Hi! Here is a resumé of the insights and adaptations, I was able to do during my Olympic season, thanks to the Spiromagic device. The device itself has equal dimensions to an average mobilephone, so I could easily bring it with me on my travels, and mesure my lungs on a daily basis.
For further information on the Spiromagic device, Visit: http://www.spiromagic.dk/index.html
I have been using/testing with the device since october 2017. The results should be divided into short term and long term variations.
If we start out with the variations throughout the entire season:
During the first weeks i saw rapid general improvements, which I believe to be due to simple adaptation to the device and improved blowing technique. Afterwards, my output slowly improved from 104-107% to 106-109% during november and december. Throughout januar (my very intense training periode, aiming to peak at the Olympics in end february) it raised at a quicker pace. ending at stable numbers 112-113 during my time at the Olympics. I managed to maintain these numbers >110 until the end of my season. (mid march). Afterwards I went on a 3-4 week “break” only training easy session 3-4 times a week. During these weeks, my numbers gradually fell from 112 to 107. Which is my current level.
The FEV1 went from 5,6-5,8 in my pre-season to 6-6,1 in my peak period.
Regarding short terms variations:
It is very clear that my lungs perform better in the afternoon compared to morning or noon. Even after hard morning session, I reach higher outputs in the evening. This insight has driven us to put most VO2 Max training sessions in the afternoon, whereas we have previously been cautious, as we feared that I would not have the desired training quality due to fatigue.
After intercontinental flights, it usually take 3-4 days, before my numbers are back to normal. Usually it is about 3-4% lower at arrival, improving by one percent per day. Whether this is due to the long fligth, the time difference or the fact that most places have been in high altitude, remains to be explored.
This has been helpful in determining at what point a could continue with my usual training load after travels.
After restdays, I tend to underperform, as well as I tend to have 1-2 extra percents right after training session, unless they have been really stressful for the lungs. In these cases, I perform at my average.