Bodybuilding Zottman dumbbell preacher curls have a different movement than regular preacher curls. See the difference between the two types of dumbbell curls from a nationally competitive bodybuilder in this free weight lifting video.
Expert: Brad Aubry
Bio: Brad Aubry is CEO of VersaFit, as well as a national natural bodybuilder, certified personal trainer and a nutrition and fitness therapy specialist through International Sports Science Association.
Filmmaker: Christopher Rokosz