What recurring theme you hear from most health gurus on how to lose weight? The answer - "do a lot of cardio." You'll hear from almost all coaches of diet you need to eat fewer calories and exercise more cardiovascular. This is the old mantra "Get-on-a-carpet-and-run". Of course, this advice is due to the belief that your body is a balance of energy and have to burn more calories than you consume to lose weight. So what is the result of cardio?
Cardio exercises are priced exclusive. Now when I say cardio, I mean the cardiovascular endurance training. Keyword: resistance. Cardio is a long sessions physical tensile and heart rate increase during periods of at least 20 minutes (usually 45 minutes +). Examples of cardio exercises are running on a treadmill for 30 minutes, a long bike ride, swim for a long period of time, running more than 5K, or an aerobics course of an hour. Note that I do not include sprints in this category. Remember that the length must be at least 20 minutes to be considered cardio.
So what is the problem with the cardio? Cardiovascular exercises burn muscle while keeping fat! You read that right. After a long interval exercise, your body will burn muscle for fuel, and then store more energy in adipose tissue. From a physiological standpoint, this makes perfect sense! Why your body looks much muscle as you move from one place to another? Locomotion base does not require a large amount of muscle. Your muscles are actually an obstacle: its weight requires more effort, and burn calories simply to function. Having more muscle increases your metabolism which means you burn more calories than the same amount of activity. Now this may seem like a lot to you (especially if you are trying to lose weight), but is terrible news for grabbing body energy. To accommodate the long cardio sessions, your body has to be as light as possible while maintaining an energy reservoir. And what is the best way to store energy? Adipose tissue, of course. There are more fat calories per gram of carbohydrate or protein. Therefore, to maximize the energy storage and minimize weight, body fat stores and burn more muscle. The reason why marathon runners are not muscular.
Of course, many people are obsessed with the appearance of weight loss. Yes, it is true that cardiovascular exercise can help you lose weight. After all, I have to say that your body wants to minimize the weight to take the strain of the muscles of the legs. If your goal is simply weight loss, cardio training can help you get there. But weight loss is simple: a terrible danger. You will end up like those marathon runners who are underweight, but are clinically obese based on body fat (> 30%). High body fat is not healthy, no matter what your weight is. The conclusion is to focus on intense bursts of short-term exercise, not fat, long cardio.