Fancy equipment doesn’t build muscle – you do. And a single dumbbell, along with a bit of floor space, is all you need to sculpt the body you want.

How to do it
Perform these exercises as a circuit, doing as many reps of each as you can in 30 seconds, then resting 30 seconds and moving on to the next. Use a single dumbbell the entire time, choosing the heaviest weight that allows you to complete the workout while still maintaining perfect form. Complete three circuits total.