How to Start Running Without Getting Injured

Start with the truth about running injuries

Running is one of the best things you can do for your health, and the human body is built to do it. Yet a large share of new — and returning — runners pick up an injury within their first few months, and it is worth being honest about why. It is almost never because running is inherently damaging, and rarely because of one flaw in your form. The overwhelming cause is a load error: asking the body to do more than it has adapted to, too quickly.

That is genuinely good news, because load is the one thing entirely within your control. Get the build-up right and you tilt the odds firmly in your favour. This guide walks through the principles that matter most, from someone who spends their days helping runners stay on the road.

Build your mileage gradually

The single biggest injury driver is a sudden spike in training. When weekly mileage, pace or hill work climbs faster than your tendons, bones and muscles can adapt, the tissue that absorbs each footstrike gets overloaded — and shin pain, runner’s knee or Achilles trouble follow.

The fix is unglamorous: build up slowly and steadily. A widely used rule of thumb is to increase your weekly running by no more than around ten per cent, though the right rate is individual and depends on your history, your recovery and how you feel. More useful than any exact percentage is the principle behind it — progress in small, consistent steps, and schedule easier weeks so your body can consolidate the gains. If you are completely new, alternating walking and running is a proven, low-risk way in. Consistency you can sustain always beats heroic weeks that end on the physio couch.

Strength is your injury insurance

If mileage progression is the accelerator, strength training is the seatbelt. Building strength in the hips, glutes, thighs, calves and feet increases the load your body can absorb before something complains — and it is one of the best-evidenced ways to reduce overuse running injuries. It also quietly improves your running mechanics, because form is driven by what the body is capable of, not by willpower alone.

You do not need a complicated programme. Two short sessions a week, built around a handful of key movements — think squats, calf raises, single-leg work and hip strengthening — is a sensible starting point for most people. If you are unsure where to begin or you have a history of niggles, a physiotherapist can screen your strength and mobility and hand you a focused plan rather than a generic checklist.

Cadence and technique — what actually matters

Runners often worry most about the thing that matters least: whether their form looks “correct”. The reality is there is no single perfect running style, and forcing wholesale technique changes can create as many problems as it solves. Foot strike, in particular, gets far more attention than the evidence supports.

Where technique does help, it is usually small and specific. A modest increase in cadence — taking slightly more, slightly shorter steps — can reduce the load on the knee for some runners. But these tweaks are best made in response to your symptoms and your assessment, not copied wholesale from a video. If you want to know whether a change would genuinely help you, that is exactly what a slow-motion gait assessment is designed to answer — linking what we see on camera to the symptoms you actually feel.

Know the common running injuries

A few overuse injuries account for most of what we see in runners, and recognising them early helps. Shin pain, often felt along the inner shin, is a classic sign of load climbing faster than the tissue can cope. Runner’s knee — pain around or behind the kneecap — is usually load-related and typically responds to progressive hip and thigh strengthening rather than rest alone. Achilles tendinopathy, felt in the tendon at the back of the ankle, is another overload injury; like most tendon problems, it improves with carefully progressed loading, not with complete rest.

The common thread is that these respond far better to smart management — adjusting load, then rebuilding capacity — than to either pushing through or stopping entirely. Understanding this stops a two-week niggle becoming a two-month layoff.

When a niggle becomes an injury

Some soreness while building fitness is normal, and it is not a reason to panic. The skill is telling ordinary training discomfort apart from a signal worth acting on. Book an assessment with a physiotherapist if pain persists beyond a few days, gets worse during or after your runs, makes you change how you walk, or keeps returning every time your mileage creeps up.

A few symptoms deserve prompt attention rather than a wait: sharp, localised pain in a specific spot of bone, marked swelling, or an inability to bear weight can point to a bone stress injury and need assessing before you run again. Getting advice early almost always means a shorter, simpler fix — and a plan to build your load back safely rather than guessing.

If you are starting out, coming back after time away, or chasing a personal best without the injuries that keep interrupting it, an assessment is a strong first step. We help complete beginners and club runners alike across our Soho, Liverpool Street and Marylebone clinics — building durable, comfortable running, not a quick fix that unravels the moment training ramps up.