Did you watch the video? Maybe you missed the part about fast twitch muscles losing their power quickly and slow twitch muscles being able to go on for hours. The cycling sprinter also has a team helping him get to the sprint as fresh as possible. Which makes those 2 mountain stages that Thor Hushovd won some years back even more incredible. People talk about his descending during those wins. He climbed the mountains by himself without a team pulling him along like the GC contenders have. Unbelievable!