North Star Academy senior Amahri Boyce had just run the 55-meter sprint in 7.26 seconds at the Molloy Stanner Games in the New York Armory in January when she lost her footing on a mat at the end of the track.

Instead of celebrating her personal best, Boyce was nursing a pain in her foot. She iced it and thought everything would be fine. It wasn’t until she got to the doctor later that ...