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Some slow motion footage from a training session posted on Nov 11th 2015 which I have further slowed down and from which I have extracted a series of still images depicting some important features of the 1st phase of pole support. https://youtu.be/dy0EQ_dwfuI I interpret this brief video as reinforc...

Renaud Lavillenie's 6.02m clearance ISTAF Berlin Discussion Video 3. https://youtu.be/iPf2J9JXGjk This successful vault might be considered an exemplar of the technique Renaud Lavillenie aspired to replicate throughout the 2015 season. This is merely my opinion having reviewed video recordings sampl...

There is no push with the left hand, it is a BENT arm PRESS support UP! Not a push--block or clutch! Thanks for your response. We agree there is no active upwardly directed push being exerted by Renaud Lavillenie's left hand after take-off has occurred in the pole bending phase of pole support. Als...

My response to Grandevaulter and Kirk. Renaud does not show a Free Take-off. He is close. But because of (a) backward lean (b) round arm plant action (c) compensatory stepping across the midline with the take-off leg towards his right side on the runway (d) completing the plant action top hand exten...

I will try to discover if there is a rationale for the ankle dorsiflexion idea? If anyone else can provide it I would love to find out? It does not make much sense from either an anatomical or mechanical perspective to me. When Altius was here he talked to us about flexing the foot at the end of th...

Thank you Cat lady. I will consult my copy of the Old Testament Pole Vault Bible 1980 (9th edition). I will try to discover if there is a rationale for the ankle dorsiflexion idea? If anyone else can provide it I would love to find out? It does not make much sense from either an anatomical or mechan...

I'm with Tim McMichael. Inversion is an overused expression. Without writing a book about how to pole vault, here are three suggestions: Try to touch your left shin to the pole under your top hand. Aggressively extend your hips upward, flexing your feet, as opposed to pointing your toes. Using both...

Thanks for your critique points re the video. I agree with your picky points with regard to the video production and presentation. The music is a generic piece automatically generated by the Nero software used to compile the video clips ,all of which were edited from the original sources referenced ...

I have prepared a video to provide a relatively objective base from which to discuss the state of development of Renaud Lavillenie’s Pole Vault Technique during the 2015 Indoor and Outdoor Pole Vault competition season. The technique discussion video has been allocated an identification frame number...

The fundamental premise amongst the many that have been made by WIll is not supported by the relatively recent evidence in Lavillenie's real world vaulting performances. The video below shows that he does not keep his COM (Vaulter's Centre of Mass) down and back in the pole support phases of the vau...

Grandevaulter a funny, fatal riposte to Will. :D I appreciate the sardonic humour and the point you make so well. The instantaneous and the average angular velocity about the hand axis of Stickman's feet and hips will be the same in angular displacement magnitude ! The tangential or linear velocity ...

Will, If you are a trained scientist, your professional accomplishment in communicating in the written form about science and physics in particular does you no credit. You may believe that you have communicated your understanding so that readers in the forum completely understand your points of view...