Mobility limitation in self-described well-functioning older adults

Importance of endurance walk testing

Eleanor Marie Simonsick, Anne B. Newman, Marjolein Visser, Bret Goodpaster, Stephen B. Kritchevsky, Susan Rubin, Michael C. Nevitt, Tamara B. Harris

Research output: Contribution to journalArticle

Abstract

Background. Mobility limitations are prevalent, potentially reversible precursors to mobility loss that may go undetected in older adults. This study evaluates standardized administration of an endurance walk test for identifying unrecognized and impending mobility limitation in community elders. Methods. Men and women (1480 and 1576, respectively) aged 70-79 years with no reported mobility limitation participating in the Health, Aging and Body Composition study were administered the Long Distance Corridor Walk. Walk performance was examined to determine unrecognized mobility deficits at baseline and predict new self-recognition of mobility limitation within 2 years. Results. On testing, 23% and 36% of men and women evidenced mobility deficits defined as a contraindication to exertion, meeting stopping criteria or exceeding 7 minutes to walk 400 m. Unrecognized deficits increased with age and were more prevalent in blacks, smokers, obese individuals, and infrequent walkers. Within 2 years, 21% and 34% of men and women developed newly recognized mobility limitation; those with baseline unrecognized deficits had higher rates, 40% and 54% (p <.001), respectively. For each additional 30 seconds over 5 minutes needed to walk 400 m, likelihood of newly recognized mobility limitation increased by 65% and 37% in men and women independent of age, race, obesity, smoking status, habitual walking, reported walking ease, and usual gait speed. Conclusions. A sizable proportion of elders who report no walking difficulty have observable deficits in walking performance that precede and predict their recognition of mobility limitation. Endurance walk testing can help identify these deficits and provide the basis for treatment to delay progression of mobility loss.

Original languageEnglish (US)
Pages (from-to)841-847
Number of pages7
JournalJournals of Gerontology - Series A Biological Sciences and Medical Sciences
Volume63
Issue number8
StatePublished - Aug 2008

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Mobility Limitation
Walking
Walkers
Body Composition
Obesity
Smoking
Health

Keywords

  • Endurance
  • Limitation
  • Mobility
  • Performance
  • Testing
  • Walking

ASJC Scopus subject areas

  • Aging
  • Geriatrics and Gerontology

Cite this

Mobility limitation in self-described well-functioning older adults : Importance of endurance walk testing. / Simonsick, Eleanor Marie; Newman, Anne B.; Visser, Marjolein; Goodpaster, Bret; Kritchevsky, Stephen B.; Rubin, Susan; Nevitt, Michael C.; Harris, Tamara B.

In: Journals of Gerontology - Series A Biological Sciences and Medical Sciences, Vol. 63, No. 8, 08.2008, p. 841-847.

Research output: Contribution to journalArticle

Simonsick, EM, Newman, AB, Visser, M, Goodpaster, B, Kritchevsky, SB, Rubin, S, Nevitt, MC & Harris, TB 2008, 'Mobility limitation in self-described well-functioning older adults: Importance of endurance walk testing', Journals of Gerontology - Series A Biological Sciences and Medical Sciences, vol. 63, no. 8, pp. 841-847.
Simonsick, Eleanor Marie ; Newman, Anne B. ; Visser, Marjolein ; Goodpaster, Bret ; Kritchevsky, Stephen B. ; Rubin, Susan ; Nevitt, Michael C. ; Harris, Tamara B. / Mobility limitation in self-described well-functioning older adults : Importance of endurance walk testing. In: Journals of Gerontology - Series A Biological Sciences and Medical Sciences. 2008 ; Vol. 63, No. 8. pp. 841-847.
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