(CNN) — When you think about working out with dumbbells, you probably picture using a set of two, one in each hand. There are many exercises you can do with two dumbbells, but as a strength and ...

Based on your goal (if you have one), or the exercise you're doing ...

When you think about working out with dumbbells, you probably picture using a set of two, one in each hand. There are many exercises you can do with two dumbbells, but as a strength and conditioning ...

If your single dumbbell is too heavy for this exercise right now, don't use it until you get stronger; instead, interlace your fingers in a double fist that you can tap to the floor as you rotate.