Resources online primarily focus on cardio being the best way to improve blood flow. However, some resources also mention strength and conditioning for improved blood flow. I have noticed that pushups and similar exercises do get my heart pumping.
How good are strength and conditioning training compared to cardio to improve blood flow while I am not training? Is there any research on how much impact intensity of workout has on a persons blood circulation?
That is, how much better is one hour of brisk walking compared to twelve minutes of guerilla cardio training if my goal is to improve my overall blood circulation?