The Science of Building Six-Pack Abs There’s a lot more to building six-pack abs than just doing crunches. The right training balance, nutrition and proper recovery all play a role in developing defined abs. While it’s not always easy, a six-pack is a great fitness goal for those who are dedicated to training and eating smart! Abdominal Muscles If you want to know how to build six-pack abs, you need to understand the anatomy of your abdominal muscles. There are a few different types of muscles in your core, each playing a unique role. The rectus abdominis is the main muscle that gives a person’s abs their coveted “six-pack” appearance. This is the largest and strongest of all your abdominal muscles. It flexes and tightens your spine, helping to support your body’s weight. It’s also used for other activities, such as breathing and biking. There are also other important muscles…