I need an explanation on what he means. shouldn't the scapular retractors be activated first in a pulling motion? why is a faulty pattern? where does scapular adduction occur in pulling motions like a row?
from paul chek's "movement that matters"
"An example of faulty load sharing can be witnessed in those individuals who have been taught to adduct their scapulae prior to initiating a pull with the lats and other muscles. This faulty motor sequence disrupts load sharing by first recruiting the scapular adductors, shortening them beyond the range of their optimal length/force and length/tension relationships, which then leaves the scapulohumeral musculature to perform the remainder of the work. This often leads to strain and trigger point development of the teres major, teres minor and infraspinatus muscles, or otherwise known as pattern overload.(1, 2)
The athlete who regularly performs pulling exercises in the manner described above will likely have a shortening of the scapulohumeral musculature which eventually leads to faulty scapulothoracic rhythm. The result is scapulae that rotate prematurely during all pulling or abduction movements. Over time, this results in stretch weakness of the middle and lower trapezius, and rhomboid musculature. Individuals with this type of dysfunction will present themselves clinically as experiencing pain between the shoulder blades and often demonstrate reduced range of motion in shoulder abduction, internal rotation, and shoulder flexion."