Base 3 starts this week. This probably doesn't mean anything to anyone other than myself, but I am writing it down so that I will remember it. The intensity of training increases a lot during this period. My focus will be on hill climbing in Zone 4, right at LT. I did some of this during my ride yesterday. It is only slightly painful and I can sustain a hill climb right at LT for quite a while. The other focus of this period IS painful; it's muscular endurance. On my trainer indoors, I will be moving the target HR of my intervals up (currently they are at LT - 10) to LT -3. Now that hurts. I have stopped watching TV during indoor workouts because the pain is too much to focus on anything else. It's iPod time.