Adduction

Adduction- rowing

Abduction- gymnastics

the antagonist of adduction is the pectoralis major

When the arms moves inward and toward the side of the body refers to a condition called adduction. The arms and legs can do this at any point and turn inward towards the mid line of the body.

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