Every year, Team Ingebrigtsen measures so-called thresholds on the three brothers in the family. And especially Jacob has amazed the experts with his extreme aerobic endurance.
Threshold is the speed an elite athlete manage run on average in an hour, without producing more lactic acid in the muscles than the body constantly manages to "wash" away. The higher the threshold, the longer it takes before you get stiff when you race.
After the test two years ago, Jacob was open about how high his threshold was.
- 19.3 km / h I measured in the threshold. By comparison, Henrik measured 18.1, the then 15-year-old Jakob told TV 2.
Now he would rather not talk about how high the last measurement is.
- Is it over 20 km / h now?
- Yes, says Jakob Ingebrigtsen shortly.
- How much? Is that secret?
- Well, no, but it's not necessary to talk about numbers as long as you run fast.
In the NRK documentary about Team Ingebrigtsen, the man who has tested Jakob in all years, Leif Inge Tjelta, says the following about the last test.
- This is in line with the best in the world. He has a good working economy. It looks like he jogs when he runs.
After the TV 2 has understood, the threshold speed to Ingebrigtsen is between 21 and 22 km / h. In theory, Jakob Ingebrigtsen can run a half marathon in less than one hour, and put Norwegian record - without getting lactic acid in the legs.
The article in english:
Google translate is so-so, if theres anything you don't understand, ask and I'll translate.