If toning is a goal of yours, you need to build muscle while losing fat. The toned look = having muscle while being lean enough for that muscle to appear. This cant be attained by cardio and cardio alone. You will burn fat as well.
Spot reduction; the impossible.
Spot reduction is a MYTH! It is IMPOSSIBLE to spot reduce., Meaning to take a body part and reduce the fat surrounding the muscle. To lose fat anywhere on your body you need to burn calories by following a program that involves both cardiovascular training and weight training. In doing so, you will decrease fat stores throughout your entire body, including the problem areas