If you want an intense exercise that will really burn fat and also build muscle then try doing some deadlifts. Of course most people stay away from deadlifts because it is such an intense exercise however what makes deadlifting so intense is also what makes it such a good exercise for building muscle and losing fat. Deadlifts are a complex weight lifting exercise that involve all the large muscle groups that your body contains which is exactly what you want. By involving these large muscle groups you require a lot of energy meaning your body will have to burn stored fat for fuel.
Involving these large muscle groups is also the best way to gain new muscle which will help increase your metabolism all the time by giving you a more muscular physique.
One way to make deadlifting a little easier and enhance the weight loss and muscle building effect is by using Thermo Phen Phen about thirty minutes prior to a squat workout. The increased energy you will gain from Thermo Phen Phen will make you want to deadlift more weight and perform more repetitions which will ultimately cause your body to burn more fat and stimulate more muscle growth which will lead to that lean muscled body that you want.