1
Sit on a weight bench with feet extended on a leg extension pad or supported platform. Position torso upright with spine in neutral alignment. Secure feet under the leg extension attachment or have them supported.
2
Place hands behind head with fingers laced or crossed, or fold arms across chest. Engage core to maintain spinal stability. Establish a stable seated position with hips firmly on the bench.
3
Slowly lower the torso backward by extending the spine and leaning back in a controlled manner. Allow the back to arch gradually while maintaining hip contact with the bench. Lower until you feel a mild stretch in the abdominals and hip flexors, approximately 45-60 degrees from vertical.
4
Contract the erector spinae muscles to pull the torso back to the starting upright position. Drive through the lower back muscles to return to neutral spine alignment. Avoid using momentum; move in a controlled concentric fashion.