KinX Learning

ELearning in the Kinesiology of Exercise

Middle Deltoid

The deltoid has three distinct sections - the anterior, middle and posterior portion, which cover the front, top, and rear of the shoulder respectively.


The middle deltoid originates on the top of the acromion.


It inserts on the deltoid tuberosity of the humerus (just above the center of the bone).


Moving the arms laterally.

Middle Deltoid