Grab a foam roller and place it on the ground. Come into a high plank position with your forearms on top of the foam roller. For more stability, place your feet slightly further than hips-width apart. With control, begin to roll the foam roller forward with your forearms while maintaining proper form. Then, roll the foam roller back to the starting position. Complete for 30 to 60 seconds.
If this is too advanced, you can perform a body saw.