Bicep training: How to effectively target them to gain volume?
The biceps curl is undoubtedly the most practiced exercise in the gym, yet perfect execution is rare. Many trainees sacrifice technique for weight, thus limiting their gains and increasing the risk of injury. Bodybuilding expert David Costa explains how to optimize each repetition for massive, defined arms [ 00:15 ].
The major mistake: Using momentum (the “cheat curl”)
The most common mistake is using leg drive, back tilt, or shoulder movement to lift the bar.
Why does cheating hinder your progress?
By using momentum, you drastically reduce the mechanical stress on the biceps. The stretch is limited, and the force is generated by the entire body except the target muscle [ 01:05 ]. For maximum growth, you must isolate the movement: lock your shoulders, elbows, and wrists. Only the forearm should be mobile to ensure maximum stretch and contraction of the biceps [ 01:50 ].
What grip width should I choose for the bar?
The spacing of your hands on the bar changes the angle of the humerus and, consequently, the portion of the biceps being worked [ 02:08 ].
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The close grip : It induces an internal rotation of the humerus. This allows for greater emphasis on the long head of the biceps (the outer part of the arm, responsible for the “peak”) [ 02:26 ].
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The wide grip : It promotes external rotation. Here, the tension is primarily placed on the short portion (the inner part of the arm, which gives thickness) [ 02:41 ].
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The anatomical grip : This is the reference grip. It corresponds to the natural alignment obtained by a simple forward rotation of the wrist from a resting position. It is generally wider than the simple width of the shoulders [ 02:47 ].
[Image showing the different parts of the biceps]
Elbow position: In front of or behind the torso?
The positioning of your elbows relative to your torso is a powerful lever for varying muscle recruitment [ 03:01] ].
Target the short portion (Inside)
To emphasize the short head, prioritize exercises where the elbows are in front of the torso . This includes movements like the preacher curl, the concentration curl, or the spider curl . The tension is very intense right from the start of the movement. [ 03:08] ].
Target the long portion (Outer)
To target the long head, opt for exercises with your elbows behind your torso . The incline dumbbell curl is a classic example. However, be mindful of your shoulder flexibility: don’t extend your arms too far back to avoid excessive strain on the front of your shoulder [ 03:26 ].
Conclusion: Personalize your training
For well-rounded biceps, it’s wise to combine these variables. For example, a wide grip with forward elbows will maximize the focus on the short head [ 03:48 ]. Eliminating extraneous movements and understanding your arm’s anatomy will allow you to take your physical development to the next level. As David Costa reminds us, technical precision is key to progressing without injury [ 03:56 ].
