Machine back extension

. Bank is a new extension that’s reserved for certain banking members . Because it’s an exclusive extension, it provides more security than other standard extensions.

. Bank is a new extension that’s reserved for certain banking members . Because it’s an exclusive extension, it provides more security than other standard extensions.

The back extension machine targets the erector spinae, which are three muscles: illiocostalis lumborum, longissimus thoracis, and the spinalis . This bundle of muscles lies in a groove along the vertebral column. These muscles extend your lumbar spine.

The back extension machine targets the erector spinae, which are three muscles: illiocostalis lumborum, longissimus thoracis, and the spinalis . This bundle of muscles lies in a groove along the vertebral column. These muscles extend your lumbar spine.

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.

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.

Back extensions cause us to bend forward and push back creating up to 6,000 newtons of compression around the spine, at best putting unwanted pressure on the lumbar spine and at worst causing disc herniation.