Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Engage your core, roll shoulders back and down. Lift dumbbells to the sides, thumbs up, to a parallel position. Pause, squeeze your shoulders, then slowly lower.
Focusing your thumbs upward throughout the movement helps ensure proper external rotation and prevents wrist strain. Initiate the movement by leading with your elbows, drawing them slightly away from your body to engage the shoulder muscles effectively. Consciously keep your shoulders down and away from your ears to prevent shrugging and maximize shoulder blade engagement. A slight forward angle of your torso can help maintain balance and core stability during the exercise. Control the descent of the dumbbells to maintain tension on the muscles and prevent momentum from taking over.
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