What exercise involves flexion combined with rotation?

The exercise that involves flexion combined with rotation is the Saw. In this exercise, the participant bends forward (flexion) while also rotating the torso to reach toward the opposite foot. This movement incorporates both the flexion of the spine and a twisting action, which helps target the oblique abdominal muscles and enhances spinal mobility.

The Saw not only emphasizes the importance of proper alignment and control but also engages multiple muscle groups, including the abdominals, back muscles, and hip flexors, while improving flexibility and coordination. This dual action of flexing and rotating makes it a distinctive and effective exercise within the Pilates repertoire.

While the other choices involve different movements, they either focus solely on rotation, flexion, or other planes of movement without combining both flexion and rotation to the same degree as the Saw.