Most Common Running Injuries in Singapore (How to Prevent Them)

Most running injuries in Singapore are not bad luck. They are overuse injuries, where the tissue was loaded faster than it was built to tolerate. Runner's knee, shin splints, and Achilles tendinopathy account for most of them, and nearly all share one fix: build load tolerance with strength training, and screen for the left-right asymmetry that quietly raises your risk before it ever becomes pain.

TL;DR

Singapore is a city of runners. The Standard Chartered Singapore Marathon drew more than 55,000 participants in 2024, and that is one event in a calendar full of them. If you want the full year mapped, our guide to running events in Singapore lays it out. The problem is that running, for all its benefits, has the highest injury rate of any common recreational activity.

How high is contested but consistently large. The landmark 2007 systematic review by van Gent and colleagues in the British Journal of Sports Medicine found lower-limb running injury rates ranging from 19.4% to 79.3%, depending on the population and how injury was defined. The honest summary is that something close to half of regular runners will be sidelined by a running injury in a given year, and the knee, lower leg, and foot take the heaviest load.

Here is the part the physiotherapy clinics that dominate this search rarely lead with: almost all of these are preventable, and the prevention is not more stretching or a fancier shoe. It is strength. The list below ranks the injuries we see most often in runners in Singapore's CBD, explains why each one happens, and points at the fix. The method section at the end explains how to prevent the lot, because they share more root causes than they look like they do.

1. Runner's knee (patellofemoral pain)

Runner's knee, clinically patellofemoral pain syndrome, is the most prevalent running injury there is. It presents as a dull ache around or behind the kneecap that worsens going downstairs, squatting, or sitting for long stretches, the so-called theatre sign. In the 2021 systematic review by Kakouris and colleagues, it was the single most prevalent running injury at 16.7%.

It is rarely a knee problem in isolation. The kneecap tracks badly when the structures that should control it, the quadriceps and the hip stabilisers, are too weak or fire in the wrong order. Weak hip abductors let the thigh collapse inward on each foot strike, which drags the kneecap off its groove thousands of times per run. Layer a sudden jump in mileage on top and the irritation never gets a chance to settle.

The prevention is strength, not rest. Hip-focused strengthening reduces patellofemoral pain more effectively than knee exercises alone, and it is one of the few running injuries with strong evidence behind a loaded, progressive approach. The broader picture is clearer still: across sports, Lauersen and colleagues found in 2018 that strength training cut overuse injuries by roughly half, with a clear dose-response. In practice that means loaded single-leg work, step-downs, split squats, and direct hip-abductor strengthening, two to three times a week, progressed in load over months rather than the token band walks most runners stop at.

This is where a screen earns its place. In our 4-Pillar Healthspan Assessment we run the Y-Balance Test, a single-leg reach test that exposes the exact hip-control and side-to-side deficits that feed runner's knee, well before they become pain. We went deeper on this in our note on why localised runner's knee treatment keeps failing: chase the kneecap and you keep missing the hip.

One caution. Pain that swells, locks, or makes the knee give way is not patellofemoral pain and needs a GP or sports doctor, not a strength programme. Mechanical runner's knee aches and grumbles; it does not catch or buckle.

2. Shin splints (medial tibial stress syndrome)

Shin splints, properly medial tibial stress syndrome, is the classic injury of the marathon buildup. We cover why they recur in our guide to shin splints in runners. It is a diffuse ache along the inner edge of the shin bone that is sore at the start of a run, eases as you warm up, then returns with a vengeance afterwards. It is one of the highest-incidence running injuries in the literature, and in new runners ramping volume for a first big race it is close to a rite of passage.

It is a bone-and-muscle overload, not an inflammation you can rest away. The tibia and the muscles that attach to it are being asked to absorb more impact than they have been conditioned for, usually because weekly mileage climbed too fast. Limited ankle mobility and weak calves make it worse by forcing the shin to do work the foot and ankle should be sharing.

Two levers prevent it. The first is load management: the long-standing guidance is to avoid increasing weekly mileage by much more than 10% at a time, because progressing distance by more than 30% over two weeks raises injury risk compared with staying under 10%. The second is strength, specifically calf and tibialis conditioning plus general lower-limb strength work, which raises the bone and tissue's tolerance for impact.

