A fitness session turned unexpectedly comedic when a man attempting an explosive box jump crashed straight through the training box after it gave way beneath him. The video, posted on Instagram by ...

The three-time medalist is behind the design of his prosthetic—and he uses it to train hard off-board, too.

I recently wrote about how running with a can of Pringles helped me improve my form—an ingenious trick from my high school coach that taught me to keep my hands relaxed. The story got me thinking: ...