The Complete Idiot's Guide to Quick Total Body Workouts by Tom Seabourne

Author:Tom Seabourne [Seabourne, Tom]
Language: eng
Format: epub, mobi
Publisher: DK Publishing
Published: 2013-06-12T16:00:00+00:00

Your Six-Pack

Your rectus abdominis is a wide, flat sheath of muscle, commonly referred to as your six-pack. It stretches from the bottom of the ribs down to just below the navel (belly button). The six-pack is not six muscles. It is visible sections of a single muscle. It is similar to your thigh muscle, but with partitions. The partitions are fibrous bands called tendinous inscriptions.

When you flex your rectus abdominis muscle to lean forward, your lower back bends about 30 degrees. The rectus abdominis is responsible for bending forward at the waist and drawing your pelvis upward.

These front stomach muscles pull your chest toward your hips. In essence, the main thing your front stomach muscles do is decrease the distance between your chest and hips.

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