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Báo cáo hóa học: " Test-retest reliability of stride time variability while dual tasking in healthy and demented adults wit"

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: Test-retest reliability of stride time variability while dual tasking in healthy and demented adults wit | Beauchet et al. Journal of NeuroEngineering and Rehabilitation 2011 8 37 http www.jneuroengrehab.eom content 8 1 37 Iril JOURNAL OF NEUROENGINEERING NCR AND REHABILITATION SHORT REPORT Open Access Test-retest reliability of stride time variability while dual tasking in healthy and demented adults with frontotemporal degeneration oli idr Ro . ir hdt1 I on Urol hũr ũr2 f-Qcl r ỉ A n I- A di Idr1 Uotcn A ICroccii i3 Economic p I OiT r . nri4 iC.illoe A n i5 Olivier Beauciiet Ellen Freiberger Cedric Aiuiweiler Reto W I ressig Francois R Herrmann and Gilles Allali Abstract Background Although test-retest reliability of mean values of spatio-temporal gait parameters has been assessed for reliability while walking alone i.e. single tasking little is known about the test-retest reliability of stride time variability STV while performing an attention demanding-task i.e. dual tasking . The objective of this study was to examine immediate test-retest reliability of STV while single and dual tasking in cognitively healthy older individuals CHI and in demented patients with frontotemporal degeneration FTD . Methods Based on a cross-sectional design 69 community-dwelling CHI mean age 75.5 4.3 43.5 women and 14 demented patients with FTD mean age 65.7 9.8 years 6.7 women walked alone without performing an additional task i.e. single tasking and while counting backward CB aloud starting from 50 i.e. dual tasking . Each subject completed two trials for all the testing conditions. The mean value and the coefficient of variation CoV of stride time while walking alone and while CB at self-selected walking speed were measured using GAITRite and SMTEC footswitch systems. Results ICC of mean value in CHI under both walking conditions were higher than ICC of demented patients with FTD and indicated perfect reliability ICC 0.80 . Reliability of mean value was better while single tasking than dual tasking in CHI ICC 0.96 under single-task and ICC 0.86 under dual-task whereas it was the .