It s the perfect complement to crunches to develop a strong balanced midsection.
Back extensions with twist on the floor or mashine.
A back extension bench often called a back extension machine uses gravity as resistance.
The erector spinae group runs along your spine and is responsible for extending your spine.
Lock your heels under the pads so that you re secure and then lower the top half of your body toward the floor until your waist is fully bent.
Whether back extension reps or holds are better depends on your training goals.
You hang off the apparatus from the waist up.
The back extension exercise both stretches and strengthens your lower back.
It requires you to face the floor with your thighs on the pad letting your spine extend upward.
The most common back extension machine is the hyperextension apparatus which places your thighs in an inclined or even completely horizontal position.
Back extensions whether done dynamically for reps or isometrically for time are effective for developing strength and endurance in your erector spinae muscles.