tailieunhanh - Báo cáo khoa hoc:" Control of the upper body accelerations in young and elderly women during level walking"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Control of the upper body accelerations in young and elderly women during level walking | Journal of NeuroEngineering and Rehabilitation BioMed Central Research Control of the upper body accelerations in young and elderly women during level walking Claudia Mazzà f Marco Iosaf Fabrizio Pecorarof and Aurelio Cappozzof Address Department of Human Movement and Sport Sciences Università degli Studi di Roma Foro Italico Rome Italy Email Claudia Mazzà - Marco Iosa - Fabrizio Pecoraro - Aurelio Cappozzo - Corresponding author fEqual contributors Open Access Published 17 November 2008 Received 15 February 2008 Journal of NeuroEngineering and Rehabilitation 2008 5 30 doi l743-0003-5-30 Accepted I7 November 2008 This article is available from http content 5 1 30 2008 Mazzà 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 The control of the head movements during walking allows for the stabilisation of the optic flow for a more effective processing of the vestibular system signals and for the consequent control of equilibrium. In young individuals the oscillations of the upper body during level walking are characterised by an attenuation of the linear acceleration going from pelvis to head level. In elderly subjects the ability to implement this motor strategy is reduced. The aim of this paper is to go deeper into the mechanisms through which the head accelerations are controlled during level walking in both young and elderly women specifically. Methods A stereophotogrammetric system was used to reconstruct the displacement of markers located at head shoulder and pelvis level while l6 young age

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