It requires you to face the floor with your thighs on the pad letting your spine extend upward.
Back extensions with twist on the floor or mashine.
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.
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A back extension bench often called a back extension machine uses gravity as resistance.
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.
Use caution if you have a lower back problem or experience lower back pain while performing this exercise.
If you do feel pain try lifting only your legs and leaving your arms flat on.
The erector spinae group runs along your spine and is responsible for extending your spine.
The back extension exercise both stretches and strengthens your lower back.