What exercise involves lateral flexion of the spine as a primary function?

The exercise that primarily involves lateral flexion of the spine is the Corkscrew. This exercise focuses on the movement of the spine as it bends side to side, promoting flexibility and strength in the lateral muscles of the torso.

Corkscrew engages the oblique muscles and helps to improve core stability while allowing for the lateral bending motion. This movement is crucial for developing balance and control within the body, as well as enhancing overall spinal mobility.

While the Twist does involve rotation, it does not emphasize lateral flexion as its main action. The Side Kick is primarily a leg movement focusing more on hip engagement and stabilization rather than spinal flexion. Rocking is more about control and balance of the whole body rather than specific spinal movements.