Foam Rolling is a a modality you can use to relieve tightness and tension in the connective and soft tissue in the body. Known as self myofascial massage it can help increase range of motion, help relax adhesions (knots) in the muscles decreasing pain and help make stretching more assessable. Foam rolling is generally accomplished by using a cylinder shaped roller and body weight to roll over the tissues. Balls, roller sticks and a myriad of other types of tools can be  used as well on various areas of the body.