Hypergravitational aerobics

Hypergravitational aerobics was a type of exercise that was undetaken in the 23rd century.

In 2251, Cadet Karl-Willem Brandhorst accused his roommate, Gary Mitchell, of only using a computer workstation when he wanted to look up the schedule for the women's hypergravitational aerobics lessons at Starfleet Academy. (TOS novel: My Brother's Keeper: "Republic").