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 ...

Hypertrophy is the increase in size and volume of muscle cells through a specific type of resistance training. Trainers ...

As I’m typing these words, I don’t think about the synchronized muscle contractions that allow my fingers to dance across the keyboard. Or the back muscles that unconsciously tighten to hold myself ...

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 ...

Here’s one of those weird-yet-fascinating, quirky-yet-perhaps-helpful research findings: People who clench their muscles—by, say, making a fist or tensing their biceps—show a brief spurt of improved ...