Dear Coach Eric,I've completed one year of TCI (phase 1+2) and your 5k Training Plan. Everything was good.Yesterday I had a spiroergometry and lactate testing, it turned out I had not improved in my lower training zones, seemingly due to the fact that my HR zones according to 20min-test were too high and I therefore trained in too high zones most of the time last year.(HR zones 1-2 were 0-150 according to 20min test, due to spiroergometry result I should train in 122-135 80% of the week)How…See More

Hi everyone!I'm in week 12 of Phase I - so it is test week! The Cool Impossible has done so much good for me, I was not really a beginner before but in these past 12 weeks I felt I've improved in so many ways - mentally, physically, ...Now my test results are a little mysterious to me: my 1mile test was quite some improvement: from 8:30/mile to 8:02/mile, AVG HR from 169 to 174. This seems very consistent to my felt progress. But my 20min test was exactly the same (8:41/mile=3.71km) as before,…See More