Should I do light or heavy bicep and hammer curls? Right now, I'm doing 5x5 bicep curls which are close to failure on the current weight. The hammer curls I'm doing (8-12x3)
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For bicep curls, are rep ranges from 6-12 ideal for achieving hypertrophy? - Quora
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Hammer Curls:Benefits, Variations And How To Do Properly