>>76339822 (OP)>bag work>hill sprints>high bpm liss>heavy legs and low rest upper bodyHigh bpm liss you can just run for a few weeks and be at a high baseline and not have to do much at all like 1x/wi to get better even. 1x/wk hard cardio is more a thing to somehow add to lifting to be able to drink and eat 3000 calories in an hour and power through the lifting.