Moment at 2:19 in The ONLY 2 Ab Exercises You Need (NO, SERIOUSLY!) by ATHLEAN-X™.
The corkscrew workout is a Pilates exercise that targets the core, particularly the obliques and lower abdominals. To perform the corkscrew, you lie on your back with your arms by your sides and legs raised and extended in the air. You move your legs in a circular motion, drawing circles in the air with your toes while keeping your core engaged and maintaining control. This exercise helps improve core stability, flexibility, and coordination.
Saved by Gurung Anjan.