In this brief instructional video, the presenter outlines three common form errors people make when performing the dumbbell rear delt fly and provides clear cues to correct them. The first mistake is allowing the dumbbells to travel behind the torso; instead, the lifter should push the weights outward, keeping them in line with the side walls. The second mistake is leading the movement with the hands, which places the hands above the elbows at the top; the correct cue is to lead with the elbows so that the elbows finish slightly above the hands. The third mistake is raising the dumbbells too high; the optimal range of motion ends when the hands reach roughly parallel to the floor. The video’s purpose is to improve rear delt activation and prevent shoulder strain by ensuring proper movement mechanics.
