i want to start doing conditioning work for rugby 5 days a week, instead of just 3 like i am now. i'm just a little wary of going so hard on my legs 5 days a week. so i'm wondering, do pro rugby and (american) football players do conditioning work like plyometrics or sprints on consecutive days? i'd imagine that they do, or else they wouldn't be in such good shape, but idk if they don't so they can let them recover. thoughts? please don't just guess & use knowledge about bodybuilding b/c most bodybuilders wouldn't do consecutive days of HIIT but bodybuilders and pro football/rugby players don't have the same goals. sorry if this sounds like a rant or that i answered my own question cuz i didn't. thanks guys!