Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Attach a handle to a low pulley. Stand facing the machine, feet shoulder-width apart. Grasp the handle with a neutral grip (thumb up). Step back to create tension, arm extended. Keep elbow close to your torso, wrist straight. Curl the handle towards your shoulder, flexing your elbow. Pause at the top, squeezing your biceps. Slowly lower the handle, controlling the movement. Repeat on the opposite arm.
Maintain a neutral grip. Keep your elbow stationary. Avoid swinging; control the movement. Engage your core and maintain good posture. Start with a lighter weight.
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