It consists of 4 running bouts at 10–13 km·h-1 (0-160 m) and another 7 runs at 13.5–14 km·h-1 (160-440 m), where after it continues with stepwise 0.5 km·h-1 speed increments after every 8 running bouts (i.e. after760,1080,1400,1720 m, etc.) until exhaustion .