Roller devices, systems, and methods for their use to treat or alleviate symptoms relating to soft tissue injuries and ailments. Such a therapeutic system includes at least one roller device that has an axis of rotation and at least first and second rollers oriented perpendicular to the axis of rotation and spaced apart along the axis of rotation to provide substantially continuous lines of contact with an individuals skin. Each of the rollers has a circular perimeter that defines an outer diameter and a contact surface of the roller. The contact surface defines a contact surface radius sized so that the roller applies a level of pressure to the soft tissue beneath the skin when the roller device is pressed with a level of force against the skin of the individual and caused to travel across the skin within the body region of the individuals body.