کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
977044 933168 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Diffusion entropy analysis on the stride interval fluctuation of human gait
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Diffusion entropy analysis on the stride interval fluctuation of human gait
چکیده انگلیسی

In this paper, the diffusion entropy technique is applied to investigate the scaling behavior of stride interval fluctuations of human gait. The scaling behaviors of the stride interval of human walking at norm, slow, and fast rate are similar; with the scale-invariance exponents in the interval [0.663,0.955][0.663,0.955], of which the mean value is 0.821±0.0110.821±0.011. Dynamical analysis of these stride interval fluctuations reveals a self-similar pattern: fluctuation at one time scale are statistically similar to those at multiple other time scales, at least over hundreds of steps, while the healthy subjects walk at their norm rate. The long-range correlations are observed during the spontaneous walking by removal of the trend in the time series with Fourier filter. These findings uncover that the fractal dynamics of stride interval fluctuation of human gait are normally intrinsic to the locomotor systems.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 375, Issue 2, 1 March 2007, Pages 687–692
نویسندگان
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