Training inside due to my broken clavicle hasn’t really been enviromentally different because of the weather outside.  Biking in muggy, 80 degree weather outdoors is about the same as biking in 70 degree weather indoors. I got smart and bought a cheap Schwinn recumbent exercise bike after my crash in May.  It turned out to be about the same price as buying a gym membership for a couple of months, plus I could bike in the convenience of our basement. I still sweat with a fan going full force and I’ll will be happy when I can move to the regular stationery trainer. However, it’s nice to at least keep the legs moving.  I know I’m losing some fitness, but in a way this is a great mid-season break considering how much training I’ve done.