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High Intensity Interval Training

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The science behind HIIT (HIGH INTENSITY INTERVAL TRAINING) and its
effectiveness
What is HIIT?
High intensity Interval training (HIIT) has recently got immense popularity among fitness freaks.
It is frequently being advised and advocated by sports medicine and fitness professionals.
Despite increasing popularity, HIIT is not known and understood fully by people. To know the
science behind HIIT and effectiveness of this technique, it is imperative to know first what it
really is.
High Intensity Interval training (HIIT) is also called Sprint Interval Training (SIT). Routine or
traditional exercise approaches focused on a steady performance of various exercise repetitions
and the entire exercise progressed with more or less the same intensity, although a brief warm-up
phase preceded the exercise in most cases. In contrast, HIIT refers to an exercise technique in
which short spans of vigorous exercise alternate with spans of low-intensity exercise which can
be considered as rest or recovery spans, which allow the person undertaking HIIT to regain
strength for the upcoming vigorous span (Karlsen , Aamot, Haykowsky & Rognmo, 2017)
Increasing studies implicate high-intensity interval training (HIIT) as a time-saving and effective
exercising technique to result in improvement of cardio and respiratory well-being (Gillen &
Gibala, 2014).
The science behind HIIT
Coming to the science behind HIIT, it provides its benefits with the following mechanism. While
performing HIIT, the chemical channels in the muscular cells which undertake calcium ion
balance get confused. The confusion generates a change at the level of cells which needs energy

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generation to get more efficiency. For those undertaking exercise, this result in enhanced
endurance as well as rapid increase in muscle mass (Park & Alice, 2018). Not only is this, but
the outcomes of HIIT more than those of the workout itself. The total sum of calories exhausted
are greater generally than the conventional exercises as greater post-exercise oxygen utilization,
or the post work-out period in which the muscles are in their restoration phase, consumes greater
energy post high intensity spans, busting higher calories than any other form of physical
training (Kravitz, 2018).
Effectiveness of HIIT
The American College of Sports Medicine (Kravitz, 2018) has reported HIIT to be very
effective in terms of providing the following benefits:
HIIT ensures physical fitness both anaerobic and aerobic.
HIIT is especially helpful in lowering and stabilizing blood pressure values. It can be
advocated as a first line defense against high blood pressure, before any medicines are
prescribed.
Improvement of the cardio-vascular well-being of the person undertaking HIIT on a long-
term basis.
Improving the Insulin sensitivity of various tissues and organs of the body. This way,
HIIT helps in lowering the dose of insulin in diabetics who already use it and potentiating
the effects of other diabetic medicines.
Improvement in Serum cholesterol levels leading to better outcomes of health.

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The science behind HIIT (HIGH INTENSITY INTERVAL TRAINING) and its effectiveness What is HIIT? High intensity Interval training (HIIT) has recently got immense popularity among fitness freaks. It is frequently being advised and advocated by sports medicine and fitness professionals. Despite increasing popularity, HIIT is not known and understood fully by people. To know the science behind HIIT and effectiveness of this technique, it is imperative to know first what it really is. High Intensity Interval training (HIIT) is also called Sprint Interval Training (SIT). Routine or traditional exercise approaches focused on a steady performance of various exercise repetitions and the entire exercise progressed with more or less the same intensity, although a brief warm-up phase preceded the exercise in most cases. In contrast, HIIT refers to an exercise technique in which short spans of vigorou ...
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