A purely physical exercise as it is running helps burn calories, although not all burn the same amount running the same distance, much depends on some factors such as: the weight or physical condition, speed, slope and the type of circuit. The first thing we must bear in mind is that the body is not an automatic machine, on the contrary, only get us to make an effort, the Agency is not going to burn calories. Therefore, we must not do always the same, or the same distance, the same route and pace. The best is, after a few weeks of training, there to make progress on the above. When carry month and a half running, at least 3 times a week, you can go combining rhythms of the race, alternating shooting more long and slow, with others that are shorter and faster. Thus, the body is going to surprise before a different activity, which is going to require a greater effort. So, we are going to burn more calories. Also, it is advisable to alternate the race with another type of activities, which can create a caloric expenditure, in a different way. For example, we could go running 3 times a week and the remaining days doing activities such as: play some sport, riding a bike, lift weights or swim. If you do exercises that help you develop muscle mass, only once a week, alternating with the races, we will make our metabolism go faster and quemaremos more calories. Also, it is recommended to alternate, rhythms as addresses, in the race. And, we can also include activities that do that we increase our caloric expenditure. Remember that the best exercise to burn calories is the aerobic or cardiovascular because it is the only one who mobilizes the large muscle masses, then we can talk about the localized exercises but they belong to another topic, since they only serve a muscle-toning in particular, either for legs, arms, buttocks, or the famous abdominals, but first you have to do exercises, aerobics and among them one of the best is run if you find yourself with good health in your joints.