Preacher curls help you to really isolate your biceps to build serious muscle, but if you’re not using the proper form, you’re sabotaging your efforts to get swole. When you’re pumping iron, the ...

It’s all too easy to cheat during biceps curls, says Men’s Health Fitness Director BJ Gaddour, C.S.C.S. If you allow your elbow to rise or dip during the curl movement, you’ll engage your shoulder and ...

Eb says: One of the most common errors in the preacher curl, especially as you start to try pushing more weight, is the elbow ...

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.