Sprint perhaps uh 100 200 300 400 meters and then jog back traditionally it was not quite a Sprint the duration would be typical 60 to 90 second uh the intensity is such that you get to top off at 85 90% of your heart rate Max something like that and then you jog until your heart rate goes goes to about 60 70% so that's roughly about the same probably and uh that to look things up it's like German interval training