Document Detail


Association between a history of falls and the ability to multi-task in community-dwelling older people.
MedLine Citation:
PMID:  20065627     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
BACKGROUND AND AIMS: Many older people fall when they perform tasks which require increased attention. The aim of this study was to determine differences in reaction times, during simple-, dual- and triple-task conditions requiring differing levels of motor coordination, balance control and cognitive attention, between groups of fallers and non-fallers in community-dwelling older individuals.
METHODS: The study involved the recruitment of 87 older individuals living at home, 57 women and 30 men aged 75 to 91 years. Reaction times, measured by pushing a handheld button as quickly as possible in response to a visual stimulus, were measured in four conditions: 1) quiet standing (simple-task); 2) counting backward during quiet standing (dual-task with cognitive demand); 3) stepping in place (dual-task with balance demand); and 4) counting backward while stepping in place (triple-task with cognitive and balance demands).
RESULTS: Twenty-nine (33.3%) participants had fallen at least once during the past year. There were no statistically significant differences in reaction times between non-fallers and fallers during any of the tasks. Reaction times were significantly longer during the dual- and triple-tasks compared with the simple-task conditions in both groups. The ratio between reaction times during dual-tasks with balance demands (stepping in place) and those in the simple-task condition were significantly related to a history of falls and showed the highest odds ratio (OR 3.16, 95% CI 1.06- 9.45, p=0.04).
CONCLUSIONS: Relative changes in reaction times during a dual-task with balance demands were related to a history of falls in community-dwelling older individuals. Reaction times in dual-task conditions with a balance demand were more sensitive to past falls than those during a dual-task with cognitive demands.
Authors:
Hyuma Makizako; Taketo Furuna; Hiroyuki Shimada; Hikaru Ihira; Mika Kimura; Eiichi Uchiyama; Lars I E Oddsson
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Publication Detail:
Type:  Journal Article     Date:  2009-12-18
Journal Detail:
Title:  Aging clinical and experimental research     Volume:  22     ISSN:  1594-0667     ISO Abbreviation:  Aging Clin Exp Res     Publication Date:    2010 Oct-Dec
Date Detail:
Created Date:  2011-03-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101132995     Medline TA:  Aging Clin Exp Res     Country:  Italy    
Other Details:
Languages:  eng     Pagination:  427-32     Citation Subset:  IM    
Affiliation:
Section for Health Promotion, Department of Health and Medical Care, Center for Development of Advanced Medicine for Dementia, National Center for Geriatrics and Gerontology, 35 Gengo, Morioka-machi, Obu, Aichi, 474-8511, Japan. makizako@ncgg.go.jp.
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