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View Full Version : Re: HEEL STRIKE or CENTER OF PRESSURE/POSITION LOCATION



David Smith
07-27-2006, 08:30 PM
Dear Brooke

If you characterise the CoP on the force plate and then, using the 3D motion
data, track the postion of the foot at each sample of 120hz or whaterver
rate you are using. Then overlay the the two charts won't that give you the
CoP on the foot at a certain point of interest in the gait cycle?

cheers Dave

----- Original Message -----
From: "b"
To:
Sent: Thursday, July 27, 2006 7:41 PM
Subject: [BIOMCH-L] HEEL STRIKE or CENTER OF PRESSURE/POSITION LOCATION


> Dear all,
>
> We are in search of a device to determine the location (plus/minus ~2cm)
> of a
> heel strike (or center of pressure/position) during gait analysis, in
> real time. No quantitative pressure, force, or moment readings are
> necessary. Does anyone have such a device or know of where to obtain
> one?
>
> BACKGROUND:
> Our motion analysis laboratory studies motion characteristics in
> walking. We currently have two force plates embedded in the floor and
> are looking to obtain the position (heel strike or center of
> pressure/position) of a third foot step.
>
> AIM:
> To locate the position of a heel strike (or center of pressure/position)
> in real time of a walking trial.
>
> SPECIFICATION:
> 1) Real-time data
> 2) Resolution: plus/minus ~2cm
> 3) Size: ~40cm by 60cm ? one single foot step
>
>
> Thank You,
>
> Brooke Coley
> Graduate Student
> University of Pittsburgh
>
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