tailieunhanh - báo cáo khoa học: "Attention demanding tasks during treadmill walking reduce step width variability in young adults"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Attention demanding tasks during treadmill walking reduce step width variability in young adults | Journal of NeuroEngineering and Rehabilitation BioMed Central Research Open Access Attention demanding tasks during treadmill walking reduce step width variability in young adults Mark D Grabiner and Karen L Troy Address Department of Movement Sciences University of Illinois at Chicago USA Email Mark D Grabiner - grabiner@ Karen LTroy- klreed@ Corresponding author Published 08 August 2005 Received 27 April 2005 Journal of NeuroEngineering and Rehabilitation 2005 2 25 doi 1743- Accepted 08 August 2005 0003-2-25 This article is available from http content 2 1 25 2005 Grabiner and Troy 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 variability of step time and step width is associated with falls by older adults. Further step time is significantly influenced when performing attention demanding tasks while walking. Without exception step time variability has been reported to increase in normal and pathologically aging older adults. Because of the role of step width in managing frontal plane dynamic stability documenting the influence of attention-demanding tasks on step width variability may provide insight to events that can disturb dynamic stability during locomotion and increase fall risk. Preliminary evidence suggests performance of an attention demanding task significantly decreases step width variability of young adults walking on a treadmill. The purpose of the present study was to confirm or refute this finding by characterizing the extent and direction of the effects of a widely used attention demanding task Stroop test on the step width variability of young adults walking on a motorized treadmill. Methods Fifteen healthy young adults walked on