There is a small (?) problem with my model that I have been unable to
find the answer for, and I have really hit a kind of a dead end with
it. I will upload the foot model and the leg3d files in .zip files. I
hope that someone could give it a look at some point.

I know that the model is not perfect, especially if one looks the
hips. We are really only interested in the ankle rotations and the
intersegment rotations in the foot. We have only taken measurements
from below the knee.

There are three output files (out_Meta/Mid/Ankle.csv), that I assume,
are the inter-segment rotations in these joints? I also assume that
these rotations are from the perspective of the associated moving
elements. For example, the ankle rotations should be the rotations of
the rearfoot (“Foot”-element in the model) from the perspective of
the shin. The same principle applies down the chain to forefoot
rotation from the rearfoot perspective, and to the toe (hallux)
rotation from the forefoot? Or are these from some other coordinate
system?

There is also some “leftover” instability from the segments above the
knee. Is there an easy way to get rif of these? I mean the Sacrum in
particular.

The folders the files go to are here.
C:\Program Files\AnyBody Technology\AnyBody.2.0\Repository.5
\ARep\Aalborg\Patient_2_FootApp_Wedge_Right

I have uploaded a new version of the model with the thigh and pelvis
removed, this resolves the issue of the kienmatics of the thigh and
pelvis. To run the model please replace your current folders with
the ones in the zip file.

The removal of these segments do not change the kinematics of the
foot.

About the rotations: The output in the csv files are the rotations
between the segments mentioned in the respective joints. In a
spherical joint for example it will measure the rotations between
the two mentioned reference systems in the joint using the first
mentioned one as the basis. Please notice that the sequence of these
rotations are by default Z,Y,X

Best regards
SÃ¸ren

— In anyscript@yahoogroups.com, “jari4455” <j.pallari@…> wrote:
>
>
> Hi,
>
> There is a small (?) problem with my model that I have been unable
to
> find the answer for, and I have really hit a kind of a dead end
with
> it. I will upload the foot model and the leg3d files in .zip
files. I
> hope that someone could give it a look at some point.
>
> I know that the model is not perfect, especially if one looks the
> hips. We are really only interested in the ankle rotations and the
> intersegment rotations in the foot. We have only taken
measurements
> from below the knee.
>
> There are three output files (out_Meta/Mid/Ankle.csv), that I
assume,
> are the inter-segment rotations in these joints? I also assume
that
> these rotations are from the perspective of the associated moving
> elements. For example, the ankle rotations should be the rotations
of
> the rearfoot (“Foot”-element in the model) from the perspective of
> the shin. The same principle applies down the chain to forefoot
> rotation from the rearfoot perspective, and to the toe (hallux)
> rotation from the forefoot? Or are these from some other
coordinate
> system?
>
> There is also some “leftover” instability from the segments above
the
> knee. Is there an easy way to get rif of these? I mean the Sacrum
in
> particular.
>
> The folders the files go to are here.
> C:\Program Files\AnyBody Technology\AnyBody.2.0\Repository.5
> \ARep\Aalborg\Patient_2_FootApp_Wedge_Right
>
> C:\Program Files\AnyBody Technology\AnyBody.2.0\Repository.5
> \BRep\Leeds\Leg3D
>
> If anyone could take a look, I would be very grateful.
>
> Thanks,
>
> -Jari Pallari
>

I have uploaded a new version of the model with the thigh and pelvis
removed, this resolves the issue of the kienmatics of the thigh and
pelvis. To run the model please replace your current folders with
the ones in the zip file.

The removal of these segments do not change the kinematics of the
foot.

About the rotations: The output in the csv files are the rotations
between the segments mentioned in the respective joints. In a
spherical joint for example it will measure the rotations between
the two mentioned reference systems in the joint using the first
mentioned one as the basis. Please notice that the sequence of these
rotations are by default Z,Y,X

Best regards
SÃ¸ren

— In anyscript@yahoogroups.com, “jari4455” <j.pallari@…> wrote:
>
>
> Hi,
>
> There is a small (?) problem with my model that I have been unable
to
> find the answer for, and I have really hit a kind of a dead end
with
> it. I will upload the foot model and the leg3d files in .zip
files. I
> hope that someone could give it a look at some point.
>
> I know that the model is not perfect, especially if one looks the
> hips. We are really only interested in the ankle rotations and the
> intersegment rotations in the foot. We have only taken
measurements
> from below the knee.
>
> There are three output files (out_Meta/Mid/Ankle.csv), that I
assume,
> are the inter-segment rotations in these joints? I also assume
that
> these rotations are from the perspective of the associated moving
> elements. For example, the ankle rotations should be the rotations
of
> the rearfoot (“Foot”-element in the model) from the perspective of
> the shin. The same principle applies down the chain to forefoot
> rotation from the rearfoot perspective, and to the toe (hallux)
> rotation from the forefoot? Or are these from some other
coordinate
> system?
>
> There is also some “leftover” instability from the segments above
the
> knee. Is there an easy way to get rif of these? I mean the Sacrum
in
> particular.
>
> The folders the files go to are here.
> C:\Program Files\AnyBody Technology\AnyBody.2.0\Repository.5
> \ARep\Aalborg\Patient_2_FootApp_Wedge_Right
>
> C:\Program Files\AnyBody Technology\AnyBody.2.0\Repository.5
> \BRep\Leeds\Leg3D
>
> If anyone could take a look, I would be very grateful.
>
> Thanks,
>
> -Jari Pallari
>

[Non-text portions of this message have been removed]