1
Start in a plank position with hands shoulder-width apart, arms extended, body in a straight line from head to heels, core engaged, and feet together or hip-width apart.
2
Prepare by ensuring a tight plank with neutral spine, shoulders packed, and engaged core. Position legs straight and ready for movement.
3
Lower one leg by bending at the knee, bringing the heel toward the glutes while maintaining a level plank position. The opposite leg remains extended and straight.
4
Extend the bent leg back to the starting position with a controlled movement, fully straightening the knee. Alternate legs in a controlled alternating pattern.