In practice we treat shin splints as a programming problem first. A runner who comes to us mid-flare gets their training load rebuilt deliberately while we load the calves and feet under control, often starting on pneumatic Keiser resistance so we can progress strength without the joint impact running already supplies. If you are timing a buildup, our piece on the best times to run in Singapore covers managing the heat that pushes people into doing too much, too soon.

The warning sign to respect: shin splints sit on the same continuum as a tibial stress fracture. Diffuse, broad soreness is usually shin splints. Sharp pain at one specific point on the bone, especially if it hurts at rest or at night, is a stress fracture until a doctor proves otherwise.

3. Achilles tendinopathy

Achilles tendinopathy is the highest-incidence running injury in the pooled data, at 10.3% of new injuries in the Kakouris review. Our full guide to Achilles tendinopathy in runners goes deeper on the rebuild. It is pain and stiffness in the cord at the back of the ankle, worst on the first steps in the morning and at the start of a run. It tends to arrive after a block of hill work, speed work, or a mileage jump, anything that suddenly asks more of the calf and tendon.

The instinct to rest it completely is the single most common mistake. A tendon is living, load-responsive tissue. Take all load away and it gets weaker and more pain-sensitive, not stronger. The fix that the evidence supports is the opposite: controlled, progressive loading of the tendon, classically through eccentric calf work and heavy-slow resistance, which remodels the tendon and increases its stiffness and capacity.

This is the clearest case in all of running injury where active beats passive. Loading protocols consistently outperform passive treatments like ultrasound for midportion Achilles tendinopathy, and high-load tendon work has been shown to increase tendon stiffness and cross-sectional area over a 12-week block. The general rule from Lauersen's strength-training meta-analysis applies with force here: the tissue gets robust by being loaded, intelligently. A working protocol looks like heavy, slow calf raises, both straight-leg and bent-knee to catch both calf muscles, three times a week, three to four sets taken close to fatigue, sustained for at least 12 weeks.

When we rebuild a runner's Achilles, the programme is built around progressive calf loading with enough volume and intent to actually drive adaptation, not the token three sets most people stop at. Our coaches use the Y-Balance Test result to check that the rebuilt side has genuinely caught up to the other before we clear a return to full running, rather than guessing from how it feels.

Respect the timeline. Tendons remodel over months, not weeks. A protocol that is going to work usually needs 12 weeks of consistent loading, which is exactly why a handful of clinic visits rarely finishes the job.

4. Plantar fasciitis

Plantar fasciitis is the one that announces itself with the first step out of bed: a sharp, stabbing pain under the heel that eases once you get moving, then returns after long standing or a run. Our full guide to plantar fasciitis in runners covers the loading that fixes it. It is among the most prevalent running injuries, and it is stubborn, often dragging on for months when it is managed with rest and stretching alone.

It is a load-capacity problem in the tissue under the arch, the plantar fascia, and in the calf complex above it. Tight, weak calves and a foot that has not been conditioned for the impact it is absorbing leave the fascia overloaded. As with the Achilles, the body part that hurts is downstream of a chain that is not strong enough.

The evidence has moved toward loading here too. High-load plantar and calf strengthening produces better outcomes than stretching alone, because it rebuilds the tissue's capacity rather than just calming the symptom for an afternoon. The standout exercise is a slow, heavy calf raise performed with a towel rolled under the toes to load the fascia directly, three sets every other day, held slow at the top. Stretching has a place for short-term relief, but on its own it is under-dosed for a problem that is fundamentally about strength and tolerance.

In the studio we treat the heel as the end of a chain. The calf, the foot, and single-leg control all get loaded, and the asymmetry screen tells us whether one side is doing markedly less work, which is common in long-standing plantar fasciitis. The fix is rarely the heel in isolation, which is also why a generic stretch sheet so often fails.

The practical tell that you are under-dosing recovery: if the first-step morning pain has not budged in six to eight weeks, the plan is too passive. That is the cue to load, not to rest harder.

5. IT band syndrome

Iliotibial band syndrome is sharp pain on the outside of the knee that switches on at a predictable point in a run and switches off when you stop. Our full guide to IT band syndrome in runners covers the real fix. It is one of the most common causes of lateral knee pain in runners, and it is one of the most misunderstood, because the popular fix is almost entirely wrong.

