First impressive Jaylon video

Scotman

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So here's a couple of questions...and this may not be the thread for it.

Let's say that Jaylon's nerve never completely refires....but fires some. You could argue that it is (well, we can obviously argue about anything). Could someone make an AFO that operates bionically based on the signals it is getting? If not now, in the future? And at what point will the NFL limit such bionic devices?

Oh my...look at the questions I just typed. It's only February. This off season is going to kill me.
 

Scotman

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There is another thread where people predict his level of play next year. Most people think he will be a very good starter. Not quite HoF but yes people do expect him to play very well considering he was expected to be a blue chipper.

You evidently missed where I said, "Book it." Generational player. Once someone says "book it," the conversation should be closed. It's like a rule or something. :)
 

Scotman

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I'm not too sure.

If what I've read is accurate, he can push off with the foot. He cannot flatten his foot back. He would scuff the ground with his toes because of the drop foot.

The brace helps spring his foot back into place after pushing off. I think what we are interpreting as Smith lifting his foot into place is actually the brace doing its job.

But I would gladly be wrong.

This is the way that I understood it as well. Of course, my niece's operates this way. She can push down...and then it just stays there. It's been 12 years since her brain injury and it's had gradual improvement the whole time. And her whole reason for the foot drop is different. But seeing her's could be the reason I read his as the same.
 

Scotman

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Considering the Cowboys budget, it stands to reason that a custom brace could have a significant range of motion and still pull the foot back up.

My thoughts exactly. We have no idea what type of brace he could or would be wearing. My niece's AFO runs about $500-$1000. Absolutely chump change compared to what the Cowboys would spend to help Jaylon be effective if he needed it and it were possible.
 

xwalker

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Dorsiflexion is at the ankle not the toes at least in this context of speaking of drop foot. The foot is dorsiflexed up and plantar flexed downward from a position of function. You can also evert and invert the foot at the ankle to a much lesser degree but that is not relevant here; just mentioning it.
Yes, Toe(s) up or down is just a description of the direction of the flexion.

The ankle is obviously the hinge point of the foot.
 

jobberone

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Yes, Toe(s) up or down is just a description of the direction of the flexion.

The ankle is obviously the hinge point of the foot.

The toes being dorsiflexed is basically irrelevant. We're talking dorsiflexion of the foot in drop foot. You can dorsiflex the toes in plantar flexion. With foot drop you are speaking of inability to dorsiflex the foot and the position of the toes are controlled by other muscles and irrelevant. They really aren't in the conversation.
 

waldoputty

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So here's a couple of questions...and this may not be the thread for it.

Let's say that Jaylon's nerve never completely refires....but fires some. You could argue that it is (well, we can obviously argue about anything). Could someone make an AFO that operates bionically based on the signals it is getting? If not now, in the future? And at what point will the NFL limit such bionic devices?

Oh my...look at the questions I just typed. It's only February. This off season is going to kill me.


i remember a berkeley spinoff working of mecha-suits for the DoD like the japanese anime tv shows.
there were also DoD projects working on various brain/cns interfaces...
even a DoD program working on bionic insects
 
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waldoputty

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This is the way that I understood it as well. Of course, my niece's operates this way. She can push down...and then it just stays there. It's been 12 years since her brain injury and it's had gradual improvement the whole time. And her whole reason for the foot drop is different. But seeing her's could be the reason I read his as the same.

you are saying it stays down after being pushed down - that is not what is happening?
furthermore, if you attribute it to an extremely quick spring that allows the foot to be snapped right back in place, it does not sound very safe for normal walking - it could spring back as you are walking.
for safety, there should some delay, and that would not keep up with the rapid jumping needed to jump those closely-spaced barriers in the video...
 

waldoputty

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This is the way that I understood it as well. Of course, my niece's operates this way. She can push down...and then it just stays there. It's been 12 years since her brain injury and it's had gradual improvement the whole time. And her whole reason for the foot drop is different. But seeing her's could be the reason I read his as the same.

furthermore on the previous message, i am not aware of a good simple reliable mechanical means for engineering a delay in the spring back.
so to make it a safe return, it would most likely mean a slower return
 

xwalker

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The toes being dorsiflexed is basically irrelevant. We're talking dorsiflexion of the foot in drop foot. You can dorsiflex the toes in plantar flexion. With foot drop you are speaking of inability to dorsiflex the foot and the position of the toes are controlled by other muscles and irrelevant. They really aren't in the conversation.


I'm only using toe(s) as a reference point to the part of the foot where the toe(s) attach. I'm not referring to any actual movement of the toe(s). If you describe the foot in simple terms, one end is the "toe" end and one end is the "heal" end.

I guess I should have said:
The foot rotates with the ankle as the pivot point. Dorsiflexion is the rotation in the direction such that the end of the foot where the toe(s) attach moves up relative to the ground. Plantar Flexion is rotation at the same pivot point but in the direction such that the end of the foot where the toe(s) attach moves down relative to the ground.

In the attached image the red dot is the pivot point for both Dorsiflexion and Plantar Flexion.
dorsiflexionplantar1320638565930.jpg
 
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