13hon MSN
New Research Shows the Curl Is King for Bigger Biceps – and Why Compound Lifts Alone Won't Cut It
After 8 weeks of training, the curls led to muscle growth of roughly 5% in the upper biceps and 11% in the lower biceps. The ...
This routine from trainer James Stirling is designed to be tough from start to finish, pushing your back and arms harder than ...
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