text: what is a core circuit #1? i have aexercise on my football weight lifting sheet that says core circuit #1 what is it? this may just be referring to doing a specific routine of core lifts. your core lifts are bench press, squat, and power clean. there are many variations that you can do with each lift, so that could be what it is referring to. between stations it is common to run in a circuit around the gym; so, for example, there might be two minutes spent between each station. hope that helps.