# Geometry of AnyBody Models

Hello,
for scaling my AnyBody Model to the anthropometry of a model i have to
use in a further simulation i need to know how the size of the
AnyFamily is measured. Is there a presentation which shows how you
measured the single parts of the Bodymodel?
What i need is for example the definition of the foot length. In the
repository it is 0.02m for the 50%ile man. This seems to be very
short. The next is the pelvis width: how is it measured because 0.016m
is the value? If you have a picture which describes where your
reference points for geometrical measuring were, this would help me a
lot.
Thank you very much, best regards Maren

Hi Maren

These are good questions it would be nice with some pictures
explaining these quantities. Unfortunately we do not have this at
the moment so here is the explanation in words:

ThighLength: This is the length from hipjoint center to knee joint
center
ShankLength: Length from KneeJoint center to Ankle joint center
FootLength: Length from Ankle joint center to a node named toe tip
which is located at the tip of the big toe. You can try to add an
AnyDrawRefFrame in this node to see it location.
PelvisWidth: Distance from Right hip joint center to left hip joint
center
TrunkHeight: Distance from C1HatNode joint to L5Sacrum joint
UpperArmLength: Distance from GH joint center to FE joint center
LowerArmLength: Diatance from elbow joint center to wrist joitn
center

I think the explanation of how the foot length is measure explains a
value of 0.2m?(not 0.02m) and it is the same about the Pelvis width
which is 0.16m.?

Please write again if you have further questions

Best regards
SÃ¸ren, AnyBody support

— In anyscript@yahoogroups.com, “Maren” <anystarter@…> wrote:
>
> Hello,
> for scaling my AnyBody Model to the anthropometry of a model i
have
to
> use in a further simulation i need to know how the size of the
> AnyFamily is measured. Is there a presentation which shows how you
> measured the single parts of the Bodymodel?
> What i need is for example the definition of the foot length. In
the
> repository it is 0.02m for the 50%ile man. This seems to be very
> short. The next is the pelvis width: how is it measured because
0.016m
> is the value? If you have a picture which describes where your
> reference points for geometrical measuring were, this would help
me a
> lot.
> Thank you very much, best regards Maren
>

Hi SÃ¶ren,
of course you are right with 0.2 instead of 0.02, so thank you very much for
your explanations. Now it is easier to make my two different simulation models
equal.
Best regards, Maren

AnyBody Support <support@anybodytech.com> schrieb:
Hi Maren

These are good questions it would be nice with some pictures
explaining these quantities. Unfortunately we do not have this at
the moment so here is the explanation in words:

ThighLength: This is the length from hipjoint center to knee joint
center
ShankLength: Length from KneeJoint center to Ankle joint center
FootLength: Length from Ankle joint center to a node named toe tip
which is located at the tip of the big toe. You can try to add an
AnyDrawRefFrame in this node to see it location.
PelvisWidth: Distance from Right hip joint center to left hip joint
center
TrunkHeight: Distance from C1HatNode joint to L5Sacrum joint
UpperArmLength: Distance from GH joint center to FE joint center
LowerArmLength: Diatance from elbow joint center to wrist joitn
center

I think the explanation of how the foot length is measure explains a
value of 0.2m?(not 0.02m) and it is the same about the Pelvis width
which is 0.16m.?

Please write again if you have further questions

Best regards
SÃ¸ren, AnyBody support

— In anyscript@yahoogroups.com, “Maren” <anystarter@…> wrote:
>
> Hello,
> for scaling my AnyBody Model to the anthropometry of a model i
have
to
> use in a further simulation i need to know how the size of the
> AnyFamily is measured. Is there a presentation which shows how you
> measured the single parts of the Bodymodel?
> What i need is for example the definition of the foot length. In
the
> repository it is 0.02m for the 50%ile man. This seems to be very
> short. The next is the pelvis width: how is it measured because
0.016m
> is the value? If you have a picture which describes where your
> reference points for geometrical measuring were, this would help
me a
> lot.
> Thank you very much, best regards Maren
>

NEU: Fragen stellen - Wissen, Meinungen und Erfahrungen teilen. Jetzt auf Yahoo!
Clever.

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

— In anyscript@yahoogroups.com, Maren LÃ¼hring <anystarter@…>
wrote:Hi,
I’ve had the same problem to understand these quantities, and
especially for the PelvisWidth. I think that 0.16m is the measure
from the Right hip joint center to left hip joint center DIVIDED by
2. with Winter, for a 1.75m height man like AnyJack, PelvisWidth =
0.191*Body_Height = 0.33m! So if you divide by 2, it can explain the
value of 0.16m.

Don’t hesitate to tell me if I’m wrong.

