The Core Mechanism
Overload from sprinting, hurdling, or sudden high-volume work on tight, weak hip flexors.
The Real-World Triggers
Hip Flexor rarely has a single cause. In runners, these are the consistent contributors:
- Sudden sprint or hurdle workouts
- Tight, under-strengthened hip flexors from chronic sitting
- Weak glutes — hip flexors compensate
- High mileage without strength training
- Overstriding
Why Runners in Particular
Running concentrates repeated impact and load through the same tissues thousands of times per session. Hip Flexor 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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