Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Set an incline bench to 45 degrees. Lie face down, chest supported. Hold a dumbbell in each hand, palms facing up, arms extended. Keeping elbows close, curl dumbbells up, contracting biceps. Pause at peak contraction. Slowly lower to the starting position. Repeat.
Keep elbows stationary. Squeeze biceps at the top. Use a controlled tempo. Start with lighter weights. Maintain a neutral wrist.
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