The Mulligan Concept also originates from New Zealand.  This approach melds well into the McKenzie Methods classification system.  The Mulligan concept uses therapist-applied mobilizations with movement in the extremities and sustained, natural apophyseal glides to the spine to restore normal, pain-free motion.  The concept uses the therapist-applied force to correct what Mulligan describes as positional faults in the joints that prevent normal joint motion and lead to the presence of pain.