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ball and socket
Adduction means to move an arm or leg toward the midline. The midline is the center of your body. The joints that allow this are ball and socket joints and so they also have to turn towards the midline.
Adduction- rowing Abduction- gymnastics
The medial roataion is the movement of Glenohumeral joint .
A saddle joint provides the closest to omnidirectional movement.
ball and socket
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
Adduction means to move an arm or leg toward the midline. The midline is the center of your body. The joints that allow this are ball and socket joints and so they also have to turn towards the midline.
Adduction- rowing Abduction- gymnastics
Abduction is when a body part moves away from the midline.
There are six joints that have movement. The plvotal joint is what allows up and down movement.
The medial roataion is the movement of Glenohumeral joint .
Ball and Socket joint
A concentric movement would be flexing the elbow and curling a dumbbell towards the shoulder, an eccentric contraction would be the opposite movement ie bringing the dumbbell back down towards the thigh.
A saddle joint provides the closest to omnidirectional movement.
To increase the angle of a joint is extension. To decrease the angle of a joint is flexion. (plato users the answer is A.)
You are using the hinge joint at the elbow. The movement is flexion.