If you want weight loss, "HIIT" is of no use to you. The best track sprinters in the world can barely summon the power necessary for toasting a single slice of

If you want weight loss, "HIIT" is of no use to you. The best track sprinters in the world can barely summon the power necessary for toasting a single slice of bread. Very few people have energy reserves >30kJ when doing work above VO2max. Meanwhile, you can just spin at 150W on a cycle trainer and burn >2 MJ (that's quite a few slices of toast) for every hour you put in.