Muscles Worked During The Back Extension Exercise This exercise mainly works your lower back muscles, especially your erector spinae . You will find that with an engaged core, your abs will also be worked since they are used as a balancing aid, but also to promote better form.
Does the back extension machine work?
Muscles Worked During The Back Extension Exercise This exercise mainly works your lower back muscles, especially your erector spinae . You will find that with an engaged core, your abs will also be worked since they are used as a balancing aid, but also to promote better form.