No, his acceleration was the big factor. Acceleration is the rate of change in speed. If you are accelerating you are not maintaining your speed you are still increasing it. Maintenance does not come into it until you reach your top speed then acceleration is zero and speed is constant. Mo did not reach top speed till the 80-90m segment he then decelerated for 1/10th of a sec.
I’m a bit confused now. I understand the concept of accelaration etc, but I though Charlie said he wasn’t accelerating that far into the race at max?? If he’s accelerating to 80m, then I see how that is a massive advantage.
Can this reflect his training, something genetic, or a combination? What’s your view on this? Thanks!
I would guess it’s a combination of training and genetics. Unless genetics gives you the potential to maybe run at a given speed, and then the training allows you to develop the ‘strength’ to maintain it. That’s purely speculation, which if it would be the case, would put training as the slightly more dominant factor concerning this issue.
He accelerated for a duration of 8.68 secs vs 6.44 secs for the average. Point of max speed for Mo was at 86.84m. Point of max speed for the group (average) was 59.79m. Max speed was 11.73m/s vs 11.5m/s for the average. Duration of deceleration for Mo was 0.99secs vs 3.38 secs for the group average.
Can you provide proof ACCELERATED to that point (not necessarily maintained)?
Ok, because I suppose he could have theoretically hit the speed earlier but maintained it consistently for a couple of segments before finally decelerating immediately after that point. I don’t know, I haven’t seen the data.
Which race are you refering to?
hi martin, I did not think anybody could accelarate for 80m
The body can only accelerate so long and I have read you can only hold that speed for so long.
If you look at his times to 60 and his overall top speed, the only way he could maintain accel throughout is to go sub-max. Chech Pierre-Jean’s race descriptions and 10m splits for mo and others
Yes I think you are correct, that is what I thought initially when I read the info. I can’t see how it could be any other way.
So where are the splits of him accelerating through 80+m?
I think it was saville 99 final.
I don’t have them…
He hit his top speed at 60, just like everybody else. I think it may have appeared like that because Bruny was tigtening up. Here are the splits for Mo in that race:
Maurice Greene 0.132
1.86 2.89 3.81 4.69 5.55 6.39 7.24 8.09 8.94 9.80
1.86 1.03 0.92 0.88 0.86 0.84 0.85 0.85 0.85 0.86
1.73 2.76 3.67 4.56 5.42 6.27 7.11 7.96 8.81 9.67
maybe you referring to his fastest splits ever recorded which when added have a Mo Greene perfect race decelerating one hundredth from .82(50-60interval) to .83 (60-70interval) and .83(70-80inteval)
these are Mo’s best spits provided from X-King:
0-10 1.69(minus RT)
10-20 1.00
20-30 0.89
30-40 0.87(only interval split that’s not fastest or tied for fastest in history)
40-50 0.84
50-60 0.82(Ben may have a faster .81 split)
60-70 0.83
70-80 0.83
80-90 0.85
90-100 0.85
Mo Greene perfect race with RT of 0.1 equals 9.57s
for these elites to be able to maintain 0.84 for several segments such as 3 or 4 i’m guessing they would had to have hit a .82 or .81 for at least one segment in a prior run or race to feel out the ceiling so to speak, before trying to maintain .84 consecutively.
If Asafa maintained .84 for 4 segments in Athens GP he would of ran 9.75 but it was maintenance from 60 of .84, .84, .85, .85.
Maybe Asafa just has to hit a .82 split as Mo did, to hit the ceiling or even a .81 split, which Ben hit in Zurich 85, in order to maintain .84 for 4 segments.
Not to rock the boat too much on this, but is there any official data of anyone running faster than .83? The official splits done at championships are generally done at 100hz or better, whilst TV and most video recorders are only 25hz. This lower frame rate increases the margin of error to .04s - a huge amount of time when you’re talking about the differences between a .81 and .85.
Such things as “official splits” doesn’t exist. Just biomechanical teams allowed to work in the stadium for a given competition, then the accuracy of the results is left to speculation (it has been discussed in the archives). Now, the fastest segment ever found by these teams in Olympics or World Champs is 0.83, with wind assistance it is 0.80 by Carl Lewis in Tokyo. BUT Tokyo analysis were done at 60hz and according to official report results accuracy was 0.02.
In Mo’s second best ever race his best 2 consecutive segments are 0.84-0.85, i doubt in slower race he hit 0.82.
Last year in Qatar 0.81 was recorded for Gatlin, but i don’t trust the analysis the 10m segements numbers make no sense, especially the first 10, 20, 30m and the last 10m. The 60m was reliable though as these times were given to us just after each race, and later corrrected by the 0.01 delay, though i don’t know what was the procedure used for these 60m splits. I’ve found the same number with my 50hz recordings in the stadium.
Any idea of the Hardness of the track at seoul? i heard the hardness of the track at Tokeo with carl lewis was like a 13!! pretty hard. I have heard the seoul track was a fairly soft track?