Man clears 6.17 meters in pole vault -- 1cm higher than the WR -- from a skateboard

Impressive.

BTW, Duplantis is capable of that. Without Skateboard.

I believe it's a motorized skateboard.

you're correct that he's probably traveling at a faster speed than he can run, but he also benefits from a higher takeoff angle from jumping off of a platform that is already close to a foot in the air.

Still, a very impressive stunt. I think Lavillenie's 540 with a backflip from a week or two ago tops this though.

the pole is a spring that stores the energy inputted by flexing and then returns some of that energy to propel upward, if you go at it faster and with more mass, you'll get more return. the center of gravity of your approach makes a difference too so yes the height of the skateboard helps.

Also look at his feet right before the jump. I'm not a vaulter and don't know the vocabulary, but he adjusts to get into a to a position with both feet together, as opposed to the normal run up where your taking strides.

That looks like a fun event.

There is a video of Duplantis in his backyard pole vaulting at night off a hover board. I think it was youtube.

It seems that he jumps with both feet which would also help (and be illegal in usual pole vault or hj). Nevertheless a cool stunt.

Jonathan Gault wrote:

Obviously the skateboard must help.

Genius...

Someone link to that vid of a guy long jumping off a skateboard over a row of kegs and landing onto another skateboard

Blew your mind?

Turn it up a bit, and the LJ world record would go, too. Come on, Wejo.

Whipp wrote:

Also look at his feet right before the jump. I'm not a vaulter and don't know the vocabulary, but he adjusts to get into a to a position with both feet together, as opposed to the normal run up where your taking strides.

Yes. And I will add...

Any time I hear a coach (and it is very often) cue a vaulter on "KNEE DRIVE", I immediately know who does not understand the physics of the event.

This video is an excellent demonstration that the "knee drive" is complete garbage. It is simply an extension of the running cycle, and once the takeoff leg is no longer in contact with the ground, the lead knee no longer matters... it can drop.

It is about horizontal momentum, pole plant angle, and understanding how to move a pole (bending or straight) to vertical.

I understand physics wrote:

Whipp wrote:

Also look at his feet right before the jump. I'm not a vaulter and don't know the vocabulary, but he adjusts to get into a to a position with both feet together, as opposed to the normal run up where your taking strides.

Yes. And I will add...

Any time I hear a coach (and it is very often) cue a vaulter on "KNEE DRIVE", I immediately know who does not understand the physics of the event.

This video is an excellent demonstration that the "knee drive" is complete garbage. It is simply an extension of the running cycle, and once the takeoff leg is no longer in contact with the ground, the lead knee no longer matters... it can drop.

It is about horizontal momentum, pole plant angle, and understanding how to move a pole (bending or straight) to vertical.

For jumpers who like to be out and jump off the ground, the knee drive helps in the vertical component of the takeoff. It counteracts the jump leg and allows a tiny bit more amortization time. LJ and HJ this is more obviously beneficial. Once youve left the ground this no longer matters aside from cueing a big knee drive ensures you will properly bring that extra energy, like followthrough in a baseball bat swing.

Where the double leg swing helps is in theory a slight increase in efficiency of the plant, since it both sets up a stronger swing and helps soften the pole a bit at the start of the vault.

Its a tradeoff to an extent I would suggest depends on the individual athlete. This is in one with the wide range of knee drive at takeoff from the men who have gone over 6 meters. There are double leg swingers up to guys with massive knee drive off the ground.

Dont be too quick to judge other coaches, you were thinking too narrowly of the physics, there is an explanation of how knee drive does add to the vault.

They also may be giving cues for psychological reasons. For example, I often cue knee drive at the takeoff if I have a kid not finishing his run. I also use that cue if a kid isnt getting tall at the plant. You cant slouch and have good knee drive at the same time.

The double leg sweep is very hard to master as their center of gravity is hard to control and with most people every jump is either, Are they going to break the pole? Are they going to come straight down in the box? Will the make the pit?

Should pole vault shoes now be fitted with wheels instead of spikes?

It looks a whole lot more fun than a regular track meet....

Think about it;

The Winter Olympics sucked before they changed and started doing X Games events....

Maybe it’s time track changes too.

Seriously.

Balding Eagle wrote:

Jonathan Gault wrote:

Obviously the skateboard must help.

Genius...

No, there's no actual advantage... Just like the Pistorius controversy, and other such athletes, there's plusses and minuses, as found by CAS.... So this would totally legit, if the skateboard were a artificial limb or the like.... Only the haters and anti-transhuman progress-haters will complain..... who still go with their 2+hr "WR" for marathon, when wheelchairers do it MUCH faster.....!

I think in the jumping events, one of the most important aspects of the approach is how you develop and maintain a rhythm that ensures an optimal takeoff...

Aside from the fact that he has both feet planted on the skateboard, and provided he's comfortable traveling in a straight line on a skateboard, riding up to the mat removes any need for the development of rhythm, and allows him to focus simply on his hold and planting the pole...

Also, the kinematics of the pole vault are simple enough - it's a total conversion from kinetic to potential energy and thus: (1/2)M(V^2) = Mg(Δh). Horizontal velocity counts for everything, and skateboards can move pretty quickly. You simply can't vault twenty feet without a ton of speed. So that was probably the deciding factor. I like what someone said about him taking off from a bit higher off the ground than usual, but his flat PR is ~5.40 and I don't think that alone gives him almost a meter of improvement.

I was at the Paris Diamond League meet a few weeks ago and this guy was vaulting between the regional/masters events that preceded the international meet, like a show to keep the crowd entertained. He is very impressive!

When talking about the physics, also note that he puts down a mat on the runway so that the skateboard stops suddenly. I wonder if this also helps to propel him into the air.

Sdfsdfsdfsdfsdfsdf wrote:

I understand physics wrote:

Yes. And I will add...

Any time I hear a coach (and it is very often) cue a vaulter on "KNEE DRIVE", I immediately know who does not understand the physics of the event.

This video is an excellent demonstration that the "knee drive" is complete garbage. It is simply an extension of the running cycle, and once the takeoff leg is no longer in contact with the ground, the lead knee no longer matters... it can drop.

It is about horizontal momentum, pole plant angle, and understanding how to move a pole (bending or straight) to vertical.

For jumpers who like to be out and jump off the ground, the knee drive helps in the vertical component of the takeoff. It counteracts the jump leg and allows a tiny bit more amortizationtime.

Ok you've really lost me there. What do you think this word means? A google search just brings up lots of accounting links.