It is not the IT band being tight and needing to be crushed. The IT band is a thick, strong band of connective tissue you cannot meaningfully stretch or lengthen by rolling on it. The real driver is usually weak hip abductors and gluteus medius, which let the pelvis drop and the thigh rotate inward on each stride, compressing the tissue against the outside of the knee.

So the fix is hip strength, not foam-rolling the side of your leg into submission. We laid out what the actual evidence says about foam rolling in our piece on 12 years of peer-reviewed foam rolling research: it can buy short-term comfort, but it does nothing to fix the strength deficit that caused the problem, so the pain returns on the next long run.

When a runner presents with IT band pain, we test hip-abductor strength and single-leg control directly, then load them. The Y-Balance Test's posterolateral reach is particularly good at exposing the glute-medius weakness behind this injury, and it gives us a number to chase back to symmetry rather than a vague sense of weak hips. The loading itself is unglamorous and effective: side-lying and banded hip abduction progressed into loaded single-leg work and Copenhagen-style adductor work, built up over weeks.

Common mistake to avoid: more mileage to push through it. IT band syndrome responds badly to volume and well to load. Cut the running back temporarily, build the hips, and reintroduce distance once the strength is there.

6. Bone stress injuries and stress fractures

Bone stress injuries are the serious end of the spectrum, and the one item on this list you must not train through. They are tiny structural failures in the bone, most often in the tibia or the bones of the foot, from repetitive impact that outpaces the bone's ability to repair. The pain is sharp, localised to a specific point, and unlike the soft-tissue injuries above, it does not warm up and ease, it gets worse with continued loading.

They happen when impact load, often a fast mileage increase, outstrips bone repair, and they happen sooner when the underlying tissue is weak or under-fuelled. Low energy availability, where a runner is not eating enough to support their training, is a major and under-recognised driver, particularly relevant to lean, high-mileage runners chasing a race time.

Prevention is the same load-and-strength logic, applied to bone. Bone is living tissue that gets stronger when it is loaded progressively, including through resistance training, and weaker when it is not. Sensible mileage progression, adequate fuelling, and a base of strength work all raise the threshold at which bone fails. Once a stress fracture is suspected, though, the only correct first move is to stop and see a doctor for imaging.

We screen for the risk factors rather than the fracture itself. A runner whose assessment shows low strength, a large side-to-side asymmetry, and a history of fast mileage jumps is carrying elevated bone stress risk, and the programme is built to de-risk that before they load up for a race.

The non-negotiable rule: sharp, point-specific bone pain, especially pain at rest or at night, is a medical issue, not a coaching one. See a sports doctor first. Strength work resumes after a diagnosis, not instead of one.

7. Hamstring strains

Hamstring injuries are the posterior-chain problem of faster runners, the ones doing intervals, tempo work, and sprints. They range from a sudden grab mid-stride to a nagging high-hamstring ache near the sitting bone (proximal hamstring tendinopathy) that bites when you accelerate or sit for long periods.

They happen at the limit of the muscle's strength and length, usually during fast running where the hamstring has to decelerate the lower leg with a lot of force. A hamstring that is not strong enough through that lengthened range, or that is much weaker than its opposite side, is the one that tears.

Eccentric strength is the prevention with the best evidence behind it. Loading the hamstring as it lengthens, classically through Nordic hamstring curls, halves the rate of hamstring injuries across pooled trials of thousands of athletes. It is one of the cleanest examples of the strength-prevents-injury principle that the Lauersen meta-analysis quantified. A typical dose is two sessions a week of Nordic curls, building from a handful of reps to three sets, alongside hip-hinge strength like Romanian deadlifts to load the hamstring through its full range.

We program eccentric hamstring work as standard for anyone doing speed work, and we use the side-to-side asymmetry from the assessment to flag the runner whose left and right are dangerously mismatched. A large strength asymmetry is a tear waiting for the right interval session, and it is invisible until you measure it.

The mistake we see most: returning to sprinting the week the pain leaves. A hamstring feels fine long before it is strong again, and the strength deficit is exactly what causes the re-tear. Close the gap first.

How to prevent most of them (the strength and asymmetry method)

Seven injuries, and you cannot realistically run seven separate prevention programmes. You do not need to, because they share root causes. Almost every injury above traces back to two things: tissue that was not strong enough for the load it met, and a left-right asymmetry that concentrated that load onto one side. Fix those two and you have addressed the common driver behind nearly the whole list.

