Spin!

Very happy to be back at my preferred spin class.  This Suunto system is pretty awesome in the hands of a knowledgeable instructor (90% of the classes don't really take advantage of it, but Joanna uses it for personal coaching - i.e. last interval she asked me to get to 87% of HR max and hold it there for a minute).  I had warmed up for 10+ minutes before the computer went on, but here is data for my 1hr spin...