Energy Expenduture
by Brad
(Canada)
I was 305 Lbs and have lost about 30 Lbs doing a mixture of Cardio and Weightlifing (high reps *3 sets) for the last 7 months, its not Greatest Loser fame but a good start.
My friend told me about H.I.I.T. training at work and I Googled it and found your site. It has me quite excited. I’m just a bit confused and would ask for some clarification.
In a conventional aerobic workout the body burns the fat, that is why your wanting to spend your time in your 70% - 85% Maximum Heart Rate.
With H.I.I.T work out we want the body to burn the energy in my major muscles so that my body is forced to go to my fat storage over the next 24 - 48 hours and replenish them correct?
From what I have read its math, energy in (food) minus energy out (exercise and living) equals weight gain or loss.
So I guess my question is, does H.I.I.T's training burn a higher percentage of Calories over the exercise time in terms of energy used up in my Major muscle groups, and or does the replenishment of this muscle energy use more fat stores over aerobic exercise. Because its takes energy from fat, but over a short time?
I don't know if I explained it well but is calories in H.I.I.T's recovery from fat deposits > than calories burnt from fat in aerobic exercise?
Thanks for the great information
Answer: Actually you burn only about half the amount of calories in a HIIT workout compared with an aerobic one, but you are completely correct that the body burns more energy over time.
This process is called Epoc and can last for a few minutes with aerobic training or up to 40 hours with interval training.
Epoc raises your metabolism and its in this raise that you end up burning off more fat over time and this is key.
Research was done on Interval training in a study by Tremblay and it was discovered that even though interval training had a much lower calorie cost it, minute for minute it burnt 9 times more fat than steady state aerobics
