When muscles become knotted and tense or damaged, remedial massage provides a healing treatment that can be gentle or strong, deep or shallow. Remedial massage holistically treats the body. The massage therapist endeavours to identify the original biomechanical dysfunction, thus healing the cause of the disorder, as well as the symptoms. Remedial massage uses several specialised techniques to locate and repair damage to muscles, tendons and joints. Massage therapy supports and speeds up the body's own repair mechanisms. A lubricating medium (usually oil) is applied directly on the skin. This ensures that the muscles associated with the disorder are deeply penetrated. Passive joint stretching moves are also used.