1
Lie on your back on a flat surface with head supported, arms at sides with palms down for stability, one leg extended flat on the ground, and the other leg ready for movement.
2
Keep your lower back pressed to the floor and engage your core. The extended leg on the ground serves as the anchor and stability point throughout the movement.
3
Slowly lower the working leg from the elevated position back down toward the ground in a controlled manner, allowing the quadriceps to lengthen under tension. Stop just short of touching the ground to maintain constant muscle engagement.
4
Drive the leg upward using the quadriceps to lift it back to the starting height or slightly above hip level, fully contracting the quadriceps at the top of the movement before lowering again.