Short answer: almost certainly not — and the £180 you were about to spend would be better kept in your pocket.
It is the first thing nearly every injured runner says to me. The knee started hurting about a month ago, and it must be the shoes, because I changed them in the spring. Or I didn’t change them, and they must be worn out.
I understand the appeal. Shoes are the one part of the problem you can fix in an afternoon with a credit card. Training load takes a conversation, and sometimes an uncomfortable one about what you have been doing for the last month.
What the evidence actually shows
There is very little scientific evidence that running shoes cause running injuries. That has been the picture for a long time now, and more recent reviews have not moved it much.
The most interesting part is what happened to shoe prescription. For years, runners were sorted by foot type — flat feet into motion control, high arches into cushioning — and matched to a shoe designed to correct them. It was a tidy theory. When it was actually tested in large trials, matching shoes to foot type did not produce fewer injured runners.
What has held up better is far less exciting: comfort. Runners who choose a shoe that feels comfortable tend to do better than runners fitted by a rule. That is roughly as far as the evidence takes us, and I would rather tell you that than dress it up.
So what is actually going on?
Usually it is load. Too much, too soon, without enough recovery in between.
Knees, then ankles, then hips are the areas runners injure most, and for most people that comes down to overdoing things a little and not allowing adequate rest. It is rarely dramatic. It is a fortnight where the weekly mileage crept up, a long run that got longer, a rest day that got quietly absorbed because the weather was good.
The four-week look-back
Before you go shoe shopping, open your training log and look at the last four weeks. Three questions:
- Did your weekly mileage step up? A jump of more than about a tenth from one week to the next is worth noticing.
- Did the long run get noticeably longer? Distance and intensity both count, and they add together.
- Did a rest day go missing? Including the load from work, life and anything else physical you do.
One of those three is sitting underneath most new niggles. It takes two minutes and it is right far more often than the shoe rack.
Does that mean shoes do not matter at all?
Not quite. A shoe that genuinely does not fit — too short, rubbing, sliding around — will cause you problems, but those are blisters and black toenails rather than knee pain. And if you switch to something dramatically different overnight, a big drop in heel height for instance, that is a change in load and your calves and Achilles will notice.
Beyond that, for the vast majority of runners a simple basic pair that fits your feet and feels comfortable will be just fine. Buy the ones that feel good when you run in them. Change them when they feel flat rather than at a number on a spreadsheet. That is the whole of it.
When to get someone to look at it
Take 24 to 48 hours off, rest it, and see how it settles. Most things do. If the pain has not started to settle after that, or it keeps returning to the same spot every time you build your mileage back up, that is the point to get it assessed properly rather than guessing at it.
And if it helps: pain is very rarely a measure of damage. It usually means an area has become sensitive, not that you have done something lasting to yourself.
Not sure what you’re dealing with? I run online injury assessments for runners — no travel, no waiting list, and you’ll come away with a plan built around your actual training week.
Run happy and injury free.
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