Muscle outlines from Body Muscles by Ivan Vulović, Apache 2.0 — regrouped and recoloured for Muscle Train.
Engage your core, keep elbows close. Curl the barbell up by flexing your elbows. Squeeze your forearms at the top, then lower the bar slowly and under control.
Focus on keeping your knuckles facing upwards throughout the entire movement to ensure proper wrist and forearm engagement. Maintain a stable upper arm position by pinning your elbows close to your sides, preventing them from drifting forward or backward. Control the descent of the barbell by resisting gravity, feeling the tension in your biceps and avoiding a sudden drop. Keep your wrists straight and neutral to prevent strain and maximize bicep activation.
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