Subscribe Now: www.youtube.com Watch More: www.youtube.com Working your quadriceps with a dumbbell requires you to keep a few very important things in mind. Work your quadriceps with a dumbbell with help from a professional personal trainer in this free video clip. Expert: Billy Beck III Filmmaker: Billy Beck III Series Description: Going to the best gym in the world won’t do you any good if you don’t know how to properly utilize all of the equipment. Get tips on how to make the most of your time at the gym with help from a professional personal trainer in this free video series.