Best Regards,
Franck
>
> Hi SÃ¶ren,
> of course you are right with 0.2 instead of 0.02, so thank you very
much for your explanations. Now it is easier to make my two different
simulation models equal.
> Best regards, Maren
>
> AnyBody Support <support@…>
schrieb: Hi Maren
>
> These are good questions it would be nice with some pictures
> explaining these quantities. Unfortunately we do not have this at
> the moment so here is the explanation in words:
>
> ThighLength: This is the length from hipjoint center to knee joint
> center
> ShankLength: Length from KneeJoint center to Ankle joint center
> FootLength: Length from Ankle joint center to a node named toe tip
> which is located at the tip of the big toe. You can try to add an
> AnyDrawRefFrame in this node to see it location.
> PelvisWidth: Distance from Right hip joint center to left hip
joint
> center
> TrunkHeight: Distance from C1HatNode joint to L5Sacrum joint
> HeadHeight: Height in neutral position from C1HatNode to top of
> UpperArmLength: Distance from GH joint center to FE joint center
> LowerArmLength: Diatance from elbow joint center to wrist joitn
> center
>
> I think the explanation of how the foot length is measure explains
a
> value of 0.2m?(not 0.02m) and it is the same about the Pelvis
width
> which is 0.16m.?
>
> Please write again if you have further questions
>
> Best regards
> SÃ¸ren, AnyBody support
>
> — In anyscript@yahoogroups.com, “Maren” <anystarter@> wrote:
> >
> > Hello,
> > for scaling my AnyBody Model to the anthropometry of a model i
> have
> to
> > use in a further simulation i need to know how the size of the
> > AnyFamily is measured. Is there a presentation which shows how
you
> > measured the single parts of the Bodymodel?
> > What i need is for example the definition of the foot length. In
> the
> > repository it is 0.02m for the 50%ile man. This seems to be very
> > short. The next is the pelvis width: how is it measured because
> 0.016m
> > is the value? If you have a picture which describes where your
> > reference points for geometrical measuring were, this would help
> me a
> > lot.
> > Thank you very much, best regards Maren
> >
>
>
>
>
>
>
> ---------------------------------
> NEU: Fragen stellen - Wissen, Meinungen und Erfahrungen teilen.
Jetzt auf Yahoo! Clever.
>
> [Non-text portions of this message have been removed]
>

Hi Franck

You are exactly right ! The PelvisWidth quantity is the distance
between the hip joint centers.

Best regards
SÃ¸ren, AnyBody Support

— In anyscript@yahoogroups.com, “Franck DAVID” <francky9401@…>
wrote:
>
> — In anyscript@yahoogroups.com, Maren LÃ¼hring <anystarter@>
> wrote:Hi,
> I’ve had the same problem to understand these quantities, and
> especially for the PelvisWidth. I think that 0.16m is the measure
> from the Right hip joint center to left hip joint center DIVIDED
by
> 2. with Winter, for a 1.75m height man like AnyJack, PelvisWidth =
> 0.191*Body_Height = 0.33m! So if you divide by 2, it can explain
the
> value of 0.16m.
> Hope this can be helpful.
>
> Don’t hesitate to tell me if I’m wrong.
>
> Best Regards,
> Franck
> >
> > Hi SÃ¶ren,
> > of course you are right with 0.2 instead of 0.02, so thank you
very
> much for your explanations. Now it is easier to make my two
different
> simulation models equal.
> > Best regards, Maren
> >
> > AnyBody Support <support@>
> schrieb: Hi Maren
> >
> > These are good questions it would be nice with some pictures
> > explaining these quantities. Unfortunately we do not have this
at
> > the moment so here is the explanation in words:
> >
> > ThighLength: This is the length from hipjoint center to knee
joint
> > center
> > ShankLength: Length from KneeJoint center to Ankle joint center
> > FootLength: Length from Ankle joint center to a node named toe
tip
> > which is located at the tip of the big toe. You can try to add
an
> > AnyDrawRefFrame in this node to see it location.
> > PelvisWidth: Distance from Right hip joint center to left hip
> joint
> > center
> > TrunkHeight: Distance from C1HatNode joint to L5Sacrum joint
> > HeadHeight: Height in neutral position from C1HatNode to top
of
> > UpperArmLength: Distance from GH joint center to FE joint
center
> > LowerArmLength: Diatance from elbow joint center to wrist joitn
> > center
> >
> > I think the explanation of how the foot length is measure
explains
> a
> > value of 0.2m?(not 0.02m) and it is the same about the Pelvis
> width
> > which is 0.16m.?
> >
> > Please write again if you have further questions
> >
> > Best regards
> > SÃ¸ren, AnyBody support
> >
> > — In anyscript@yahoogroups.com, “Maren” <anystarter@> wrote:
> > >
> > > Hello,
> > > for scaling my AnyBody Model to the anthropometry of a model
i
> > have
> > to
> > > use in a further simulation i need to know how the size of the
> > > AnyFamily is measured. Is there a presentation which shows
how
> you
> > > measured the single parts of the Bodymodel?
> > > What i need is for example the definition of the foot length.
In
> > the
> > > repository it is 0.02m for the 50%ile man. This seems to be
very
> > > short. The next is the pelvis width: how is it measured
because
> > 0.016m
> > > is the value? If you have a picture which describes where your
> > > reference points for geometrical measuring were, this would
help
> > me a
> > > lot.
> > > Thank you very much, best regards Maren
> > >
> >
> >
> >
> >
> >
> >
> > ---------------------------------
> > NEU: Fragen stellen - Wissen, Meinungen und Erfahrungen teilen.
> Jetzt auf Yahoo! Clever.
> >
> > [Non-text portions of this message have been removed]
> >
>

— In anyscript@yahoogroups.com, “AnyBody Support” <support@…> wrote:
>Hi Everybody,

Can you explain me the value of:
lower_lumbar_spine,upper_lumbar_spine,lower_thoracal_spine,upper_thoraca
l_spine,lower_cervical_spine,upper_cervical_spine in the AnyFamily
model?
Is there some coefficient I can use with BodyMass or somehing else to
find them? I did not manage to find it.So Can you help me on this
point?

