Hip joint adduction
In hip joint adduction one leg is moved toward the other leg (toward the midline of the body) from an out-to-the-sides position. Adduction is limited when the moving leg makes contact with the support leg. When the leg is brought across the midline of the body, the pelvis on the side of the non-support leg must be rotated and dropped so that, in essence, adduction in the hip joint opposite the moving leg occurs.
Hip joint abduction
In hip joint abduction (the opposite of hip joint adduction) the leg is moved from the midline out toward the side of the body. The usual range of motion is approximately 45 degrees. The exact amount depends on the tightness of the opposing muscles, tendons and ligaments. If the leg is raised higher the pelvis will have to go into motion to increase the rang of motion.
