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In this instructional segment, Eric Roberts highlights a common form error in the one‑arm dumbbell row: placing the knee on the bench on the same side as the rowing arm. He explains that this position reduces core stability, encourages excessive hip movement, and consequently removes tension from the target back muscles. To correct this, he advises either keeping the same‑side leg on the floor or, preferably, having both feet planted on the ground while using the opposite hand for support. This adjustment enhances stability and allows for better activation of the back during the row.