Thank you so much,
Regards,

Franck

Hi Frank

If you look in the ARep/Aalborg/Gait3D folder you can find a file
look in the Gait3D.main.any file, to see how to include this file

Best regards
SÃ¸ren

— In anyscript@yahoogroups.com, “Franck DAVID” <francky9401@…>
wrote:
>
> — In anyscript@yahoogroups.com, “AnyBody Support” <support@>
wrote:
> >Hi Everybody,
>
> Can you explain me the value of:
>
lower_lumbar_spine,upper_lumbar_spine,lower_thoracal_spine,upper_thor
aca
> l_spine,lower_cervical_spine,upper_cervical_spine in the AnyFamily
> model?
> Is there some coefficient I can use with BodyMass or somehing else
to
> find them? I did not manage to find it.So Can you help me on this
> point?
>
> Thank you so much,
> Regards,
>
> Franck
>

Hi,
I’ve looked in that Folder (AnyMan.any) but i don’t really understand
where do the coefficients come from.
from AnyMan :
AnyVar lower_lumbar_spine = 4.08Body_Mass/70.43;
AnyVar upper_lumbar_spine = 4.62
Body_Mass/70.43;
AnyVar lower_thoracal_spine = 5.09Body_Mass/70.43;
AnyVar upper_thoracal_spine = 6.51
Body_Mass/70.43;
AnyVar lower_cervical_spine = 0.51Body_Mass/70.43;
AnyVar upper_cervical_spine = 0.43
Body_Mass/70.43;

I tried to resolve the same equations for AnyArne, and AnyAnne, but i
can’t find the same results as you.
I’ve also looked in the “Dynamics of Human Gait” as it is written in
the comment, but there is no explanation about those parts of the
body.
In this book, they apparently use some linear regression equation
which has the form :
Segment Mass =C1(TotalBodyMass)+C2(lenght)^3+C3.
But it is not to the same form as in AnyMan.any.
I am sorry to ask such a question, but I really need more precisions
on that.

Kind Regards,
Franck

Hello Franck,

This is John from the AnyBody Research Project. As you may know, the
models in the repository are the results of a lot of rather
uncoordinated efforts from many different researchers working with
the models over time. The contruction of a full body model that is
also scaleable is such a monumental task that it must be done in
cooperation between many different scientists.

information that they put into these files, but the discipline is
often lacking a bit, so many files do not have sufficient description
of the sources. The source of many of the scaling files has
unfortunately been lost over time, or the original programmer has
thought that the background of the data is obvious from the
mathematical expression used.

The good thing about the open source princple is that you have the
oppotunity to investigate what is in the file and change it if you do
not like it.

In terms of investigation, this line

> AnyVar upper_lumbar_spine = 4.62*Body_Mass/70.43;

indicates that a part of the total mass of the body is attributed to
the upper part of the lumbar spine. In the reference model with a
total mass of 70.43 kg, this corresponds to 4.62 kg. Multiplying with
the body mass and dividing by the mass of the reference model makes
sure that the mass scales to other models with different masses. They
then maintain the same relative part of the body mass. This total
body mass is be different for AnyArne, AnyAnne or AnyJack, so the
mass attributed to the upper lumbar spine will also come out
differently.

I hope this was the exlanation you were looking for.

Best regards,
John

— In anyscript@yahoogroups.com, “Franck DAVID” <francky9401@…>
wrote:
>
> Hi,
> I’ve looked in that Folder (AnyMan.any) but i don’t really
understand
> where do the coefficients come from.
> from AnyMan :
> AnyVar lower_lumbar_spine = 4.08Body_Mass/70.43;
> AnyVar upper_lumbar_spine = 4.62
Body_Mass/70.43;
> AnyVar lower_thoracal_spine = 5.09Body_Mass/70.43;
> AnyVar upper_thoracal_spine = 6.51
Body_Mass/70.43;
> AnyVar lower_cervical_spine = 0.51Body_Mass/70.43;
> AnyVar upper_cervical_spine = 0.43
Body_Mass/70.43;
>
> I tried to resolve the same equations for AnyArne, and AnyAnne, but
i
> can’t find the same results as you.
> I’ve also looked in the “Dynamics of Human Gait” as it is written
in
> the comment, but there is no explanation about those parts of the
> body.
> In this book, they apparently use some linear regression equation
> which has the form :
> Segment Mass =C1(TotalBodyMass)+C2(lenght)^3+C3.
> But it is not to the same form as in AnyMan.any.
> I am sorry to ask such a question, but I really need more
precisions
> on that.
>
> Kind Regards,
> Franck
>