Originally Posted by
clausen
It is pointless to repeat the same interval week after week. Your body adapts so you need to increase intensity and time in the proper order to see improvements. During my year long plan you only perform the identical interval twice and it's in the same week. Next week the interval is longer or you change to higher intensity with shorter time.
Well, if you're doing a % of ftp the intensity would go up as your ftp improves. 85% one week might be 250 but two weeks later could be 255, etc.