I know the key to great abs, is an extremely low amount of body fat. But how can i improve this section above, I already have a low amount of body fat.I think this really shows the difference between great abs , and the rest.
your obliques, intercostals and serratus anterior.
Pullovers, cable crunches, diagonal crunches, Broomhandle twists, woodchops (DB or Cable), cable torso twists, MB russian twist, Fitball russian twists…
If you’re referring to the serratus anterior.