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? For this movement, ...

Lee Boyce, C.P.T. The spider curl is a variation of the biceps curl that utilizes a straight bar, dumbbells, or an EZ-bar. Spider curl's form is a little different than that of a classic curl as your ...