The YELLOW line indicates the inferior athlete of the bunch, doing the same level of work as the others, but at a much higher relative intensity. On the other hand, the RED line shows the leader of this group, his internal systems (heart, lungs, blood, muscles, ligaments, etc.) interrelate during exercise more efficiently than the rest.
V200 and Racing Performance
V200 is the speed achieved with a heart rate of 200bpm, or roughly 85% intensity. This number can be obtained, as seen by the above graph, with submaximal exercise intensities between 50-70% in the yearling.
V200 has shown to be remarkably consistent around the world:
6 months = 8.51 to 11.93mph
12 months = 9.94 to 13.24mph
18 months = 11.93 to 14.91mph
How do your yearlings grade out? Who are the future raceday performers?