Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Approximate entropy detects the effect of a secondary cognitive task on postural control in healthy young adults: a methodological report | Journal of NeuroEngineering and Rehabilitation BioMed Central Open Access Methodology Approximate entropy detects the effect of a secondary cognitive task on postural control in healthy young adults a methodological report James T Cavanaugh 1 Vicki S Mercer2 and Nicholas Stergiou3 Address Department of Physical Therapy University of New England Portland ME USA 2Department of Allied Health Sciences The University of North Carolina at Chapel Hill Chapel Hill NC USA and 3HPER Biomechanics Laboratory University of Nebraska at Omaha Omaha NE USA Email James T Cavanaugh - jcavanaugh@ Vicki S Mercer - vmercer@ Nicholas Stergiou - nstergiou@ Corresponding author Published 30 October 2007 Received 3 January 2007 Journal of NeuroEngineering and Rehabilitation 2007 4 42 doi 1743-0003-4-42 Accepted 30 October 2007 This article is available from http content 4 1 42 2007 Cavanaugh et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background Biomechanical measures of postural stability while generally useful in neuroscience and physical rehabilitation research may be limited in their ability to detect more subtle influences of attention on postural control. Approximate entropy ApEn a regularity statistic from nonlinear dynamics recently has demonstrated relatively good measurement precision and shown promise for detecting subtle change in postural control after cerebral concussion. Our purpose was to further explore the responsiveness of ApEn by using it to evaluate the immediate short-term effect of secondary cognitive task performance on postural control in .
