[freepertoo]

I was a fitness trainer for ten years (just gave up my certification last May), and I have heard good things about this. Haven’t read the article you posted yet, but from the little I see, this works. You have to make sure you are in good heart health shape, however. Tabata I think it’s called.

[Maverick68]

HIIT me with your best shot?

[RoosterRedux]

It's just a video.

As an aside, I love exercise. I could watch attractive women do it for hours at a time...and there are lots of attractive women in this video.

Seriously though, I do cardio everyday for between 30-50 minutes (plus long bike rides on the weekend) and incorporate HIIT as part of my regular cardio pretty much in the same fashion as in this video (3 times a week). I don't actually rest between intervals, I just slow down to normal cardio pace.

I don't have any way of measuring my improvement except resting HR and blood pressure. My resting HR is around 60. Blood pressure normal. I just turned 70 and have been doing cardio (plus lifting) pretty steadily for 50 years.

The intensity training certainly makes me feel stronger. I wish I could measure my VO2 max.

[RoosterRedux]

This is slightly different than Tabata. Where as the original study IIRC had athletes on a 20 sec. intense, 10 sec rest, the woman in this video does a 30 sec sprint and a whopping 4.5 minute rest (I think that's what she said).

Also, as I recall, the Tabata study focused only on VO2 max and anaerobic capacity whereas this study takes a tiny spec of muscle tissue and analyzes it.

All that said, it sure would be interesting to hear the opinion of a professional fitness trainer like yourself.

[HamiltonJay]

HIT isn’t new... the ROM machine has been based pretty much on this general idea and has been around for decades.