Weightlifting was a sport which involved lifting weights.
Isaiah Farber had been a Starfleet weight-lifting champion at some point prior to 2265. (VAN novel: Harbinger)
In 2266, Montgomery Scott displayed his weightlifting skills when he lifted a zombie robot, spun it around over his head and tossed it at a group of other robots, disabling them and allowing the USS Enterprise landing party to escape from Saeena's tomb. (TOS comic: "The Haunted Asteroid")