samedi 17 août 2013

Is HIIT Superior To Normal Cardio For Long Term Weight Loss?

By Howe Russ


If you are one of the many people who have recently discovered high intensity interval training as an exercise strategy, you may be wondering how it compares to regular cardiovascular exercise as far as fat burning goes. While HIIT has become one of the most effective weight loss tips of the 21st century so far, very few exercise enthusiasts know much about it.

You'll discover the facts behind this training style today.

Despite being over twenty five years old, HIIT is still fairly unheard of in much of the fitness world, with many regular gym users still succumbing to the old strategy of performing long, steady state cardiovascular exercise to hit the often fabled fat burning zone. Thanks to the constantly developing scientific studies behind the health and fitness industry, long steady state cardio is now yesterday's advice for those who are looking to burn unwanted body fat!

To go back to the roots of HIIT, you need to look at the two studies which brought it into the public eye. The first of which dates all the way back to 1985. Initially designed to test if exercises helped speed the metabolism, scientists noticed that most of the weight loss results were from individuals working harder in the gym. A further study confirmed this, with three weekly HIIT sessions outperforming five regular cardio workouts for fat loss, despite those workouts being twice as long.

The first real instances of people using this new approach in their training was sprinters and swimmers. These athletes saw HIIT as a method to increase their explosive power of short distances, which is very useful in their respective sports.

A 2001 study from Canada provided the first concrete evidence for HIIT as an effective method to lose weight. Studies confirmed that not only did it increase the body's usage of carbohydrates, which is uses for fuel in the workout, it also increased the fat metabolizing enzyme HADH. This was a shock at the time, because it doesn't actually use fat for fuel, it uses carbohydrates. Better still, this increase in HADH lasted for a massive fourteen hours. []

That's right, your body burns calories at an accelerated rate for fourteen hours after finishing a HIIT session, most of which will be fat!

Further research in the same study then went on to confirm that HIIT prevented the breakdown of lean muscle tissue in a way that was far superior to regular cardiovascular activity, while also burning off six times the amount of fat per calorie as it's steady state cousin. That's correct - one calorie burned off during a high intensity workout is worth six times the fat compared to one burned off during a low to moderate session.

Since then, of course, countless new studies have went on to confirm the effectiveness behind interval training and it has become one of the most talked about discoveries in the history of the fitness industry, with countless personal trainers and fitness experts putting their weight behind it.

Like all new fitness concepts, high intensity interval training has recently made it's appearance in the mainstream. This can lead to some labeling it as a passing fad but, having seen the mounting evidence behind it's effectiveness, you now realize that HIIT can become one of the most productive weight loss tips for those who are prepared to learn a little bit about it before jumping in.




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