A runner who has increased her training regimen dramatically in preparation for a marathon has begun to experience tingling and numbness down the rear of her right leg and into her right foot. What is the cause of these problems?

What will be an ideal response?


The condition the runner is experiencing is sciatica, or irritation of the sciatic nerve, which may be caused by tightening of the hamstring group of muscles that surround the nerve. Additional stretching may alleviate some of the muscle tightness, but typically the runner would need to reduce her exercise for a period of time to let the nerve recover.

Anatomy & Physiology

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