Compared to other free-weight lateral raise variations, this exercise puts the deltoid under tension for a greater portion of the range of motion, making each rep more effective. It also places greater overload at the top of the movement.
Since the lean-away lateral raise is a unilateral (one-limbed) movement, it facilitates the recruitment of high threshold motor units in lifters with a large strength deficit, in beginners, and in long-limbed individuals.