Hold the dumbbells by your side and lower your body into a squat position. Make sure your knees stay in alignment with your ankles and that the majority of your weight is in your heels. You should be able to lift your toes. As you come up from the squat, curl the weights and then immediately press overhead into a shoulder press. Repeat this exercise 5-8 times. This exercise works every muscle in your body and should elevate your heart rate.
Remember to choose a weight that is challenging without compromising your form.