Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Set incline bench to 30-45 degrees. Sit sideways, non-working side against the backrest. Hold a dumbbell with a neutral grip, arm hanging. Engage core, elbow slightly bent. Raise arm until parallel to the floor. Pause, then slowly lower. Repeat, switch arms.
Control movements for maximum muscle engagement. Avoid momentum; focus on deltoid activation. Keep torso stable. Exhale on lift, inhale on lower. Start with lighter weight to ensure proper form.
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