super human strengths are needed just to make it to the pro peloton. enormous lung capacity and heart efficiency. resting heart rates around 30 bpm. from there begins the search for the next next little thing to gain advantages. bike technology consistently tweakes toward what some call progress offering small gains to the racers. while team doctors and scientists seek new and untested ways to push the human body beyond it's limits.
in the context of bike racing the fact that Chris Froome tested at twice the legal limit for an asthma medication is not surprising.
Alistair pointed out and I agree how entertaining it was to watch stages of the Tour live on OLN early in the morning before work back when Lance and Ullrich and Beloki and the gang were juiced up beyond belief. it was good bike racing it ws fun to watch it was dramatic
i haven't watched a Tour stage for a long time and it's not because I'm bummed about the performance enhancing drugs. I have a great deal of respect for Froome as an athlete but I do not believe he's much fun to watch on tv.