"Muscles, ligaments, tendons, and nerves develop adhesion (a form of scar tissue, that by definition, formed without trauma). Adhesion is like taking a piece of gum and putting it between muscles, ligaments, tendons, or nerves so that it becomes difficult for them to slide past one another when moving. It is another way to make muscles stiffer as to conserve energy. But it also is a result of tissue overload and injury."