Thanks Craig, I'll read it tomorrow.
BTB, is there anyway we could all contribute interesting monthly articles
that are in print? I get an update from the biomechanics list serve on
research. Obviously if we just listed titles and possible summaries related
to foot and lower extremity function, then we'd all be able to request them,
or keep them on file for future reference.
Anyone interested in contributing to something of this nature???
I don't get anything but JAPMA and the Journal from ACFAS. I can access
Gait an Posture online and that is very helpful. Maybe is we all just
contributed the Journals that we find have the best articles, and a few
peripheral Journals as well, then we could surf them at leisure monthly and
get highlights on the best ones.
Sincerely;
Bruce
----- Original Message -----
From: "Craig Payne" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, July 07, 2004 6:22 PM
Subject: Re: The effect of forefoot and arch posting orthotic designs on
first metatarsophalangeal joint kinematics during gait
Bruce
>I'd like to get a better
> feel
> for how they measured there kinematics, if you have more information
> please
> share.
Debbie presented this >year ago - talked to her then, but not recall all
detailes.
They just used 2 orthotic designs, one of which could hypothetically jam
up the first ray - the Electromagnetic tracking system they used is fine
for what they doing - they found no differences in dynamic first MPJ
rom between devices.
Bruce - check your email - sent you more on the study.
Kind Regards
CP
______
\\_ _//
( @ @ )
********************o00o-()-o00o**********
Craig Payne
Department of Podiatry ph: (+61)(3) 9479 5820
School of Human Biosciences fx: (+61)(3) 9479 5784
Faculty of Health
LaTrobe University
Bundoora, Vic 3086, Australia
http://www.health.latrobe.edu.au/Schools/POD/home.html
*****************************0ooo.********
.ooo0 ( )
( ) ) /
\ ( (_/
\_)
> -----Original Message-----
> From: A group for the academic discussion of current issues in
podiatry
> [mailto:[log in to unmask]] On Behalf Of Bruce Williams
> Sent: Thursday, July 08, 2004 4:02 AM
> To: [log in to unmask]
> Subject: Re: The effect of forefoot and arch posting orthotic designs
on
> first metatarsophalangeal joint kinematics during gait
>
> Joel
> Interesting article, thanks for sharing. I'd like to get a better
> feel
> for how they measured there kinematics, if you have more information
> please
> share.
> Ultimately I feel that there study was flawed. They stated that
they
> were looking at 1st mpj ROM during push off. This is the flaw. If
the
> contralateral limb was weightbearing prior to push off on the examined
> limb,
> then the motion will be full at the 1st mpj. If however the ROM of
the
> 1st
> mpj increased with the orthotic devices prior to contralateral
> weightbearing, then I might agree with them more.
> I will not discount that a properly casted CFO will increase ROM
of
> the
> 1st mpj in most instances. I will state that in my experience w/
f-scan
> and
> kinematic video, the ROM will greatly increase w/ the use of a
properly
> sized first ray c/o.
> The wheel goes round and round and round (talking about me mind you
> all!!!!)
> ; - )
> Sincerely;
> Bruce
> ----- Original Message -----
> From: "Joel Radford" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Tuesday, July 06, 2004 9:38 PM
> Subject: The effect of forefoot and arch posting orthotic designs on
first
> metatarsophalangeal joint kinematics during gait
>
>
> > Hi All,
> >
> > An article that may interest mailbase subscribers?
> >
> > Cheers,
> >
> > Joel.
> >
> >
> > Title:
> > The effect of forefoot and arch posting orthotic designs on first
> > metatarsophalangeal joint kinematics during gait
> >
> > Authors:
> > Nawoczenski, DA; Ludewig, PA
> >
> > Source:
> > JOURNAL OF ORTHOPAEDIC & SPORTS PHYSICAL THERAPY, 34 (6): 317-327;
JUN
> 2004
> >
> > Abstract:
> > Study Design: Repeated-measures analysis of variance.
> >
> > Objective: To examine the effect of 2 different orthotic posting
designs
> on
> > first metatarsophalangeal (first MTP) joint kinematics during gait.
> >
> > Background: Common orthotic designs used to control abnormal
pronation
> > incorporate the use of a medial post in the forefoot and/or rearfoot
> > locations. Although this design may favorably alter rearfoot and
> lower-limb
> > kinematics, the incorporation of a forefoot post has been theorized
to
> > negatively impact first MTP joint function by limiting hallux
> dorsiflexion
> > during push off. An alternative design that has been proposed to be
more
> > favorable for function of the hallux and first metatarsal is the
medial
> arch
> > support.
> >
> > Methods and Measures: Eighteen subjects with a mean age of 28.2
years
> (SD,
> > 8.3 years) completed the study. All subjects were judged to have
> excessive
> > pronation based on a clinical orthopaedic examination. Two different
> pairs
> > of orthoses were custom molded for each subject. One design
incorporated
> an
> > extrinsic rearfoot and forefoot post and the second design had a
high
> medial
> > longitudinal arch in combination with an extrinsic rearfoot post.
The
> "Flock
> > of Birds" electromagnetic tracking device was used to collect
> 3-dimensional
> > position and orientation data of 3 body segments (hallux, first
> metatarsal,
> > and calcaneus) during the stance phase of walking for 3 conditions
(no
> > orthosis and each of the 2 different orthotic designs). A
> repeated-measures
> > analysis of variance was used to assess differences in first MTP
joint
> > dorsiflexion at midstance and during the push-off period of gait, as
> well
> as
> > metatarsal declination angle changes during relaxed stance. An
> exploratory
> > regression a!
> > nalysis was used to investigate factors that related to the change
in
> peak
> > dorsiflexion for the orthotic conditions.
> >
> > Results: Peak first MTP joint dorsiflexion averaged between
38degrees
> and
> > 40degrees across all conditions. Although slight increases in first
MTP
> > joint dorsiflexion values were noted with both types of orthotic
> designs,
> > these differences were not significant at either phase of the stance
> cycle
> > (P = .50). The metatarsal declination angle in relaxed stance
> significantly
> > increased (P = .001) under both orthotic conditions. Considerable
> individual
> > variability was present. For the rearfoot-forefoot posted orthosis,
a
> change
> > in the declination angle of the first metatarsal during relaxed
stance
> with
> > the orthosis was a significant nonlinear predictor of change in peak
> > dorsiflexion during push off.
> >
> > Conclusions: Foot orthoses that incorporate a medial forefoot post
do
> not
> > have a consistent negative effect of reducing first MTP joint
> dorsiflexion
> > during walking.
> >
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