The strength half is the best-evidenced intervention in the field. Lauersen's meta-analysis found strength training reduced overuse sports injuries by roughly half, in a clear dose-response, which is why strength training for runners is not optional cross-training, it is the prevention. We make the full case in why runners in Singapore need strength training. The asymmetry half is what most runners never measure. On the Y-Balance Test, Plisky and colleagues found in 2006 that an anterior reach difference greater than 4cm between legs was associated with a 2.5 times higher lower-limb injury risk, and a composite reach score below 94% with a 6.5 times higher risk. That is a number you can know before you get hurt, and it is the Stability pillar of our 4-pillar method. Our full guide to the Y-Balance Test explains how we screen it.

This is also where conventional care often stops short. Physiotherapy in most settings is good at getting you out of pain, and you should see a physio or a GP for an acute injury or any red flag. But a typical course of treatment ends when the pain leaves, which is the exact moment the strength and asymmetry deficit that caused the injury is still wide open. That gap, between discharge and genuine load tolerance, is where re-injury lives, as our guide to returning to running after injury explains, and closing it is the entire point of our injury rehabilitation work and of rebuilding from injury properly. We walked through how to decide where to start in our note on NKT versus physiotherapy in Singapore.

Where to start is not all seven injuries at once. It is a baseline. The assessment measures your strength, your single-leg stability, and your side-to-side asymmetry, and the biggest gap it surfaces is the one to close first. For most runners that is hip and posterior-chain strength plus a measurable asymmetry, and addressing it does more for injury prevention than any amount of stretching, rolling, or shoe-shopping.

Frequently asked questions

Q. What is the most common running injury?

Patellofemoral pain syndrome, known as runner's knee, is the most prevalent running injury. In the 2021 Kakouris systematic review it accounted for 16.7% of running injuries by prevalence, ahead of shin splints, plantar fasciitis, IT band syndrome, and Achilles tendinopathy. It presents as an ache around or behind the kneecap that worsens on stairs and squats, and it is usually driven by weak hips and quads rather than a problem in the knee itself.

Q. Can strength training really prevent running injuries?

Yes, and it is the most effective prevention measure in the evidence. The 2018 Lauersen meta-analysis found that strength training reduced overuse sports injuries by roughly half, with a dose-response, meaning more strength work meant fewer injuries. It works by raising the load tolerance of tendons, muscle, and bone so the tissue can absorb the repetitive impact of running. Stretching and proprioception training did not come close to the same effect.

Q. How do I know if I have a left-right strength or movement asymmetry?

You measure it. The Y-Balance Test is a single-leg reach test that quantifies how far you can reach in three directions on each leg, and compares the two sides. An anterior reach difference greater than 4cm between legs has been linked to a 2.5 times higher lower-limb injury risk. Most runners have an asymmetry they are completely unaware of, because it is invisible until it is measured, which is why it is a standard part of every Catalyst assessment.

Q. Should I see a physiotherapist or a strength coach for a running injury?

For an acute injury, a sharp pain, swelling, locking, or any red flag, see a GP or sports doctor first, and a physiotherapist to get you out of pain. The gap is what comes after. Most courses of treatment end when the pain leaves, before the strength and asymmetry deficit that caused the injury is fixed, which is why so many runners re-injure. A strength coach closes that gap and rebuilds the load tolerance that keeps you running.

Q. How much should I increase my running mileage?

The long-standing guidance is to avoid increasing your weekly mileage by much more than around 10% at a time, because rapid mileage spikes are one of the most consistent predictors of running injury, especially shin splints and bone stress injuries. The principle matters more than the exact figure: progress load gradually, and build a base of strength alongside the mileage rather than letting running volume run ahead of the tissue's capacity.

Most running injuries are the same story told seven ways: load arrived faster than strength, and an unmeasured asymmetry decided which part of you paid for it. You prevent nearly the whole list by building strength progressively, managing how fast you add mileage, and knowing your left-right numbers before a race buildup exposes them. If you are choosing where to run while you build that base, our guide to the best times to run in Singapore is the companion piece.

The 4-Pillar Healthspan Assessment is the screen we use to find the strength gap and the asymmetry behind a runner's injury risk, before a race buildup finds them for you. Sixty minutes in studio. Four pillars measured, including the Y-Balance Test. A written report you take home. Book the assessment, or read more about personal training for runners in Singapore.

Citations