Yes but not the same as Jack3d. It's more of a "focused " thing for me. What I like about it is that with the pump, I can get more focused on the muscles that I am working with. Kinda like doctors using those glasses with little magnifying lens on them, I can zero in on just were I really want to hit. If that makes sense. Lol! Its not a throwing way more weight around energy but a faster recovery and less fatigue (ie more reps) kind of thing for me.