Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Grasp an EZ bar with an underhand grip, shoulder-width apart, and stand with your feet together or in a staggered stance. Curl the weight upwards, concentrating on a strong bicep contraction at the top. Lower the bar with control back to the initial position to finish one rep.
The underhand grip can be gentler on the wrists. Avoid body rocking to avoid using momentum. Keep your upper body still and elbows near your sides. Focus your gaze forward to maintain stability. Prioritize slow, deliberate movements to maximize bicep activation.
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