Historical clue formulations

• Fitness fanatic, in slang — 2024-08-22
• Fitness enthusiast, slangily — 2023-08-07
• One who's probably going to work out — 2022-09-02
• Regular at a fitness center — 2019-12-06
• One doing heavy lifting, informally? — 2019-05-21
• Person with pressing things to do? — 2016-04-23