#180--When shortened, the Quadratus Lumborum (QL) can overload the muscles of inspiration, leading to tension in the neck and head aches. A common reason the QL’s are often overworked is a strength deficiency in gluteus medius. If this muscle is weak and cannot stabilize the pelvis during gait, the hip will drop. The only way enough clearance can be made for the leg to come through during the swing phase of walking or running is for the QL to hike the hip. Forced to compensate thousands of times/day for weeks or even years, the QL’s become hypertonic and your neck or head pays the price. So instead of reaching for some Advil for that headache, get off your ass and make it work for once.