The Core Mechanism
Overload of the plantar fascia from mileage spikes, weak feet, or worn shoes.
The Real-World Triggers
Plantar Fascia rarely has a single cause. In runners, these are the consistent contributors:
- Mileage spike
- Switch to barefoot, minimal, or zero-drop shoes
- Weak foot intrinsic muscles
- Tight calves loading the fascia at push-off
- Walking long distances on hard floors barefoot
Why Runners in Particular
Running concentrates repeated impact and load through the same tissues thousands of times per session. Plantar Fascia develops when that load exceeds the tissue's adaptation rate — usually because training spiked, recovery dropped, or strength didn't keep up.
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