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Abduction is a movement of a body part away from the median plane of the body (think someone raising their leg or arm away from their side). Adduction is just the opposite, meaning movement of a body part toward the median plane of the body.
Types of Movements of the Joints. 1  Flexion and Extension â Extension occurs when the surfaces get farther apart and the bones straighten. 2  Flexion results in a decrease of the angle at the joint and brings the bones closer together. 3  They occur in the sagittal plane around a frontal coronal axis. Abduction and Adduction â frontal plane movements around a sagittal axis occur at multiaxial joints like the bal and socket joint of the shoulder or ellipsoid joints. 2  Abduction is movement away from the midline of the trunk of the body. 3  Adduction is movement medically toward the midline of the body.