ABOUT DUMBBELL WORKOUTS: Dumbbell workouts employ only the use of dumbbells, making it a simple, straight forward, convenient and very effective way to workout for muscle gains. If you ever go to a serious gym, you’ll notice the dumbbell rack is always the most crowded area. That’s because out of all the fancy equipment in the gym, it’s still the good ole dumbbells which are the most effective for building muscle fast. For a an easy to follow guide on how to work out with dumbbells completely at home, or at the gym, check out the excellent program below: