Friday, September 27, 2013

The Concept of Quick and Short : High Intensity Interval Training



The Concept of Quick and Short : High Intensity Interval Training
While he is now disgraced there are a lot of lessons to be learnt from Lance Armstrong’s life. All said and done he is a cancer survivor who has been through a lot. While he won with using performance enhancing drugs one must not forget that everyone was on performance enhancing drugs on the tour those days.

One of the things one should not copy from Lance’s life is consumption of drugs and lying. However, there is a lot to learn from his method of training. One of these is the concept of high intensity training. It was through ruthless high intensity interval training that Lance rode his opponents into the dust.

Most of us give an excuse that they do not exercise because they are pressed for time.  It is a stale excuse; in most cases I am sure they spend more time in front of the TV or on social media internet. However, there are some amongst us who are actually pressed for time. High intensity interval training is a concept by which none of us can ever give time as an excuse. In addition I am convinced that it is superior to spending long hours exercising at lower intensity.

The whole concept of High Intensity Training is to spend about 5 to 6 minutes exercising at highest intensity or close to highest intensity. Remember a Lion or a Cheetah or a Deer does not sprint for more than 5 to 6 minutes a week. They only do this while hunting prey or escaping from the predator.  The rest of the time they just amble about or rest.

High Intensity Interval Training (HIIT) Experts advice is to spend twenty minutes a day which consists of 15 seconds of all out effort followed by 10 seconds to 2 minutes of relaxed effort. Initially 15 seconds all out effort will need 2 minutes of very relaxed effort like walking. As you grow fitter this period of relaxed effort to regain breath and energy can be reduced. An initial routine for a beginner would be 8 sets of 15 sec sprints followed by 2 minutes of recovery.
 HOW IT WORKS :  Researchers have studied high-intensity training extensively, and the basic premise is that such efforts lead to many of the same physiological adaptations achieved in traditional endurance-training models. In fact, a 2005 study found that high-intensity interval training doubled an athlete's time to exhaustion This is appealing to time-crunched athletes because the efforts required are as much as five times shorter than traditional training.
Researchers   examining the effectiveness of short, high-intensity intervals for improving aerobic performance have also shown an increase in the maximum amount of oxygen a muscle can utilize.  Simply speaking it means your cardio-vascular system fitness will improve faster through HIIT.
Weight Training through its concept of repetitions and sets is an ideal form of high intensity training. The catch is you should use progressively increasing loads and also do such exercises which exercise the large muscles of the body. Also the breaks between sets should never be more than 2 minutes.  I have often seen people in gyms arm curling a two pound weight ten times for months on end and then giving up saying that their bodies do not respond to exercise.
Remember the body responds positively only when it is overloaded for short periods to failure and then given adequate time to rest and recoup from this stress.  
We still don’t really know the minimum amount of exercise required to induce significant health and fitness benefits. But a recent study has cut down the exercise time even further, showing that just six ten-second all-out sprints, spread throughout a week can improve aerobic fitness and blood-sugar control.
Evidence states that the HIIT approach to exercise can substantially improve aerobic fitness while providing a range of positive health outcomes, including better blood-sugar control, blood pressure and blood vessel function in a range of conditions such as obesity, metabolic syndrome, diabetes and heart disease.
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