To specifically target the posterior deltoids during rows, use a 45° incline bench, a wide grip, and avoid maximal scapular retraction to limit trapezius involvement.

noli's read

The biomechanical approach suggested by Enzo Foukra aligns with the principles of functional anatomy. A study published in the Journal of Strength and Conditioning Research confirms that the angle of torso inclination and grip width significantly alter muscle recruitment; a wide grip with elbows flared effectively promotes greater posterior deltoid activation compared to a neutral or narrow grip (Source: EMG studies on rowing variations). The idea of avoiding excessive scapular retraction is a pertinent technical observation: by limiting scapular movement, the engagement of the trapezius and rhomboids is mechanically reduced, which allows for greater isolation of the rear shoulder, though this may reduce the overall stability of the exercise. The use of an incline bench is a common practice in strength training (RCT/observational type) to stabilize the torso and limit momentum, which is validated by the empirical practice of strength and conditioning coaches. Overall, the advice is technically consistent for a specific isolation goal, without, however, constituting an absolute truth for overall muscle growth.

the sources

No named source held this one up — that absence is part of the verdict.