So.. today 45 minutes at an average of 144 bpm, and 2.10 miles in 40 minutes..

And Yahoo News had an interesting article on what is "scientifically proven" to be the best Abdominal exercise.. Using an Exercise Ball , Pike and roll out as seen on this video that accompanied the article.

I tried it.. once I found my balance (which was worthy of a hilarious YouTube video by itself) I can only agree.. that definitely worked them hard in just a few repetitions.