Final answer:
The prime mover for the seated row exercise is the rhomboids.
The prime mover for the seated row exercise responsible for scapula retraction is the rhomboids, which include the rhomboid major and minor muscles.
Step-by-step explanation:
The prime mover for the seated row exercise, responsible for retraction of the scapula, is the rhomboids.
The prime mover for the seated row exercise responsible for scapula retraction is the rhomboids, which include the rhomboid major and minor muscles.
The prime mover for the seated row exercise, responsible for the retraction of the scapula, is the rhomboids. The rhomboids consist of rhomboid major and rhomboid minor and are located on the posterior thorax. Upon contraction, these muscles move the scapula medially which can pull the shoulder and upper limb posteriorly. This is distinct from the latissimus dorsi, which is a broad, triangular muscle located on the inferior part of the back that is primarily responsible for other movements such as adduction, medial rotation, and extension of the humerus.
It is important to note that other muscles such as the trapezius and the erector spinae group also play roles in the movement and stabilization of the back, but they are not the primary muscles responsible for the scapular retraction during the seated row exercise.