40 time vs. meters per second.

[vault3rb0y]

A lot of stress gets put on an athletes 40 yard sprint, 30 meter sprint, and overall top speed in meters per second. My question is, how important to a pole vaulter is a 40 yard dash or 30 meter dash compared to ones overall meters/ second speed. What if one person could run the 40 yard dash in 4.3 but only got up to 9 m/sec, compared to someone who has a terrible 40 time, but gets up to 11 m/sec at top speed? It seems to me, acceleration shows athletic ability, but might not necessarily be as useful as top speed for a pole vaulter. any thoughts?

[rainbowgirl28]

It seems to me, acceleration shows athletic ability, but might not necessarily be as useful as top speed for a pole vaulter. any thoughts?

If you can't get up to speed over 30 or 40 meters on the track, how are you going to get it done on the runway?

[nitro]

It seems to me, acceleration shows athletic ability, but might not necessarily be as useful as top speed for a pole vaulter. any thoughts?

If you can't get up to speed over 30 or 40 meters on the track, how are you going to get it done on the runway?

exactly it might be nice to be fast but if you cant do it with a pole in your hand its worthless

[TreyDECA]

It seems to me, acceleration shows athletic ability, but might not necessarily be as useful as top speed for a pole vaulter. any thoughts?

If you can't get up to speed over 30 or 40 meters on the track, how are you going to get it done on the runway?

exactly it might be nice to be fast but if you cant do it with a pole in your hand its worthless

touche'

[Tim McMichael]

40 yard dash times are a good general measurement of speed. The most exact measure, however, is meters per second at takeoff along with a comparison of velocity in the five meters before takeoff with the five meters before that. The most effective run shows a slight acceleration over these ten meters. You can have a high velocity leading in to your plant, but if the previous five meters of your run were faster, it means that something is terribly wrong. It usually means that your strides are lengthening and your center of gravity is sinking when the exact opposite should be happening. There are all kinds of faults that can cause this kind of deceleration, and almost all of them are fatal to good jumping. If it is bad enough, speed can be negated to the point where a slower athlete who is accelerating can jump higher than a faster athlete who is decelerating.

This is difficult to measure, but there is a way to use a video camera to do it. The amount of time between frames recorded on a video camera is a constant. This means that if you set markers at takeoff, five meters, and ten meters, and you set your camera up a good way away and centered on the five meter mark, you can use frame advance to count the number of frames between markers and calculate velocity. This is difficult because the markers and camera positions have to be exact, and if any of these variables are even slightly off, it throws the whole thing off. I can't remember the time between frames or the formula for the calculation though. (Math has never been my strong point.) Does anybody out there know?

[2-15-46]

THE OLD THEORY FOR SPEED WAS IT TOOK A HUMAN AT LEAST 120 FEET TO REACH TOP SPEED.............120 FEET = 40 YARDS!!!!!!!

[vault3rb0y]

For elite 100m dash runners, i would estimate it takes them at least 50 meters to reach top speed. The difference is, we arent running 11+ meters a second. I dont reach my top speed in the 40 yard dash, but if you give me 110 feet on a 9 step with a pole in my hands, and im pretty close, because im not as fast when i have a pole in my hands.

[smokinvaulter1]

we used to run 40 with out poles then run them with poles.
I only drop a 10th on average. ex 4.2 with out 4.3 with, we also trained alot with poles in your hands hills, rythm runs .etc. speed with a pole and converting it at take off is what count' Oh yeah got love slide box.

[KYLE ELLIS]

we used to run 40 with out poles then run them with poles.
I only drop a 10th on average. ex 4.2 with out 4.3 with, we also trained alot with poles in your hands hills, rythm runs .etc. speed with a pole and converting it at take off is what count' Oh yeah got love slide box.

i call bs on a 4.3 40yard with pole in your hands jeremy, lol. i know your fast as hell but thats just retarded. no disrespect intended. and as far as the question above why dont you do a flying 15meter, then do it with a pole to see how effeciant you are with a pole in your hands.

[vault3rb0y]

i just ran a 40 open today in 4.48, without a pole. haha i would hate to try it with a pole :-P.

[lonestar]

40 yard dash times are a good general measurement of speed. The most exact measure, however, is meters per second at takeoff along with a comparison of velocity in the five meters before takeoff with the five meters before that. The most effective run shows a slight acceleration over these ten meters. You can have a high velocity leading in to your plant, but if the previous five meters of your run were faster, it means that something is terribly wrong. It usually means that your strides are lengthening and your center of gravity is sinking when the exact opposite should be happening. There are all kinds of faults that can cause this kind of deceleration, and almost all of them are fatal to good jumping. If it is bad enough, speed can be negated to the point where a slower athlete who is accelerating can jump higher than a faster athlete who is decelerating.

This is difficult to measure, but there is a way to use a video camera to do it. The amount of time between frames recorded on a video camera is a constant. This means that if you set markers at takeoff, five meters, and ten meters, and you set your camera up a good way away and centered on the five meter mark, you can use frame advance to count the number of frames between markers and calculate velocity. This is difficult because the markers and camera positions have to be exact, and if any of these variables are even slightly off, it throws the whole thing off. I can't remember the time between frames or the formula for the calculation though. (Math has never been my strong point.) Does anybody out there know?

Tim,

Peter McGinnis came up with that formula and he was my college coach. I have a copy of "Biomechanics on a Budget" in a file in my office somewhere. I'll dig it up and try to type the formulas in, that is unless old "PVPHD" himself beats me to it!

[lonestar]

we used to run 40 with out poles then run them with poles.
I only drop a 10th on average. ex 4.2 with out 4.3 with, we also trained alot with poles in your hands hills, rythm runs .etc. speed with a pole and converting it at take off is what count' Oh yeah got love slide box.

i call bs on a 4.3 40yard with pole in your hands jeremy, lol. i know your fast as hell but thats just retarded. no disrespect intended. and as far as the question above why dont you do a flying 15meter, then do it with a pole to see how effeciant you are with a pole in your hands.

Kyle,

I agree with your test. We do a flying 20m without a pole, then a flying 20m with a pole. I've found that by doing any distance beyond that the person gets too out of control with a pole and can't accurately maintain speed through the zone.