What is actually known about Roman gladiators?... written by u/ImBeingMadeToJoin and u/Seah0rseParty69 (their answer might be of particular interest) and u/XenophonTheAthenian (note their answer is not a top level comment).

How were gladiators is the past so "buff", what kind of workout equipment did they have? written by u/Bacarruda (be sure to read both their top level comment and their reply to the follow up by a now deleted user).