When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images The Jefferson Curl may sound like an exercise that will blow up your biceps, ...

Add Yahoo as a preferred source to see more of our stories on Google. Man doing Zottman curl. None of us are strangers to the bicep curl, it’s the cream of the crop when it comes to building bigger ...

Add Yahoo as a preferred source to see more of our stories on Google. There are few phrases that crop up quite so frequently in our workout tutorials as 'don't round your back'. Well, for once, we're ...

The Jefferson Curl may sound like an exercise that will blow up your biceps, but (sadly) it’s far from that. In fact, the Jefferson curl is more of a mobility exercise that strengthens the muscles of ...