Anatomy Of The Upper Abs Rectus Abdominis. ... These muscles wrap around the waist like a corset to support and protect the spine. Best Upper Abs Workout. Time: 20–25 minutes ...

Rectus abdominis. The rectus abdominus muscle is the muscle people are usually referring to when they mention “ abs .” This is the muscle that forms a “six-pack” at the front of your core.

All that hammering for the washboard core is hurled against the rectus abdominis, a muscle that runs from the ribcage to the pelvis. Physical fitness is the ability to perform tasks with ease, ...