This video would definitely be rated "killer". The good thing, is that all the moves can be easily modified, so it is a video to grow with. It starts with a very thorough warm-up, with a fun combination that gets your heart-pumping right away. After a brief stretch, Cathe moves into the first of 10 intervals. Each starts with a short aerobic step combination that is perfomed 6 times. Then she moves into an anaerobic interval that gets your heart racing. Most of the anaerobic intervals are high impact or plyo moves done on the floor. Cathe does show modifications and with this tape, you probably will have to modify! There is an interval with plyo jacks and another with power scissors that seem almost impossible and go on forever. After each anaerobic phase, there is a simple routine of grapevines and side steps to let your heartrate recover. The aerobic step portions are fun and Cathe uses a lot of familiar moves from her other videos. This is definitely an advanced tape and you really need to be familiar with Cathe's style before trying this one.

Overall, I really love this tape but have to pysch myself up to do it. Now that I realized it's ok to do the modifications, I enjoy it more and don't dread it. In fact I now feel exhilerated when I'm done. The soundtrack is awesome and fits the workout well. Like I said, it's a very advanced tape, but it's do-able because of the modifications that Cathe demonstrates. If you can get through a Cathe tape like Powermax, then you would have no problem with Intverval Max - just remember modify, modify, modify!

Instructor Comments:
As usual, Cathe is a top-notch instructor. It is amazing how she can do this workout on an 8 inch step and jump so high during some of those moves!

Janet W