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KMID : 0361419960200010140
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Journal of Korean Academy of Rehabilitation Medicine
1996 Volume.20 No. 1 p.140 ~ p.149
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Repeatability of Kinematic Data in Gait Analysis
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Abstract
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To evaluate the intrasubject repeatability of kinematic data in computerized three dimensional gait analysis and to know whether a significant clinical decision could be made on the basis of a single gait evaluation, repeated gait analysis was
done
with
three-dimensional motion analyzer in 10 healthy young men.
Each subject was evaluated in ten runs in a single session on a test day. Time gait parameters, distance parameters, and angle values of hip, knee ankle and pelvis on the specific gait event in a gait cycle in the sagittal, coronal and transverse
planes
were measured. Coefficient of variation was used to evaluate the repeatability.
Intrasubject repeatability was excellent for kinematic data in sagittal plane. In contrast, kinematic data in transverse plane showed relatively poor repeatability.
We concluded that it might be reasonable to base significant clinical decisions on the results of a single gait evaluation and it is necessary to improve algorithm to measure the rotational axis of joint to increase the repeatability of kinematic
data
in transverse plane.
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