If you’re looking to blow up your biceps, you’re likely a fan of the preacher curl. (Okay, or maybe you hate doing them. But either way, they’re on your radar.) Lots of gyms have specialized preacher ...

If the Terminator movies taught us anything, it's that machines can't be trusted—and that's especially true when discussing certain exercise machines in the gym, including the preacher curl machine.

The preacher curl can be an essential addition to your training routine to help build big arms and make your biceps pop, but are you sure you're even doing the exercise correctly? Before you grab a ...