Get started with this exclusive upper-body workout. In less than 30 minutes, these highly effective circuits will target and strengthen every muscle above your waist. All you need is a set of medium-weight dumbbells and your own bodyweight.
To warm up, perform 5 minutes of moderate cardio (such as jogging, jumping rope, or cycling). Complete 3 rounds of circuit 1, then rest for 30 seconds to 1 minute. Boost your heart rate again by running or walking 1/4 mile. Then complete 3 rounds of circuit 2, followed by a cool-down stretch—and you’re done.