
The goal of HIIT is to achieve the Afterburn Effect, or in fitness term knows as EPOC (Excess Post-exercise Oxygen Consumption).
"HIIT training increases the resting metabolic rate (RMR) for the 24 hours following a workout due to excess post-exercise oxygen consumption, which explains how a short interval workout can have a longer-lasting effect on body composition change than a much longer cardio session." [ Read more about HIIT in TurboFire here ]
Anyway, in Turbo Fire, there are 15, 20, 25 and 30 minutes HIIT. The shorter session usually involves a lot more plyometric, or targets the major muscles groups to get your heart rate going to the max in a short time. In longer the sessions, there are more less intense workouts inserted in between the plyos - sort of a brief rest within the workout while keeping your heart rate high.
I had been applying that concept with 3x3 turbos this past week in my kickboxing classes. The last 30 minutes of the class needless to say was intense. It's something I like to do once in a while to break up the routine before it gets boring. Given the proper modification and enough motivation, everyone can participate safely and get a great workout.
Workout should be fun.
It should be challenging.
It should transform you.
It makes my day to see members dripping sweat and smiling. I feel I have done my work if they get the workout they need and more.
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