Best answer: Do bicep curls build shoulders? - Be athletic and healthy
Best answer: Do bicep curls build shoulders?
Are curls bad for your shoulders?
How much is a heavy curl?
However, I see a lot of my clients making minor mistakes that make the exercise less effective or even harmful. When performed incorrectly, bicep curls pull the shoulder too far forward and strain the back muscles. These mistakes can lead to back pain and injury.
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Because the barbell curl performs the same motion as the dumbbell curl, except with both hands, the average curl weight for this type of exercise would be approximately half that per arm or 40 pounds for men and 20 pounds for women.