Research shows that strong legs and glutes don’t just help you move better—they can protect your spine, balance, and even hormone health as you age.

Skattebo sustained the injury after a second-quarter pass from quarterback Jaxson Dart. His right leg got pinned underneath him and twisted on the ensuing hit. His lower leg was awkwardly bent in the immediate aftermath of the play.

Mr. A, age 22 years, came to the campus health services with a chief complaint of bilateral lower-extremity weakness that began several days earlier. He explained that he had an upper respiratory infection two weeks prior to the visit. Symptoms included ...