Little connection beyond the obvious.
For the males, the HS or College height makes a big difference. Contrary to the “Devers Effect” as women’s hurdles have needed to go up for years. They should be at least 36″ if not NCAA IAAF 39″ and HS 36’s
Women can vault, and want to change the Hep to Dec but hurdle race might as well be running over painted lines on the track cause it aint hurdling.
Guys have to raise their C of M right away to set up the first hurdle, unlike in the sprint. Perhaps the greatest detriment to a guy hurdler running them similar to the 100 is analgous to why the women in fact can.
It’s the deceleration that comes from having to ground each step (pre-hurdle) in front of the C of M. This because otherwise the C of M wouldnt elevate enough to clear the barrier.
Start to first hurdle being so different than a flat out 100m because of the need to set up the first hurdle.
Lower heel recoveries to avoid overstriding between hurdles also results in greater frequency.
Arm action needed to counteract trail leg, etc… etc…
In a pure view, both use spikes, blocks, a starter and are run in a straight line. After that, not so close…