کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4065021 1266237 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of postural control deficit in whiplash patients by means of linear and nonlinear analyses – A pilot study
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی ارتوپدی، پزشکی ورزشی و توانبخشی
پیش نمایش صفحه اول مقاله
Characterization of postural control deficit in whiplash patients by means of linear and nonlinear analyses – A pilot study
چکیده انگلیسی

The ability to maintain balance is diminished in patients suffering from a whiplash injury. The aim of this study was to characterize the variability of postural control in patients with chronic whiplash injury. For this purpose, we analyzed static postural recordings from 11 whiplash patients and sex- and age-matched asymptomatic healthy volunteers. Static postural recordings were performed randomly with eyes open, eyes closed, and eyes open and speaking (dual task). Spatial–temporal changes of the center of pressure displacement were analyzed to assess the amplitude and structure of postural variability by computing, respectively, the standard deviation/coefficient of variation and sample entropy/fractal dimension of the time series. The amplitude of variability of the center of pressure was larger among whiplash patients compared with controls (P < 0.001) while fractal dimension was lower (P < 0.001). The sample entropy increased during both eyes closed and a simple dual task compared with eyes open (P < 0.05). The analysis of postural control dynamics revealed increased amplitude of postural variability and decreased signal dimensionality related to the deficit in postural stability found in whiplash patients. Linear and nonlinear analyses can thus be helpful for the quantification of postural control in normal and pathological conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electromyography and Kinesiology - Volume 21, Issue 2, April 2011, Pages 291–297
نویسندگان
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