What causes lower-leg tightness during running that improves after stopping?

Doctor’s answer

Pain and tightness that repeatedly begin at a similar running distance or time and gradually ease after stopping may indicate chronic exertional compartment syndrome. Numbness or weakness can also occur. Assessment should exclude a stress fracture, vascular disorder, and nerve entrapment.

This content is for education. Diagnosis, treatment, and rehabilitation require an individual assessment by a sports medicine specialist.