track? Get in touch to book your assessment today.