Foam rolling removes knots and tension, much as a massage would. The pressure from your body weight against the roller forces the knot out, leaving you with muscles that are less sore, more mobile, and less prone to injury. Over the years, a number of new product have come out that work off the same principle as the foam roller, but feature different designs. These products tend to be more packable and can help you target different body parts with greater effectiveness. You may want to have a few different rollers available, so you can mix things up depending on how sore you are and which areas need targeting.
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