[논문]Stepping over obstacles: Attention demands and aging

Harley, C.; Wilkie, R.M.; Wann, J.P.

doi:10.1016/j.gaitpost.2008.10.063

Stepping over obstacles: Attention demands and aging 원문보기

Gait & posture, v.29 no.3, 2009년, pp.428 - 432

Harley, C. (Institute of Psychological Sciences, University of Leeds, University Rd, Leeds LS2 9JT, UK) , Wilkie, R.M. , Wann, J.P.

Abstract ▼ AI-Helper

Older adults have been shown to trip on obstacles despite taking precautions to step carefully. It has been demonstrated in dual-task walking that age-related decline in cognitive and attentional mechanisms can compromise postural management. This is yet to be substantiated during obstacle negotiation when walking. Forty-six healthy volunteers (aged 20-79 years) stepped over obstacles in their path whilst walking and performing a verbal fluency task. Using 3D kinematic analysis we compared obstacle crossing during single-task (obstacle crossing only) and dual-task (obstacle crossing with verbal task) conditions. We grouped the participants into three age groups and examined age-related changes to cognitive interference on obstacle crossing. During dual-task trials, the 20-29 and 60-69 groups stepped closer to the obstacles prior to crossing, increased vertical toe-obstacle clearance, and had reduced gait variability. In these two groups there was a small dual-task decrease in verbal output. The 70-79 group applied similar dual-task stepping strategies during pre-crossing. However, during crossing they showed reduced vertical toe-to-obstacle clearance and increased variability of obstacle-to-heel distance. Additionally, this group did not show any significant change to verbal output across trials. These results suggest that with advanced age, increased cognitive demands are more likely to have a detrimental impact on motor performance, leading to compromised safety margins and increased variability in foot placement. We conclude that younger adults utilise a posture-preserving strategy during complex tasks but the likelihood of this strategy being used decreases with advanced age.

주제어

참고문헌 (28)

Bone Hayes 18 1 Suppl. 77S 1996 10.1016/8756-3282(95)00383-5 Etiology and prevention of age-related hip fractures

상세보기
Age Ageing Campbell 19 2 136 1990 10.1093/ageing/19.2.136 Circumstances and consequences of falls experienced by a community population 70 years and over during a prospective study

상세보기
Gait Posture Woollacott 16 1 1 2002 10.1016/S0966-6362(01)00156-4 Attention and the control of posture and gait: a review of an emerging area of research

상세보기
Brain Res Bull Huxhold 69 3 294 2006 10.1016/j.brainresbull.2006.01.002 Dual-tasking postural control: aging and the effects of cognitive demand in conjunction with focus of attention

상세보기
Psychol Aging Lindenberger 15 3 417 2000 10.1037/0882-7974.15.3.417 Memorizing while walking: increase in dual-task costs from young adulthood to old age

상세보기
Am J Prev Med Frank 25 3 Suppl. 2 157 2003 10.1016/S0749-3797(03)00179-X Balance and mobility challenges in older adults: implications for preserving community mobility

상세보기
J Am Geriatr Soc Shumway-Cook 51 3 393 2003 10.1046/j.1532-5415.2003.51114.x Environmental components of mobility disability in community-living older persons

상세보기
Phys Ther Shumway-Cook 82 7 670 2002 10.1093/ptj/82.7.670 Environmental demands associated with community mobility in older adults with and without mobility disabilities

상세보기
Exp Brain Res Lajoie 97 1 139 1993 10.1007/BF00228824 Attentional demands for static and dynamic equilibrium

상세보기
J Gerontol A Biol Sci Med Sci Benjuya 59 2 166 2004 10.1093/gerona/59.2.M166 Aging-induced shifts from a reliance on sensory input to muscle cocontraction during balanced standing

상세보기
Gerontology Melzer 47 4 189 2001 10.1159/000052797 Age-related changes of postural control: effect of cognitive tasks

상세보기
Gait Posture Schrodt 19 3 279 2004 10.1016/S0966-6362(03)00067-5 Characteristics of stepping over an obstacle in community dwelling older adults under dual-task conditions

상세보기
J Gerontol A Biol Sci Med Sci Chen 51 3 M116 1996 10.1093/gerona/51A.3.M116 Stepping over obstacles: dividing attention impairs performance of old more than young adults

상세보기
J Gerontol A Biol Sci Med Sci Brown 60 7 924 2005 10.1093/gerona/60.7.924 Age-dependent differences in the attentional demands of obstacle negotiation
J Neuropsychiatry Clin Neurosci Royall 14 4 377 2002 10.1176/appi.neuropsych.14.4.377 Executive control function: a review of its promise and challenges for clinical research. A report from the Committee on Research of the American Neuropsychiatric Association
Age Ageing Coppin 35 6 619 2006 10.1093/ageing/afl107 Association of executive function and performance of dual-task physical tests among older adults: analyses from the InChianti study

상세보기
Clin Rehabil Cockburn 17 2 167 2003 10.1191/0269215503cr597oa Changing patterns of cognitive-motor interference (CMI) over time during recovery from stroke

상세보기
Parker 267 1992 Handbook of Neuropsychological Assessment Assessment of frontal lobe dysfunction
Am Psychol Estes 29 740 1974 10.1037/h0037458 Learning theory and intelligence

상세보기
J Psychiatr Res Folstein 12 3 189 1975 10.1016/0022-3956(75)90026-6 “Mini-mental state”. A practical method for grading the cognitive state of patients for the clinician

상세보기
Nelson 1991 National Adult Reading Test Manual
Arch Clin Neuropsychol Tombaugh 14 2 167 1999 Normative data stratified by age and education for two measures of verbal fluency: FAS and animal naming

상세보기
J Int Neuropsychol Soc Dikmen 5 4 346 1999 10.1017/S1355617799544056 Test-retest reliability and practice effects of expanded Halstead-Reitan Neuropsychological Test Battery

상세보기
J Gerontol Chen 46 6 M196 1991 10.1093/geronj/46.6.M196 Stepping over obstacles: gait patterns of healthy young and old adults
Bonferroni CE. Teoria statistica delle classi e calcolo delle probabilit a. Pubblicazioni del R Istituto Superiore di Scienze Economiche e Commerciali di Firenze 1936;8:3-62.
Gait Posture Bloem 14 3 191 2001 10.1016/S0966-6362(01)00141-2 The Multiple Tasks Test: development and normal strategies

상세보기
Exp Brain Res Mohagheghi 155 4 459 2004 10.1007/s00221-003-1751-7 The effects of distant and on-line visual information on the control of approach phase and step over an obstacle during locomotion

상세보기
Br J Psychol Swan 95 Pt 1 31 2004 10.1348/000712604322779442 Improving balance by performing a secondary cognitive task

상세보기

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 논문명, 저널/프로시딩명, 저자 , 발행년, 권, 호, 시작페이지, 끝페이지, 발행기관 관리번호, 논문명, 대등논문명, 저자 , 저널/프로시딩명, 발행기관, 발행년, 발행언어, 권, 호, 시작페이지, 끝페이지, ISBN, ISSN, 주제분야, 키워드, 초록(한글), 초록(영문), 저자(소속기관)
저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Stepping over obstacles: Attention demands and aging 원문보기

Abstract ▼ AI-Helper

주제어

참고문헌 (28)

이 논문을 인용한 문헌

관련 콘텐츠

원문 보기

원문 URL 링크

오픈액세스(OA) 유형

이 논문과 함께 이용한 콘텐츠

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트