Abduction – movement away from the midline of the body. This occurs at the hip and shoulder joints during a jumping jack movement. Adduction – movement towards the midline of the body.

volleyball spiking and serving result in greater shoulder abduction and horizontal adduction at the moment of ball contact/release than do baseball pitching or tennis serving. Conclusion The authors ...

Deltoid Abduction ... the shoulder which helps to prevent dislocation and allows the shoulder to rotate the humerus around its own axis A throwing action such as a javelin throw Pectorals ...