Wondering “how often should I change my running shoes?”
We chatted with a podiatrist to find out everything you oughta know.
Is the 300 to 500 mile rule founded on research?

Do you really need to replace your shoes that often?
Yes, says podiatristBruce Pinker, DPM, who works with walkers and runners atProgressive Foot Carein New York.
However, the rebound effectiveness decreases over time.

board-certified podiatrist atProgressive Foot Care
Running or walking without this shock-absorbing material fully intact could possibly lead to injuries, cautions Dr. Pinker.
That could mean stress fractures, shin splints, plantar fasciitis, or runners knee.
How can you tell its time to replace your shoes?

However, he cautions against using this as theonlysignorfirstsignthat your shoes are on their way out.
Thats why its best to replace shoes based on your mileage, he says.
Another thing to remember is that its not just about mileage when classifying a running shoe as old.

The actual age of the shoe, in terms of time, also matters.
Construction materials, particularly the EVA foam cushioning and certain gels, break down over time.
Stay with well-known brands.

board-certified podiatrist atProgressive Foot Care
Can you make your shoes last longer?
Br J Sports Med.
2009 Oct;43(10):745-9. doi: 10.1136/bjsm.2008.047761.

Epub 2008 Sep 18.
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