Knee Injuries. 1  Patellofemoral Syndrome. Also called Runner's Knee, problems associated with the patella, or kneecap, are common in runners. 2  Kneecap Subluxation. Many kneecap issues are related to the position of the kneecap within the groove on the end of the thigh bone.
A movement toward the midline is called adduction. Adduct means to bring towards the center. The opposite, abduction is moving away from midline. A movement toward the midline is called adduction. Adduct means to bring towards the center. The opposite, abduction is moving away from midline.
centerline. 1  any line that bisects a plane figure: the centerline of a building plan. 2  a line along the center of a road or highway dividing it into separate sections for traffic moving in opposite directions. 3  Radio. the perpendicular bisector of the line connecting two radio transmitters.