Gymnastics
From Memory Alpha, the free Star Trek reference.
Gymnastics is a diverse sport involving the performance of complex and physically challenging movements. On Earth, it was one of the sports in the Olympics. (DS9: "Take Me Out to the Holosuite")
Emony Dax was a competitive gymnast. In 2245, she visited Earth to judge a gymnastics competition held at the University of Mississippi. (DS9: "Trials and Tribble-ations")
The USS Enterprise-D contained a gymnasium, where numerous crewmembers practiced gymnastics, including Deanna Troi and Beverly Crusher. (TNG: "The Price")
