We did more speed work/interval training in CycleFit today. We had to keep our cadence between 90 and 100 the whole time. I'm glad we did this as spinning fast is something I wanted to work on... and I think I did pretty well. We had a substitute again (I hope Judy is okay). I liked him pretty well. There were also some more scientists in there which was pretty cool. I forgot my pen still, but I burned 358 kJ.