Cant wait to get home and watch this, I always knew that doing short sprints really fast in a short period of time has ALWAYS been better for you than just running for hours on a treatmill.
Im glad this stuff is finally being exposed.
Better at what?
People keep confusing the issue by insisting one is better than another without stating what for.
Few people run for hours on end anyway and there are downsides to suggesting only 3 minutes of training a few times a week. Your body will still adapt to 3 minutes of the same level of training, it will likely take longer than it would take to adapt to 30 minutes of far less intensive training, so what.
It's fairly unhealthy to live the way we do, hours behind desks and telling kids/encouraging people to only do 3 minutes exercise a day seems a step in the wrong direction. The actual physical benefit might be as good as longer less intensive exercise, what about the mental effect, what about routine. In general we were designed to move quite a bit, I'd prefer my kid(if I have one) gets used to a decent amount of activity every day to become used to being an active person. So if they end up in a desk job like most people they will still feel the want/need to get up and move about for a decent amount of time, to be outside, moving, light or heavy exercise.
HIT is about efficiency in time training, nothing more or less, since when was it difficult to work out working harder is better.
What are the mental effects as said, levels of endorphins from exercising 3 minutes a day instead of 30, are people happier and healthier people(not fitter) from walking 30 minutes every day, or from doing some HIT 3 minutes a day.
There is far more to life than JUST fitness and how quickly you can gain it. If your only goal is fitness and you can't work out that HIT is good all on your own, you've got bigger problems.