Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Brace your core, keep your neck neutral. Raise the dumbbell forward in an arc, leading with your shoulder. Lift until your arm is parallel to the floor, pause, squeeze your deltoid, and lower slowly.
Maintaining a slight bend in your elbow helps isolate the deltoid and prevents hyperextension, ensuring a more targeted muscle engagement. Focus on initiating the movement with your deltoid, visualizing the muscle contracting to lift the weight, rather than relying on momentum from other muscle groups. Keep your wrist in a neutral, straight position throughout the exercise to avoid unnecessary strain and ensure proper form. Consciously avoid shrugging your shoulders towards your ears; instead, focus on the deltoid performing the lifting action, keeping your upper traps relaxed. Visualize a smooth, controlled arc path for the dumbbell, preventing jerky movements and maximizing muscle activation throughout the range of motion.
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