How to Avoid Running Injuries — The 10 Most Common Mistakes
Most running injuries are not accidents — they are the predictable result of ten common mistakes, repeated week after week until something breaks down. The good news is that the mistakes are known, the fixes are simple, and the runners who avoid them are not luckier than the rest; they are simply more patient.
This guide lists the ten most common mistakes that cause running injuries, in the order you should fix them: training load first, then shoes and surfaces, then strength and form, then recovery. Work through them before you are injured, not after — because the best treatment for a running injury is the one you never need.
Use the calculator
Start with your own numbers: try our pace calculator, heart rate zone calculator to work out your figures before applying anything on this page. The worked examples below use round numbers so you can follow the maths; the calculators use your real weight, height, age and goal.
Related reading: Running Form Guide — Cadence, Posture and Footstrike, Overtraining Signs — 10 Warning Signals to Watch For, Running Shoes Guide — How to Choose the Right Pair. You can also browse the full guides section for the rest of the series.
The key points
1. Too much, too soon. The single biggest cause of running injury is increasing mileage or intensity faster than the body can adapt — tendons and bones adapt more slowly than muscles and lungs. The fix is the 10% guideline: total weekly running time should rise by no more than about 10% a week, and never add volume and intensity in the same week. A plan that grows slowly is a plan that lasts.
2. Running every run at the same moderate pace. The "grey zone" — too fast to recover, too slow to build speed — is where most recreational runners live, and it is where overuse injuries breed. The fix is polarisation: about 80% of running easy and conversational, 20% genuinely hard, and almost nothing in between. Easy days must be truly easy, or they are not recovery.
3. Worn-out shoes. Running shoes lose their cushioning long before they look worn — typically after 500–800 km — and the loss of shock absorption loads the knees, shins and Achilles. The fix is to track mileage and replace shoes on schedule, and to rotate two pairs if you run often, which also lets the foam recover between runs. Running in old trainers with dead soles is a false economy.
4. Weak hips and glutes. The hip stabilisers control the knee's position with every step, and when they are weak the knee collapses inward — the mechanism behind runner's knee, IT band pain and shin splints. The fix is two short strength sessions a week: squats, lunges, single-leg deadlifts, side-lying leg raises and clamshells. Strong hips are the cheapest injury insurance in running.
5. Skipping the warm-up. Cold muscles, tendons and joints are stiffer and more injury-prone, and the first kilometre is when strains happen. The fix is 5–10 minutes of easy jogging plus dynamic movements (leg swings, walking lunges) before any hard session — never static stretching on cold muscles, which does not prevent injury and can reduce performance.
6. Ignoring pain that changes your gait. Soreness that fades is normal; pain that makes you limp, alters your stride, or worsens during a run is not. The fix is the 48-hour rule: if pain changes how you run, stop and rest for 48 hours; if it is still there, get it assessed. Running through gait-changing pain is how a two-week niggle becomes a three-month injury.
At a glance
| Mistake | Injury it causes | The fix |
|---|---|---|
| Too much, too soon | Shin splints, stress fractures | 10% rule; never add volume + intensity together |
| Grey-zone running | Overuse injuries, burnout | 80% easy, 20% hard |
| Worn-out shoes | Knee pain, Achilles pain | Replace every 500–800 km |
| Weak hips/glutes | Runner's knee, IT band pain | Strength 2× a week |
| No warm-up | Muscle strains | 5–10 min easy jog + dynamic moves |
| Ignoring gait-changing pain | Stress fractures, tendinopathy | Stop; 48-hour rule; get assessed |
| Sudden surface change | Achilles, calf strains | Change surfaces gradually |
| Poor sleep/recovery | All overuse injuries | 7–9 hours; rest days respected |
Mistakes 7–10 — surface changes, sleep, downhill running and racing too often — are covered in the key points and the plan below.
The formula behind it
The load maths is the 10% guideline: weekly running time should rise by no more than about 10% a week. From 3 hours a week, the next week is 3 hours 18 minutes — not 4 hours. The acute-to-chronic workload ratio, used in sports science, formalises the same idea: the current week's load divided by the average of the previous four weeks should stay between 0.8 and 1.3. A week of 6 hours after four weeks averaging 3 hours is a ratio of 2.0 — well into the injury-risk zone — while a week of 3.5 hours after the same base is a ratio of 1.17, inside the safe range.
