Intervals

Today's interval workout felt really good.  Five 45 second intervals with 1 minute rest.  

5.0 (12 minute pace): max HR 153  = 76%

5.5 (10.54 minute pace): Max HR 183 = 91.5%

5.5 (10.54 minute pace): Max HR 186 = 93%

5.5 (10.54 minute pace): Max HR 208 = 104%

5.5 (10.54 minute pace): Max HR 193 = 96.5%

The last interval was only 30 seconds.  It made me a little nervous that my HR was going so high. My asthma kicked in on the intervals.  I see this as a good thing, because normally I don't workout hard enough on the treadmill or spin bike to spike my asthma.  This was a move to 45 second intervals from 30 seconds.  I took a few days off of work to just R&R after finals; yesterday was the first day I felt really good.