Switching from shoes with 2-3 inches of heel elevation to zero elevation while running applies a significant stretch to the Achilles tendon, which can be destructive. — Whalespan
Switching from shoes with 2-3 inches of heel elevation to zero elevation while running applies a significant stretch to the Achilles tendon, which can be destructive.
⚠ High risk
The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
◐PARTIALLYSUPPORTED
⚠
High-risk intervention — consult a physician before acting.Drug-drug interactions, dose-dependence, and screening contraindications apply.
“if you're used to walking around with two to three inches of heel elevation and then you start running with something that has no elevation you've got a double whammy which is one you're applying a huge stretch to something that hasn't been stretched”
“these shoes were flat to begin with and the achilles it doesn't take much if you take out a lift you know if you just go down and walk in a flat shoe for a period of time you can develop an achilles tendon nice if you don't do it slowly”