compared to other lifts, there are probably more calories burned doing 10x3 snatches or something of the like. But compared to cardio, I'm betting that it doesn't touch it. Thats my guess. With that said though, when I was playing football and o lifting heavy, I was at my leanest. I believe that this is due to the muscle mass that I was able to pack on because of the o lifts, which would be another story.