By Leslie Lindsay So, last week I decided to take a new exercise class.  I have been doing the same-ol, same-ol and had stopped seeing results/feeling good about the routine.  It was time.  So, skimming over the schedule for the spring classes, I choose to take “Intense Cardio Interval.” Sure, it sounded…well, intense but hey–if you don’t challenge yourself, you won’t change yourself.  I went.  It was hard.  It was really, really hard.  There were times I thought I may croack over and die right there in the studio.  But, I stuck it out and loved how I felt afterwards. The instructor called it tabatas.  What?!  I had never heard the term before.  Sounded like tobaggan, of you ask me!  But we weren’t doing any major snow sledding.  And dogs weren’t involved.  Though I felt dog-tired when I was done. So, the deal with tabatas is you work out at your highest intensity ever for 20 seconds (sounds like a cinch, right?!) and then you get a 10-second rest break.  You do the same cardio …