Eric,
It has been so many years since I read it. I just took for granted this was
known that I forgot the reference. I am sure that one of our colleagues
that is more organized than me can find it in a second.
If you remember (and I am eliminating frontal plane motion for simplicity),
the first metatarsal plantarflexes and abducts (or dorsiflexes and
adducts), the fifth metatarsal plantarflexes and adducts (or dorsiflexes
and abducts). The third is just about pure plantarflexion. The second is
between the first and third. The fourth is between the third and fifth. So
if you put it together, the metatarsals will plantarflex and come together
(or dorsiflex and splay).
Sincerely,
Stanley
At 08:06 AM 11/28/04 -0800, you wrote:
>Hi all,
>
>Stanley wrote:
>
>
>>The motion occurs at Lis Franc's joint, The metatarsal will plantarflex
>>with motion toward the 3rd metatarsal (and dorsiflexion with motion away
>>from the third metatarsal). So plantarflexion will bring the metatarsals
>>together.
>
>Do you have a site for that?
>
>
>Cheers,
>
>Eric Fuller
>
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