Need some advise on legs

[viav2000]

I have always been lucky enough to have legs that are a little too big for the rest of me - does anyone else find that when working legs with heavy weight it seems to get your heart pumping much more than other areas of the body? When I do squats and leg presses my heart rate gets up to almost the same as when I do cardio. Because of that I have never done cardio on the same days as legs.

[prolangtum]

Heart pumps more because legs make up more muscle mass than your upper body, therefore when working them, they need more blood flow.