Whether you’re a beginner or a seasoned bodybuilder, there’s a good chance you’ve heard about ‘mind-muscle connection.’ After all, even four-time Mr. Olympia Jay Cutler said, “Work the muscles, not ...

If your fitness goal is to up the ante on endurance, pack more power into your sprint, or supercharge your strength gains in the gym, it’s worth exploring – what are the different muscle fiber types?