Sylvain!
thks for the message. how could I get the practcial hip reaction forces when
taking the frame of pelivs into account?
waiting for your message
regards
Alec
----- 原始邮件 ----
�件人: AnyBody Support <support@anybodytech.com>
æ"¶ä»¶äººï¼š anyscript@yahoogroups.com
2008/6/30(周一), 下�9:30:04
主题: [AnyScript] Re: Problem of obtaining joint forces by gait3D
Hi Alec,
Just a small correction: the hip reaction force is displayed in the
local frame of the femur and not in the frame of the pelvis as I said
in the previous message. Please take it into account.
Best regards,
Sylvain, AnyBody Support.
— In anyscript@yahoogrou ps.com, “AnyBody Support” <support@… >
wrote:
>
> Hi Alec,
>
> The reaction force on the hip has 3 components: Reaction.Fout[ 0],
> Reaction.Fout[ 1] and Reaction.Fout[ 2]. Component [0] refer to the
> first axis (X in this case), components [1] refer to the second
axis
> (Y in this case) and component [2] refer to the third axis (Z in
this
> case). You can see in the legend box of the graph which colours
> correspond to which component.
> Notice that the forces are given in the local frame of the pelvis.
So
> the axis [0], [1] and [2] are the X, Y and Z of the pelvis.
>
> I hope this makes it clear.
>
> Best regards,
> Sylvain, AnyBody Support.
>
>
>
> — In anyscript@yahoogrou ps.com, “yueningma” <yueningma@> wrote:
> >
> > thanks for Søren and Jokke’s answer.
> > To be honest, the curves about displacement and acceleration
could
> be
> > learned easily.But about reaction forces of the body modeling
seem a
> > little different. For example,the hip joint forces.
> > the hip joint is a sphere joint and have 3 degrees of freedom.
when
> > studing the joint forces, the curves in ChartFX window could be
got
> > with the legend. the colors of force curve respesnt the same
> > dircetions as the displacements’ .
> > Actualy, the hip joint force is devided into 3 directions. but
how
> to
> > decide the exact one for each axis.
> >
> > how can i learn it in detail?
> >
> > Regards
> >
> > Alec
> >
> >
> > — In anyscript@yahoogrou ps.com, “AnyBody Support” <support@>
> wrote:
> > >
> > > Hi Alec
> > >
> > >
> > >
> > > In the ChartFX window you can click on an icon which looks like
a
> > table, if
> > > you hold the mouse over this icon it will say Data Editor, this
> will
> > display
> > > a table below the graph which will contain legends for the
> plotted data.
> > > This will allow you to see which colors are representing the
data.
> > >
> > >
> > >
> > > Regarding the other question, I agree with Jokke, more info is
> needed.
> > >
> > >
> > >
> > > Best regards
> > >
> > > Søren
> > >
> > >
> > >
> > > _____
> > >
> > > From: anyscript@yahoogrou ps.com
[mailto:anyscript@yahoogrou ps.com]
> > On Behalf
> > > Of joakim_holmberg
> > > Sent: 27 June 2008 08:39
> > > To: anyscript@yahoogrou ps.com
> > > Subject: [AnyScript] Re: Problem of obtaining joint forces by
> gait3D
> > >
> > >
> > >
> > > Hello.
> > > I might have misunderstod your questions totally. With that
said
> I’ll
> > > go on.
> > > Usually, the different colors of the curves descibe forces,
> > > accelerations etc in different coordinates (directions) . How to
> get
> > > reasonable results? Well, I think you need to supply more input
> to be
> > > able to get help from anyone.
> > > /jokke (Sockertoppen Labs)
> > >
> > > — In anyscript@yahoogrou <mailto:anyscript% 40yahoogroups. com>
> ps.com,
> > > “yueningma” <yueningma@> wrote:
> > > >
> > > > Hello.
> > > > Those days the gait3D model is used to get joint forces such
as
> > > > hip,ankle and so on. The model is computed with the markers’
> > > > displacement values and force plate data. But how to get the
> reasonal
> > > > results?
> > > > Also when analysing used the model , from chartFX window
> reaction
> > > > forces of a contrsain ,such as in hip joint folder, could be
> got. What
> > > > are the different curves mean? The red ,yellow curves are for
> what? I
> > > > am exhausted.
> > > >
> > > > regrads.
> > > >
> > > >
> > > > Alec
> > > >
> > >
> > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
>
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