Below I share some further data for the vaulter succeeding in clearing 5.70m in that same competition.
Whilst the vaulter is not clearing the arbitrarily decided criterion height of greater than 5.80m his person lifetime best is 5.90m.
The data give some insight into the realities facing elite pole vaulters and the technical model underpinning their performance.
I accept Kirks comment re the step length data reporting but point out the measurement system had an Accuracy of +/- 1millimetre. Reporting the data to +/- 1 cm precision would be adequate I agree. I worked with the raw data and readers will see the predictability of the line of best fit to the data could match the data to 4.2 %.
But back to the matter in hand, the chart demonstrates the problem for this vaulter in structuring his run up to hit the optimum foot strike position relative to the rear wall of the planting box.
These are matters of technical proficiency, laws of mechanics, body anatomy and physiologic functioning and psychological capacity in motor skill and control under pressure of competition. It has precious little to do with the personal idiosyncrasies in movement style of the performer.
The data confirm that this vaulter on this occasion and on this vault made approach and plant mistakes and still succeeded in clearing the bar. At face value it confirms the assertion that it is possible to clear quite substantial bar heights by being under.
I contend that the data actually show the errors that need correction by this particular vaulter before he takes off under conditions that OPTIMIZE his performance in the pole support and aerial phases in the vault.
Simply put if you take off wrongly the rest of the vault is spent correcting for the initial error and therefore logically must be sub-optimal.
Another take-off error correction in the real world is shown in the take-off by Tim when he first came to me for coaching. The second video shows that some progress had been made 3 months later and involved two by 2 hour vaulting sessions per week.http://youtu.be/9YK-7dZksCMhttp://youtu.be/5c6LAvjAE2M
The model that appealed most to Tim was that used by Maxim Tarassov.http://youtu.be/MHGFpk9fx7U
I worked on the fundamental premise of the Petrov-Bubka model namely that a "Free-Takeoff" was the Gold Standard to be achieved. Tim did move in this direction as the evidence shows.