One named bosco made these. They are in .wmv format.
Powell’s 20m-50m is incredible! It looked like he cut the engines at around 60m. Crazy! I hope he stays focused on his training and doesn’t predict any times or a world record (although I think he is good for it this year). For a guy his size his start looked good.
Thor those videos are fantastic. I am very grateful to you for posting them. Thank you
Awesome!! Thanks for posting the vids!
Was anyone else running there?
That was so funny! For Asafa, I mean…
I have posted some more videos now.
Mens 200 added. It is nice to see the “real” Bolt.
Thanks Thor, awesome! Powell always looks so effortless running, this guy will be the first man under 9.70
First time I ever see Bolt run, amazing. He just glides those last 100m. like no one else. He could have run 19.9x this time out had he not shut down the last 20m.
Clearly the future of the 100 and 200 are Jamaican.
Four words for you Thor, IN-CRE-DI-BLE…
Your are indeed the man!!! 
it did look effortless! but he ran a legit 100m. i have to agree that hes on track to break the world record
haha yeah right he shut it down at 60 herb.
Thanks Thor, very kind of you!
I’ve done a rough analysis with dartfish software:
DISTANCE : Intermediate time, section time, Stride Length, Stride Frequency, N° of Steps
000-030M 3.84 - 3.84 - 1.83 - 4.31 - 16.4
030-060M 6.41 - 2.57 - 2.41 - 4.85 - 28.9
060-080M 8.10 - 1.69 - 2.49 - 4.76 - 37.0
080-100M 9.84 - 1.74 - 2.57 - 4.48 - 44.7
I doubt very much he was going to break the WR as he declared after the race.
Chronophotography of him at around 75m mark
Good job pierrejean!
I agree with you on the WR statement…
Also what I find interesting is that in pictures 1&2, and 6&7, he seems to be making definite heel contact with the ground, while running that fast. As oppposed to Ben that made very little heel contact.
Thoughts?
Agree with Scarface; also, although all movement is in front of him (e.g., knee lift), his pelvis seems to stay behind with a “broken line” between upper/lower body -it shows in real time and more clearly here.
And his extension towards the end of the photo sequence is not the best; he could take advantage of a good extension with his pelvis moving upwards the “whole” time -I understand that this is when the race was over, of course…
Am I right on any of these points?
PJ, is the situation about the same earlier on in the race?
Thanks!
And to Thor, of course!
mechanically he not great.his extension to the back lacks but the end result is .84.
also don’t forget that these photos are when he fully accelerated and at maintanence TE speed.pesonally i think that this guy will smash the WR if things go well as they are.at thre moment he in a league of his own
He’s pretty good. You’re not going to run 9.84 with sub-par mechanics.
I disagree on the extension comment. Look at video of Mo Greene, Tim Montgomery and Ben Johnson (all sub-9.80 runners). You will see limited backside mechanics (particularly when they are still in contact with the track) for all of them. When the foot leaves the ground, the leg will extend slightly prior to leg recovery, but they are not “pushing” out back. The superior (lower) ground contact times for these athletes tell you that they are not trying to extend at the point of max velocity.
This does not mean that they have short stride lengths - in fact they are covering lots of ground for each stride, but due to the fact that they are putting lots of energy into the track - vertically, maintaining their horizontal velocity. Research has shown that the greatest forces acting at this point in the race are vertical, not horizontal.
Also, be careful when analyzing video at 30 fps or less. There are “frames missing” and we may not be seeing his full extension in the frames shown.
I have done the work again, with the comparaison between 65-70m and 75-80m.
In the 75-80m sequence, Asafa comes from a relaxing moment and tries to puts a last frequency boost before shutting down.This can be shown back lack of full extension and low pelvis. The support knee flexes less at stance when at full effort (65-70m section). Also look at the difference in swing leg’s knee angle, at full speed, the angle is smaller so that the swing is quicker. all these examples are typical for the difference between full speed and easy sprinting (difference between finals and heats).
Later in the year when his race scheme will be completed, he will be able to run his 100m like it was a single movement. He will have to do it with strong oponents too.
The quality if the picture is so poor that it’s impossible to say if there is heel contact or not, however, from his other races it’s unlikely.
Anyway, this didn’t costed him a lot of time as if he had give full effort until the finish line, he wouldn’t have been able to keep relax and produce same speed. We have to take in account the wind +1.8 which provided him a comfortable help even while he was “relaxing”.
That’s excellent, PJ thanks!
Hope he can stay focused all the way through; it will be interesting! He should improve on these details though for tougher races, I believe.
+1.8 huh? It makes a difference vs. time, but not much I suppose vs. the others!
X-man, I don’t argue with his times (LOL! 
), as I wouldn’t argue with V. Campbell’s right arm with her performances (see 200 m), but with this kind of running why not targeting at <.84? That’s what I meant and for those races still to come…
I disagree on the extension comment. Look at video of Mo Greene, Tim Montgomery and Ben Johnson (all sub-9.80 runners). You will see limited backside mechanics (particularly when they are still in contact with the track) for all of them. When the foot leaves the ground, the leg will extend slightly prior to leg recovery, but they are not “pushing” out back. The superior (lower) ground contact times for these athletes tell you that they are not trying to extend at the point of max velocity.
#2 correct and right about what you say in regards to pushing vertically as what is always been coached.extension is a pure natural movement in sprinting but is restricted by imbalances,weakness’ or simply trying to lift the knees/darting.
i have included some pictures of the worlds greatest sprinters to demonstrate extension on contact and thereafter.
http://i.a.cnn.net/si/2004/more/12/08/bc.run.steroids.johnson.ap/p1.ben.johnson.si.jpg
sorry about the headlines rupert but this picture illustrates great extension of the best.as you can see ben is using the ground with max but with minimal GC.
as you can see also his hip level is great thus leading to great lift to the front and back
http://www.atlasf1.com/2000/dec13/barnes4.jpg
this picture of ben shows great extension.just compare the difference between ben and powell.the difference is huge.powel seems to be darting and ben looks more complete mechanically as a sprinter.bens extension is hard to see from the untrained eye until you do a slo-mo which clears all doubt up.
Ben is off the ground (well off the ground in both photos). Not an equal comparison. I believe we are missing frames on Powell. The photos of Powell are also taken at a much different angle.
Assuming you are correct, what are your recommendations if you were Powell’s coach?
heres a picture of MG in early acceleration during a last leg of a relay,extension great
http://www.advantageathletics.com/sprints/Maurice_Greene/08.jpg
heres a picture of mo and floyd heard.in this picture mo has used the ground and is starting the stride cycle but to his right look at floyd.he is getting great full extension
http://www.dagbladet.no/sport/2000/07/15/greene.jpg
heres tim,althought his SL looks choppy hes still getting full extension
http://estaticos.elmundo.es/elmundodeporte/imagenes/2004/10/08/1097254175_0.jpg