In the second installment of our six-part core lab, Tonal Instructors Dr. Liz Letchford & Coach Paul Wright guide you through a workout to maximize your rotation. This conditioning workout consists of mountain climbers, side planks, Russian twist, penguins and more —including a special activation workshop to find your optimal core. This workout focuses on the two functions of the core when rotating: allowing for the transfer of power from hips to shoulders and to rotate on its own. So grab some water, a towel, and get ready to sweat a little!