The impact maths explains why the load matters: each running step loads the body with 2–3 times body weight, and a 60-minute run at 170 steps a minute is about 10,200 impacts. At 75 kg, that is roughly 10,000 impacts of 150–225 kg each — which is why the cumulative load, not any single run, is what injures runners. The calorie maths is the Compendium (Ainsworth et al., 2011): running at 6 mph (9.8 MET) burns 9.8 × weight (kg) per hour, so an hour at 75 kg burns about 735 kcal — but the injury question is about load, not calories, and the numbers that matter are the mileage, the progression and the recovery.
Your plan, step by step
- Apply the 10% rule to weekly running time, and never add volume and intensity in the same week.
- Run 80% of your time easy and conversational; keep hard sessions to one tempo and one interval session a week.
- Replace shoes every 500–800 km and rotate two pairs if you run four or more days a week.
- Lift weights twice a week, with hip and glute work (squats, lunges, single-leg deadlifts) in every session.
- Warm up for 5–10 minutes before hard sessions, and respect the 48-hour rule for any pain that changes your gait.
- Sleep 7–9 hours, take a cutback week every third or fourth week, and change surfaces gradually.
How to use this guide
Use this guide as a pre-season checklist, not a post-injury manual. Go through the ten mistakes honestly and fix the ones that match — most injured runners can name two or three of them immediately, and most uninjured runners can name one they are currently making. The fixes are boring: slower progression, easier easy days, newer shoes, stronger hips, better sleep. Boring is the point — injuries are exciting in the worst way, and the prevention is deliberately dull.
Keep a simple training log: weekly time, how the body felt, any pain and where. The log is the early-warning system — a niggle that appears in the log three weeks running is a pattern, and patterns are fixable before they become injuries. Runners who log their training get injured less often, not because the log is magic but because it makes the load visible.
What this guide does NOT tell you
This guide covers the common, preventable causes of running injury; it cannot diagnose an injury or judge whether your pain is safe to run through. Sharp joint pain, pain that worsens during a run, pain that changes your gait, swelling, numbness, or pain that persists beyond a few days of rest all need assessment by a clinician or physiotherapist — not a training adjustment. Stress fractures, in particular, are easy to miss and dangerous to run on.
The 10% rule and the workload ratios are guidelines from sports science, not guarantees: individual injury risk varies with age, biomechanics, training history and surfaces, and some runners are injured at low loads while others tolerate high ones. This guide is general information, not medical advice, and it does not replace professional assessment for any pain or injury.
Frequently asked questions
What is the most common running injury?
Runner's knee (patellofemoral pain) and shin splints (medial tibial stress syndrome) are among the most common, followed by Achilles tendinopathy, IT band syndrome and plantar fasciitis. Most share the same root cause: training load rising faster than the tissues can adapt, often combined with weak hips and worn shoes. The prevention is the same for all of them — gradual progression, easy easy-days, strength work and good shoes.
How do I know if running pain is serious?
Use the gait test: if the pain changes how you run — you limp, shorten your stride, or favour one leg — it is serious enough to stop. Other warning signs are pain that worsens during a run, pain in a joint rather than a muscle, swelling, numbness, or pain that is still there after 48 hours of rest. Soreness that fades within a day or two and does not change your stride is usually normal training soreness.
Do running shoes really prevent injuries?
Good shoes help, but they do not prevent injuries on their own: the evidence that a particular shoe type prevents injury is weak, and training load matters far more. What shoes do is provide cushioning and support that degrades over 500–800 km — and running in dead shoes does raise injury risk. The practical advice is simple: wear comfortable running shoes that fit, replace them on schedule, and do not expect any shoe to compensate for too much training.
Should I stretch to prevent running injuries?
Static stretching before running does not prevent injury and can slightly reduce performance; dynamic warm-ups (easy jogging, leg swings, walking lunges) do help prepare the body. Stretching after running is fine for flexibility and comfort, but it is not an injury-prevention strategy. The interventions with real evidence are gradual progression, strength training (especially hips and glutes), and adequate sleep and recovery.
Can I run through shin splints?
No — shin splints are a warning that the load is too high for the tibia, and running through them risks a stress fracture, which is a months-long injury. The correct response is to cut running volume by half or stop entirely for 1–2 weeks, switch to low-impact activity (cycling, swimming), strengthen the calves and hips, and return gradually. If the pain is localised to one spot on the bone, or it hurts when walking, get it assessed promptly — that pattern suggests a stress fracture, not shin splints.
Estimates only, not medical advice. Minimum safe intakes: 1,200 kcal/day women, 1,500 kcal/day men — consult a healthcare professional before a very-low-calorie diet.