Dynamic stretching — controlled motion in body parts (arms, legs swinging, torso twists etc.) to the limits of your range of motion (ROM). (personaltraining4u.net)
Side to side torso twists — raise your straight arms sideways and rotate your torso from one side to another. (personaltraining4u.net)
In this full - length nude portrait, her upper torso twists away from the camera. (wcma.williams.edu)