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首页> 外文期刊>Gait & posture >A nondimensional normalization scheme for oxygen utilization data.
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A nondimensional normalization scheme for oxygen utilization data.

机译：氧气利用率数据的无量纲归一化方案。

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摘要

The total oxygen required for gait (gross utilization) is a widely used indicator of locomotor efficiency. The standard scheme of mass normalization (dividing gross utilization by mass) is intended to eliminate confounding effects that arise from variations in age and size. Despite its prevalence, mass normalization has been shown to be inadequate, as the normalized quantity retains a marked dependence on clinically relevant factors. The current study proposes a new scheme for normalizing oxygen utilization data. The new scheme, called net-nondimensional normalization, is based on the use of net oxygen utilization (gross-rest) and nondimensional gait variables. Measures of statistical significance are employed to demonstrate that net nondimensional normalization is superior to mass normalization. Net nondimensional oxygen utilization is shown to be largely independent of the relevant physiological and anatomical factors, and is therefore well suited for studies where an independent measure of gait efficiency is needed.
机译：步态所需的总氧气（总利用率）是运动效率的广泛指标。质量规范化的标准方案（按质量划分总利用率）旨在消除年龄和规模变化引起的混淆效应。尽管普遍存在，但质量归一化仍不充分，因为归一化的量仍对临床相关因素具有显着依赖性。当前的研究提出了一种标准化氧利用数据的新方案。称为净无量纲归一化的新方案基于净氧利用率（总休息）和无量纲步态变量的使用。采用统计显着性量度来证明净无量纲归一化优于质量归一化。净无量纲氧利用显示出与相关的生理和解剖学因素很大程度上无关，因此非常适合需要独立测量步态效率的研究。

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