PCM season planner and fitness

ello there..
Can anyone tell me what the bars in game and in season planner indicates?
For instance contador is using "TOUR_DE_FRANCE_04" having high red bars in the end of tour de france, and a low green one ultimo august.
I can adjust these in PCM Season Planner, but what am I adjust? His training level or ?
How is it supposed to look? Should they be high or low at important events?
Can anyone tell me what the bars in game and in season planner indicates?
For instance contador is using "TOUR_DE_FRANCE_04" having high red bars in the end of tour de france, and a low green one ultimo august.
I can adjust these in PCM Season Planner, but what am I adjust? His training level or ?
How is it supposed to look? Should they be high or low at important events?