Check out this video of blood flow to the quadriceps during exercise. This video was created from functional MRI blood oxygen level dependent images.
The first 30 sec or so is at rest, then you can see the blood flow changes during muscle contraction. To compare the blood delivery to the quads before and after exercise - just click to the beginning and end of the movie.
Loading more stuff…
Hmm…it looks like things are taking a while to load. Try again?