1
Lie supine on a flat surface with your body fully extended and arms at your sides or crossed over chest, legs straight and together
2
Engage your core and prepare to lift your torso by initiating flexion at the lumbar spine; keep your neck neutral with eyes focused upward
3
Slowly lower your torso and hips back toward the starting position while maintaining tension in the abdominal muscles throughout the eccentric phase
4
Lift your torso and hips upward by flexing the spine, bringing your chest toward your pelvis in a controlled crunch motion; exhale as you lift and return to full extension