HOW: Bend over on the ground and place your arm on a foam roller, thumb up. Ramp up intensity and push the pinky side of your hand into the foam roller. Keeping that engagement, slowly drive the foam roller forward. When you reach up as high as you are able, lift your hand away from the foam roller. You should feel a stretch in your lats, under your arm-pits, during this exercise.
FEEL: You should feel the muscles under your arm-pit working as your push down into the foam roller. You should also feel the muscles in your mid back working as you lift your arm.
