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首页> 外文期刊>Journal of prosthetics and orthotics: JPO >Method to Quantify Cadence Variability of Individuals with Lower-Limb Amputation
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Method to Quantify Cadence Variability of Individuals with Lower-Limb Amputation

机译：量化较低肢体截肢的个体的节奏变异的方法

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Introduction: The ability to walk with different cadences (cadence variability) is considered an important factor for determining the functional ability of individuals with lower-limb amputation and making prosthetic recommendations. However, a method to quantify cadence variability of these individuals has never been presented before, so there are no standardized methodologies or values to guide prosthesis prescription. The purpose of this study was to develop and demonstrate feasibility of a method to quantify real-world cadence variability.Materials and Methods: The method utilizes step-count data collected by an accelerometer-based activity monitor. Cadence at each minute is calculated. Then, the spread of the cadence data distribution during a 7-day observation period is measured to quantify cadence variability. To demonstrate feasibility, this method was applied to a set of step-count data for individuals with unilateral lower-limb amputation classified by their health care provider as a K2 or K3 ambulator. Results: Results showed that this method was able to differentiate the cadence characteristics of individuals classified as K2 versus K3. On average, individuals classified as K2 walked with significantly less cadence variability than those classified as K3. Conclusions: This study provides a novel method for objectively determining cadence variability and provides a foundation for ultimately developing normative cadence characteristic values for K2 and K3 levels.
机译：介绍：走路的能力（Cadence Varibility）被认为是确定具有较低肢体截肢的个人功能能力并制定假体推荐的重要因素。然而，以前从未提出过量化这些人的节奏变异性的方法，因此没有标准化的方法或值来指导假体处方。本研究的目的是开发和证明量化现实世界的节奏变异性的方法的可行性。材料和方法：该方法利用由基于加速度计的活动监视器收集的步进计数数据。计算每分钟的韵律。然后，测量在7天观察期间的节奏数据分布的传播以量化节奏变异性。为了证明可行性，将该方法应用于由其医疗保健提供者作为K2或K3救护者分类的单侧下肢截肢的个人的一组步数数据。结果：结果表明，该方法能够区分分类为K2与K3分类的个体的节奏特征。平均而言，分类为K2的个体，比分类为K3的节奏变异性明显减少。结论：本研究提供了一种幽默地确定凹陷变异性的新方法，并为最终开发K2和K3水平的规范性节点特征值提供基础。

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