Cycling and Stuff

The spinning class is really taking me down.  I'm getting to the high 150's in HR even though the watts are pretty low.  I had to stop once and rest I was so hammered.  This class used to be easy even if I got up over 160.  Bruce is coming over to help me calibrate the watts on the trainer.  There is a huge discrepency between my trainer and the Y's spinning bikes.  I only averaged 116 watts at 136 BPM.  On my trainer that would have been closer to 280 watts.  I;m slowly getting stronger though.  I was surprised last week when I got over 150 and this week I was in the 150's quite a bit.