Knee/ankle flexion data from the Gait model?

Hi all!

I’m having some problems with getting the required data out from
Anybody. I’m sure that this is something quite straightforward.

In the Gait model how can I get the angle between the shin and the
thigh (knee flexion angle), or the ankle flexion angle?

One would assume that this would give you the answer:
Main.Study.Output.Model.HumanModel.Interface.Right.KneeFlexion.Pos

However, this seems to be the same thing I get from a dozen other
places for the knee, such as:

Main.Study.Output.Model.HumanModel.Right.Leg.Jnt.Knee.Pos
Main.Study.Output.Model.HumanModel.Right.Leg.JntDOF.Knee.Pos
Main.Study.Output.Model.ModelEnvironmentConnection.ModelFolderRef.Righ
t.Leg.Jnt.Knee.Pos
Main.Study.Output.Model.ModelEnvironmentConnection.ModelFolderRef.Inte
rface.Right.FolderSide.Leg.Jnt.Knee.Pos

etc…

Is this angular or positional data?

Cheers,

-Jari


Jari Pallari
MSc. (Eng.) PhD Student
University of Leeds

menjhpp@leeds.ac.uk
+44 79 210 89 264

Hi Jari,

This is quite straightforward. You can find the knee angle in the
joint definition where you suspected it would be, i.e.
Main.Study.Output.Model.HumanModel.Right.Leg.Jnt.Knee.Pos

Notice that the output is in radians and that the angle definition in
general depends on the definition of coordinate systems of the two
segments connected by the joint. So sometimes it may have a different
sign or be offset by some angle compared to the anatomical
definition.

Best regards,
AnyBody Support.

— In anyscript@yahoogroups.com, “jaripallari” <higgs@c…> wrote:
>
> Hi all!
>
> I’m having some problems with getting the required data out from
> Anybody. I’m sure that this is something quite straightforward.
>
> In the Gait model how can I get the angle between the shin and the
> thigh (knee flexion angle), or the ankle flexion angle?
>
> One would assume that this would give you the answer:
> Main.Study.Output.Model.HumanModel.Interface.Right.KneeFlexion.Pos
>
> However, this seems to be the same thing I get from a dozen other
> places for the knee, such as:
>
> Main.Study.Output.Model.HumanModel.Right.Leg.Jnt.Knee.Pos
> Main.Study.Output.Model.HumanModel.Right.Leg.JntDOF.Knee.Pos
>
Main.Study.Output.Model.ModelEnvironmentConnection.ModelFolderRef.Righ
> t.Leg.Jnt.Knee.Pos
>
Main.Study.Output.Model.ModelEnvironmentConnection.ModelFolderRef.Inte
> rface.Right.FolderSide.Leg.Jnt.Knee.Pos
>
> etc…
>
> Is this angular or positional data?
>
> Cheers,
>
> -Jari
>
> –
> Jari Pallari
> MSc. (Eng.) PhD Student
> University of Leeds
>
> menjhpp@l…
> +44 79 210 89 264
>