The deltoid is the prime mover in shoulder abduction. It's two antagonists are the pectoralis major and the latissimus dorsi.
Shoulder adductors. Abduction means moving away from the median plane of the body and adduction means moving towards the median plane of the body.
Do you mean flexion and (abd)uction?? If so, the prime mover would be the deltoid muscle with many smaller muscles assisting. If you are in fact meaning flexion and adduction, the prime mover would be the pectoralis major and the latissimus dorsi with many smaller muscles assisting.
The latissimus dorsi and pectorals major are synergists for shoulder adduction
Because shoulder horizontal adduction is performed when the arm is horizontal position (i.e., the elbow is level with shoulder) and adduction is movement toward the center of the body, shoulder horizontal adduction is performed primarily by pectoralis major and anterior deltoid, with an assist by latissimus dorsi.
Pectoralis moves the shoulder joint. It has a sternal and clavicular end , it helps in shoulder joint adduction, cross arm adduction and overhead. Adduction movement means bringing the shoulder towards midline
the antagonist of adduction is the pectoralis major
Abduction is when the shoulder moves away from the body, while adduction is when the shoulder moves towards the body.
Shoulder abduction is when the arm moves away from the body, while shoulder adduction is when the arm moves towards the body.
Shoulder adduction is when the arm moves towards the body, while shoulder abduction is when the arm moves away from the body.
The major muscles involved in horizontal adduction or flexion is the anterior deltoid fibres, pectoralis major and minor. Bicep complex(bbicep brachii, brachioradialis and forearm flexor) comes into action as synergists, if the leverage is long.The antagonists of horizontal flexion is posterior deltoid fibres,teres major, minor, lats and the associated rotator cuff muscle(infraspinatus)
Shoulder adduction involves moving the arm towards the body, while shoulder abduction involves moving the arm away from the body.
The range of motion in shoulder abduction and adduction directly impacts the overall function and performance of the shoulder. A limited range of motion can restrict movement and lead to decreased flexibility, strength, and stability in the shoulder joint. This can affect the ability to perform daily activities and sports, increasing the risk of injury and reducing overall shoulder function. It is important to maintain a full range of motion in shoulder abduction and adduction through proper stretching and strengthening exercises to optimize shoulder function and performance.