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=c5sa Hedberg
12-18-1996, 07:58 PM
Questions for Mac Reflex and AutoGait users. Our lab has been using the Mac=
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Reflex motion analysis system and is looking to use AutoGait for research=20
with arthritic children. Our concern is the accuracy of marker placement=20
especially with the Thigh Maker Wand and the Shank Marker Wand in measuring=
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rotations. Wouldn=92t there be errors because of excessive vibrations of the=
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marker and wand? Has anyone overcome this problem? Is the small calibration=
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grid adequate for full body motion or are errors outside the volume=20
substantial thereby warranting a larger calibration volume? Has anyone=20
validated the accuracy of AutoGait or are there papers regarding its=20
accuracy? Is AutoGait adequate for research applications or restricted to=
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clinical applications? As we are the only institution in Sweden to use this=
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system it has been difficult in obtaining other perspectives regarding this=
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package. Therefore we feel it necessary to pose these questions to other Mac=
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Reflex users via BIOMCH-L. I will be glad to post a summary of references or=
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comments. Thanks.

Eva Hedengren
Karolinska Institute
St Goran's Hospital
Motoriklab

email asahed@ki.se
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=C5sa Hedberg, PT
Motoriklab, plan -1
Barndivisionen
S:t G=F6ransgatan 141
112 81 Stockholm
Sweden
Tel: +46 (0)8 672 47 01=20
Fax: +46 (0)8 672 49 15
Email: asahed@ki.se
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