Standing Twists Stand with your feet shoulder-width apart. Put both your hands in front of you at chest height. Lift your elbows so they’re level with your hands. Quickly turn your upper body to the left. You should feel a stretch through your back and trunk. Your back may crack, which is okay as long as you don’t feel pain. Turn the other direction and repeat 10 times on each side. Lateral Trunk Leans Hold a broom handle, hockey stick, or a piece of PVC tubing across the back of your shoulders. Lean to your right so that you feel a stretch through your left side. Immediately switch to the left and repeat ten times on each side. Stability Ball Abdominal Stretch Lie face-up on a medium-sized stability ball so that your shoulder and upper back are supported by the ball and your feet are on the ground. Hold a small weight plate over your head with your arms straight and parallel to the ground. Lower the weight plate while pushing the floor away with your feet. Touch the plate to the ground (or as close as you can) so that you feel a stretch in your abs and back. Lift the plate up so that your arms are parallel with the floor again and repeat ten times. Twisting Lunges Lunge forward so that your back knee touches the ground and your torso is upright. Twist your torso to the left and then the right with your in front of you. Repeat on the other side and perform ten lunges on each side. References: https://www.jenreviews.com/dynamic-stretches/