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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Do functional walk tests reflect cardiorespiratory fitness in sub-acute stroke? | Journal of NeuroEngineering and Rehabilitation BioMed Central Research The effects of moderate fatigue on dynamic balance control and attentional demands Martin Simoneau Francois Bégin and Normand Teasdale Open Access Address Groupe de Recherche en Analyse du Mouvement et Ergonomie Faculté de Médecine Division de kinesiology Université Laval Québec Canada Email Martin Simoneau - Martin.Simoneau@kin.msp.ulaval.ca Francois Bégin - fbegin55@hotmail.com Normand Teasdale - Normand.Teasdale@kin.msp.ulaval.ca Corresponding authors Published 28 September 2006 Received 21 April 2006 Journal of NeuroEngineering and Rehabilitation 2006 3 22 doi 10.1186 1743-0003-3-22 Accepted 28 September 2006 This article is available from http www.jneuroengrehab.cOm content 3 1 22 2006 Simoneau et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http creativecommons.org licenses by 2.0 which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background During daily activities the active control of balance often is a task per se for example when standing in a moving bus . Other constraints like fatigue can add to the complexity of this balance task. In the present experiment we examined how moderate fatigue induced by fast walking on a treadmill challenged dynamic balance control. We also examined if the attentional demands for performing the balance task varied with fatigue. Methods Subjects n 10 performed simultaneously a dynamic balance control task and a probe reaction time task RT serving as an indicator of attentional demands before and after three periods of moderate fatigue fast walking on a treadmill . For the balance control task the real-time displacement of the centre of pressure CP was provided on a monitor placed in front of the subject at eye level. Subjects were asked to keep their CP within a target moving box moving .
