Running is accessible, good for cardiovascular fitness and mood, and worth doing for most people. It also carries a real injury rate. A large share of recreational runners lose training time to an injury in any given year.
Almost all of those injuries are load problems: a tissue was asked to do more than it was currently prepared for. That framing matters, because it points at what genuinely helps and away from advice that gets repeated but does not hold up.
Common running injuries
- Runner’s knee (patellofemoral pain) – Pain around or behind the kneecap, usually tied to a change in training load and to how well the hip, knee and calf tolerate it. Structural “misalignment” is often blamed but explains far less than it is given credit for.
- Shin splints (medial tibial stress syndrome) – Pain along the inner shin, most often after a jump in volume, intensity, or surface.
- Plantar heel pain (plantar fasciopathy) – Pain under the heel, worst on the first steps in the morning. Load-related.
- Achilles tendinopathy – Pain and thickening in the tendon. This is mostly an overload and tissue-quality problem rather than simple inflammation, which is why it responds to graded loading rather than rest alone.
- IT band syndrome – Pain on the outside of the knee. It used to be described as the band rubbing back and forth over bone. The better current explanation is compression of the sensitive tissue underneath the band.
- Bone stress injuries and stress fractures – Repetitive loading without enough recovery, and often without enough fuel.
What actually reduces injury risk
Gradual load progression
Sudden spikes in weekly volume, intensity, or hill and speed work are the most consistent thing that shows up before an overuse injury. Building gradually is well supported as a principle.
You have probably heard the 10% rule — never add more than 10% to weekly mileage. Treat it as a rough guardrail, not a validated threshold. When it has been tested directly it did not reduce injury rates on its own, and 10% of 60 km is a very different jump from 10% of 10 km. The defensible version is simpler: increase in small steps, change one variable at a time, and hold a new volume for a couple of weeks before adding again.
Strength training
This is the strongest item on the list. Strength training reduces overuse injury rates across sport, and it is one of the few prevention measures with good supporting evidence in runners specifically.
- Calf and Achilles – heel raises with the knee straight and bent, progressed to genuinely heavy.
- Hips and glutes – squats, split squats, hip bridges, step-downs.
- Trunk and single-leg control – loaded carries, planks, single-leg work.
Two short sessions a week is enough to matter. Load it progressively. A strength routine that never gets harder stops giving you anything.
Recovery and fuelling
Recovery is not the absence of training, it is part of it. Alternate hard and easy days, keep easy days genuinely easy, and protect sleep.
Under-fuelling is a real risk factor for bone stress injuries. Runners who chronically eat less than their training demands — low energy availability — have higher rates of stress fractures along with hormonal and menstrual disruption. Eat enough carbohydrate and protein to cover the work you are doing, and get adequate calcium and vitamin D for bone health.
Drink to thirst and replace fluid after long or hot runs. Hydration affects how you feel and perform; it is not an injury-prevention lever on its own.
Cross-training
Swimming, cycling and rowing let you keep cardiovascular fitness while giving the impact-loaded tissues a break. Useful when you are building back up or working around a niggle.
What is oversold
Warm-ups
An easy build-in — a few minutes of walking or slow jogging, leg swings, then into pace — makes the first kilometres feel better and prepares you to run well. Warming up on its own as an injury-prevention measure is not established. Structured programs delivered as warm-ups do reduce injuries, but their content is mostly strength and neuromuscular control work. The benefit appears to come from that, not from being warm.
Stretching
Static stretching increases range of motion. It does not prevent running injuries and does not prevent next-day muscle soreness. Both have been tested repeatedly with consistent results. Stretch if you enjoy it or you need the range for something specific. Do not count on it as protection.
Foam rolling
Foam rolling can reduce how sore you feel for a short window. It does not release knots, break up adhesions, or flush anything out of a muscle. Harmless, mildly useful, heavily oversold.
Shoes
No shoe type has been shown to prevent running injuries. Prescribing shoes by arch height or pronation has been tested in large trials and did not lower injury rates. Comfort is the best available guide: choose the shoe that feels good at your normal pace, and change one thing at a time if you switch.
The 300–500 mile replacement figure is a manufacturer rule of thumb, not a validated threshold. Replace shoes when the midsole feels flat and dead or your usual mileage starts to ache more than it used to.
Running form
Evidence here is mixed. Raising cadence slightly and avoiding a long reaching stride does reduce measured load at the knee and hip, and can help someone who already has knee pain. Whether form retraining prevents injury in runners without symptoms is not established. Do not rebuild your gait for its own sake.
Early warning signs
Most running injuries announce themselves before they stop you.
- Pain that builds through a run instead of easing off as you warm up.
- Pain that is worse the morning after.
- Swelling or focal tenderness in one specific spot.
- A pinpoint sore spot on bone, especially one that hurts when you hop on that leg. That one warrants prompt assessment rather than a wait-and-see week.
- Changing how you run to avoid a symptom.
Backing off early usually costs you a week. Ignoring it can cost a season.
None of this makes anyone injury-proof. Running has an irreducible injury rate, and the honest goal is to lower your risk and catch problems early, not to eliminate them. Everything above is general guidance — a problem that has your name on it needs an actual assessment: history, examination, and a look at what your training has been doing.
If something has been bothering you for more than a couple of weeks, or it is changing how you run, our physiotherapy team in South Keys can take a look and build the loading plan around it.
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