Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Lie on your side with legs extended and feet stacked. Elbow directly under your shoulder, forearm flat. Hold a dumbbell in your top hand, resting it on your hip. Engage your core and lift hips off the ground, forming a straight line. Lower hips with control. Repeat on both sides.
Keep elbow directly under shoulder. Maintain a straight line from head to heels. Engage your core for stability. Start with a lighter dumbbell. Control movements and breathe steadily (exhale on lift, inhale on lower).
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