Personal trainers and exercise class instructors seem to have an acronym for everything, and it can be hard to keep up. Between gym slang like PR (personal record), HIIT (high intensity interval ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Between AMRAPs, EMOMs, WODs, PRs, and more, have you ever found yourself scrolling through FitTok asking: ...