3. Muscles at Work

Exercises like the Russian twist work muscles in the area that many people refer to as their core. Specifically, this exercise involves the oblique and abdominal muscles. The obliques allow for side-bending and rotation. The transverse abdominal muscle provides stability to the chest, pelvis, and spine. The rectus abdominis muscles are what many people refer to as the abs or six-pack, and they are responsible for flexing the spine in the lower back.

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