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In the context of lower extremity overuse injuries in runners, hydration plays a critical role, particularly in maintaining overall performance and preventing issues such as cramps or fatigue. However, while dehydration can impact a runner's ability to perform optimally, it is less directly linked to mechanical stresses or overuse injuries in the same way as factors like footwear, posture, and changes in running surfaces.

Poor footwear can lead to insufficient shock absorption and support, increasing the likelihood of impact-related injuries. Similarly, poor posture can compromise running mechanics and place additional stress on the lower limbs, contributing to overuse injuries. Changes in the running surface can alter the forces acting on the body, leading to adaptations and potential overuse injuries as the body adjusts to new conditions.

In contrast, while inadequate hydration is important for overall health and performance, it does not primarily influence mechanical aspects associated with overuse injuries. Thus, it is less recognized as a common factor for lower extremity overuse specifically among runners.