Have you ever worked out and watched your muscles grow before your very eyes? You probably have, and while this is a fun, satisfying sight, it doesn't last. What you experienced is known as a muscle ...

It is what the fitness enthusiasts call a muscle pump. This temporary swelling happens when blood rushes into the working ...

The sensation of a "pump" or muscle congestion during workouts is a phenomenon that many fitness enthusiasts chase with zeal. That temporary swelling, that feeling of full and defined muscles, is not ...

The significance of muscle pumps in the fitness realm is evident. Muscle pumps, which are marked by a brief enhancement in muscle size and definition observed during and after an exercise routine, are ...

Get ready for the ultimate pump.

Add Yahoo as a preferred source to see more of our stories on Google. Luis Alvarez/Getty Images Have you ever worked out and watched your muscles grow before your very eyes? You probably have, and ...