Target your back and arms with an overhead triceps extension exercise.
Step One: Stand with your feet hip-distance apart.
Step Two: Hold one heavy dumbbell with both your hands and bend your elbows behind your head.
Step Three: Then after bending your elbows, straighten your arms upwards to allow you to lift the dumbbell into the air.
Step Four: Return your arms back behind your head by slowly them bending them lower. This will count as one rep.
Step Five: Do two to three sets of 12 to 15 reps.