The erector spinae group runs along your spine and is responsible for extending your spine.
Back extensions with twist on the floor or mashine.
Whether back extension reps or holds are better depends on your training goals.
The back extension exercise both stretches and strengthens your lower back.
Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube.
You hang off the apparatus from the waist up.
Back extensions whether done dynamically for reps or isometrically for time are effective for developing strength and endurance in your erector spinae muscles.
The most common back extension machine is the hyperextension apparatus which places your thighs in an inclined or even completely horizontal position.
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.
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.