Think about your favorite pair of jeans, fresh out of the dryer, certified personal trainer Jessica Smith says in the Shape.com video above. A little too stiff for you to, say, squat all the way to the floor?
Cold muscles are kind of like those stiff jeans, she says: If they're not loosened up, you won't be able to perform a full range of motion through some of your favorite exercise moves. Enter the foam roller. This tool is well-known for relieving stiffness and increasing mobility, which can in turn enhance performance in your next workout.
Ready to roll? Check out the video above to find out which five spots Smith recommends starting with.
--Posted by Sarah Klein