Predicting 3-year incident mobility disability in middle-aged and older adults using physical performance tests.

Abstract:

OBJECTIVE:To identify a standard physical performance test, which can predict 3-year incident mobility disability independent of demographics. DESIGN:Longitudinal cohort study. SETTING:Population-based middle-aged and older adult cohort assessment performed at a local geriatric clinical center. PARTICIPANTS:Community-living middle-aged and older persons (age, 50-85y) without baseline mobility disability (N=622). INTERVENTIONS:Not applicable. MAIN OUTCOME MEASURES:Mobility disability was ascertained at baseline and at 3-year follow-up using an established self-report method: self-reported inability to walk a quarter mile without resting or inability to walk up a flight of stairs unsupported. Physical performance tests included self-selected usual gait speed, time required to complete 5 times sit-to-stand (5TSTS), and 400-m brisk walking. Demographic variables age, sex, height, and weight were recorded. RESULTS:Overall, 13.5% participants reported 3-year incident mobility disability. Usual gait speed <1.2m/s, requiring >13.6 seconds to complete 5TSTS, and completing 400m at <1.19m/s walking speed were highly predictive of future mobility disability independent of demographics. CONCLUSIONS:Inability to complete 5TSTS in <13.7 seconds can be a clinically convenient guideline for monitoring and for further assessment of middle-aged and older persons, in order to prevent or delay future mobility disability.

journal_name

Arch Phys Med Rehabil

authors

Deshpande N,Metter EJ,Guralnik J,Bandinelli S,Ferrucci L

doi

10.1016/j.apmr.2012.10.032

subject

Has Abstract

pub_date

2013-05-01 00:00:00

pages

994-7

issue

5

eissn

0003-9993

issn

1532-821X

pii

S0003-9993(12)01114-8

journal_volume

94

pub_type

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