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Differences of useful bandwidth in the step of the march of patients with Parkinson's disease

机译：帕金森病患者3月份有用带宽的差异

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The march in patients affected by Parkinson's disease (PD) is characterized by pronounced corporal imbalance and instability of movements. This work studies new parameters that discrimine between Parkinson's and healthy people, using the analysis of the march signals, specifically the length between two consecutive steps. The parameters analyzed from the time interval vector of steps were: the variability coefficient and the useful energy bandwidth of the movement over −10dB of the estimation of the signal's spectral power through periodogram These parameters were evaluated in 15 PD patients and 15 healthy people (control group). Statistical T-student test for both parameters shows that the useful bandwidth (p=0,0233) was differences statistically significantives between both groups. Meanwhile for the variability coefficients was not differences statistically significantives between groups (p=0,346177667). The proposed procedure can be used as basis of research in early alterations march detection, and could be used to precocious Parkinson's diagnosis. However, this study does not discriminate among the diverse diseases that affect the march, it is recommended to carry out news researches increasing the number of signals and population.
机译：受帕金森病疾病（PD）影响的患者的3月的特点是明显的人物不平衡和运动不稳定。这项工作研究了帕金森和健康人民之间的歧视的新参数，使用3月信号的分析，特别是两个连续步骤之间的长度。从步骤的时间间隔向量分析的参数是：变化系数和运动的有用能量带宽＆＃x2212; 10db通过期间图估计信号的光谱功率，在15个PD患者中评估了15例，健康人（对照组）。两个参数的统计T学生测试表明，有用的带宽（P＆＃x003d; 0,0233）在两个组之间的差异有差异。同时，对于变异系数，在组之间的统计学意义并不差异（P＆＃x003d; 0,346177667）。该拟议的程序可作为早期改变3月检测研究的研究的基础，可用于预先涉及帕金森的诊断。然而，本研究并未区分影响3月的多种疾病，建议开展新闻研究，增加信号数量和人口数量。

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