If a long-distance runner increases mileage too rapidly, which consequence is most likely in their tibia?

💡 Explanation

A stress fracture occurs because rapid increases in mileage overload the tibia, leading to microdamage exceeding the bone's repair capacity. Bone remodeling, coordinated by osteoblasts and osteoclasts, cannot keep pace; therefore, the imbalanced remodeling results in a stress fracture, rather than uniform density increase or immediate elevated calcium absorption.

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