The impressive training of Eliud Kipchoge, 15 x 1000

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The Kenyan athlete performs 15 series of 1.000 meters at 2.200 meters high.
Eliud Kipchoge got in the past Berlin marathon the fastest brand in history in a marathon completing the 42 kilometers in 2: 01: 39
As you can see in the video, recorded 20 days before the marathon, the marathon training group performs 15 series of 1.000 meters a 2.200 altitude meters with The recovery of 2 approximately minutes.
Training video
The rhythms of step are these:
Photo: https://www.si.com