[Emme]

Originally Posted by Eliana

I should clarify that the 90 second "rest" should be a comfortable jog, like the 4.3 you mentioned. It could also be a brisk walk. It's not standing on the sides of the machine huffing and puffing.

Darn!! (just kidding)

[nelie]

Here is a good visual and description of HIIT
http://bodyforlife.com/library/exercise/cardio

Also Tabata's can kick your butt.

In term's of weight training, body weight exercises are very effective.