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首页> 外文期刊>Gait & posture >Gait analysis in children and uncertainty assessment for Davis protocol and Gillette Gait Index.
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Gait analysis in children and uncertainty assessment for Davis protocol and Gillette Gait Index.

机译：儿童的步态分析和Davis方案和吉列步态指数的不确定性评估。

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摘要

The protocol of Davis is widely used in children's gait analysis, especially in cerebral palsy studies and its repeatability was evaluated primarily for adults. The aim of this research was to evaluate the uncertainty and repeatability of this protocol for children. 56 asymptomatic children aged 5-15 years performed the gait exam. Kinematics parameters and Gillette Gait Index (GGI) were calculated. 17 subjects performed the exam twice with markers replacement. Uncertainties on gait parameters were evaluated using repeatability study and Monte Carlo simulations. Uncertainty (2SD of test-retest differences) obtained on angles calculated by the protocol varied between +/-2 degrees and +/-3 degrees (for pelvis and hip in sagittal and frontal planes) and +/-14 degrees (for mean hip rotation). Uncertainty on GGI was +/-12 for healthy subjects. Monte Carlo simulations on 30 cerebral palsy children showed that the error on GGI could reach +/-100 and was correlated to GGI value (R2=0.92): 2SD=24+0.09xGGI.
机译：戴维斯的协议被广泛用于儿童的步态分析，尤其是在脑瘫研究中，其重复性主要是针对成年人进行评估的。这项研究的目的是评估该协议对儿童的不确定性和可重复性。 5名15至15岁的无症状儿童进行了步态检查。计算运动学参数和吉列步态指数（GGI）。 17位受试者两次进行了考试，并更换了记号笔。使用可重复性研究和蒙特卡洛模拟评估步态参数的不确定性。根据协议计算的角度获得的不确定度（重测差异的2SD）在+/- 2度和+/- 3度（对于矢状面和额面的骨盆和髋部）和+/- 14度（对于平均髋部）之间变化回转）。健康受试者的GGI不确定度为+/- 12。对30名脑瘫儿童进行的蒙特卡洛模拟显示，GGI的误差可能达到+/- 100，并且与GGI值相关（R2 = 0.92）：2SD = 24 + 0.09xGGI。

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