This Article from HIIT Science Blog by Nicki Almquist and Bent Ronnestad is exactly continue of my article in the new magazine MR Football .They analyse the two common formats Long Intervals (LI) and Short Intervals (SI) ,prescribe the key physiological difference between SI and LI and conclude ,spending more time in VO2max and at high intensity exercise (Higher Power Output ) has been proposed to be the determining factors needed for improvements in both cardiospiratory fitness and muscular adaptations .
https://hiitscience.com/optimizing-your-hiit-go-short-to-get-more-bang-for-buck/
https://hiitscience.com/optimizing-your-hiit-go-short-to-get-more-bang-for-buck/