High test-retest reliability was found for the Function component , while results for the Disability component were more variable .
Conclusions There is extensive evidence to support the construct validity and sensitivity to change of the LLFDI among various clinical population s of community-dwelling older adults .
Background The choice of measure for use as a primary outcome in geriatric research is contingent upon the construct of interest and evidence for its psychometric properties .
The Late-Life Function and Disability Instrument ( LLFDI ) has been widely used to assess functional limitations and disability in studies with older adults .
The primary aim of this systematic review was to evaluate the current available evidence for the psychometric properties of the LLFDI .
The Veterans Learning to Improve Fitness and Function in Elders Study: a randomized trial of primary care-based physical activity counseling for older men.
OBJECTIVES To determine the effects of primary care-based , multicomponent physical activity counseling ( PAC ) promoting physical activity ( PA ) guidelines on gait speed and related measures of PA and function in older veterans . DESIGN R and omized controlled trial . SETTING Veterans Affairs Medical Center of Durham , North Carolina . PARTICIPANTS Three hundred ninety-eight male veterans aged 70 and older . INTERVENTION Twelve months of usual care ( UC ) or multicomponent PAC consisting of baseline in-person and every other week and then monthly telephone counseling by a lifestyle counselor , one-time clinical endorsement of PA , monthly automated telephone messaging from the primary care provider , and quarterly tailored mailings of progress in PA . MEASUREMENTS Gait speed ( usual and rapid ) , self-reported PA , function , and disability at baseline and 3 , 6 , and 12 months . RESULTS Although no between-group differences were noted for usual gait speed , rapid gait speed improved significantly more for the PAC group ( 1.56 + /- 0.41 m/s to 1.68 + /- 0.44 m/s ) than with UC ( 1.57 + /- 0.40 m/sec to 1.59 + /- 0.42 m/sec , P=.04 ) . Minutes of moderate/vigorous PA increased significantly in the PAC group ( from 57.1 + /- 99.3 to 126.6 + /- 142.9 min/wk ) but not in the UC group ( from 60.2 + /- 116.1 to 69.6 + /- 116.1 min/wk , P<.001 ) . Changes in other functional/disability outcomes were small . CONCLUSION In this group of older male veterans , multicomponent PA significantly improved rapid gait and PA . Translation from increased PA to overall functioning was not observed . Integration with primary care was successful
High test-retest reliability was found for the Function component , while results for the Disability component were more variable .
Conclusions There is extensive evidence to support the construct validity and sensitivity to change of the LLFDI among various clinical population s of community-dwelling older adults .
Background The choice of measure for use as a primary outcome in geriatric research is contingent upon the construct of interest and evidence for its psychometric properties .
The Late-Life Function and Disability Instrument ( LLFDI ) has been widely used to assess functional limitations and disability in studies with older adults .
The primary aim of this systematic review was to evaluate the current available evidence for the psychometric properties of the LLFDI .