@emgfitnesslabs: 👇 Explanation below Cable curls or barbell curls—which one is better for bicep growth? The truth is both are effective exercises, but they don’t challenge the biceps in the same way. With a traditional barbell curl, resistance changes throughout the movement. There are portions of the rep where the biceps aren’t under maximum tension, especially near the bottom of the range of motion. Cable curls solve this problem by keeping constant tension on the biceps from start to finish. Because the cable continuously pulls against the muscle, the biceps have to work harder throughout the entire rep rather than only at specific points. In our testing, the standard barbell curl produced 48% activation in the long head and 68% activation in the short head. The cable variation increased activation to 84% in the long head and 100% in the short head. The reason is simple: more constant tension means more mechanical tension, more time under tension, and a stronger overall stimulus for muscle growth. This doesn’t mean barbell curls are bad. They’re still one of the best exercises for building strength and adding size. But if your goal is maximizing bicep activation, the cable variation has a clear advantage. We’ve tested hundreds of exercises and exercise variations using EMG technology to identify what actually works. Follow for more evidence-based training tips, exercise comparisons, and EMG breakdowns. The best exercises, techniques, and coaching cues are all inside the EMG Exercise Library. 🔗 Link in bio. #emg #biceps #cablecurls

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Thursday 18 June 2026 21:13:00 GMT