There's a lot of information online about how the Spartans would have trained but mostly it doesn't have any sources or reliable information. Does anything exist on how the Spartans would have trained in the Agoge or Syssitia Barracks?
Information I found in other threads, general information about Ancient Greece exercises (all by /u/Iphikrates/ :
https://www.reddit.com/r/AskHistorians/comments/5dmmbj/how_did_the_greek_hoplites_workout/
and about the Spartan Legend