How does XXXX impact physical function in independent, well-functioning older adults? Evidence from the Health ABC Cohort and implications for the future.

@entity1 @entity1643 @entity308 @entity158
OBJECTIVE: To determine the relationships between @entity1643 ( @entity1643 ) frequency and intensity and self-reported and performance-based physical function in a large cohort of well-functioning older adults. DESIGN: Cross-sectional survey and examination. SETTING: Community-based cohort of the Health, Aging, and Body Composition (Health ABC) study. @entity1 : @entity1 were 2,766 community-dwelling adults, aged 70-79; 42% were African American, 52% were @entity1 . OUTCOME MEASURES: 1) Back @entity158 -location, frequency, intensity; 2) Hip and/or knee @entity158 ; 3) Body mass index (BMI); 4) Self-reported difficulty doing functional tasks; 5) Lower extremity function, using the battery from the Established Populations for Epidemiologic Studies in the Elderly (EPESE); 6) Self-rated health; 7) Comorbidity; 8) @entity308 , using the Center for Epidemiological Studies-Depression (CES-D) scale. RESULTS: @entity1643 was common (36%), and its frequency/intensity was significantly associated with other @entity158 and comorbidities. In gender-specific models, @entity1643 frequency/intensity was not significantly associated with EPESE performance score after adjusting for age, race, BMI, CES-D score, knee @entity158 , @entity158 , and other comorbidities. @entity1643 frequency/intensity, however, was significantly associated with self-reported difficulty with most functional tasks after adjusting for important confounders. CONCLUSIONS: Among well-functioning community-dwelling older adults, @entity1643 frequency/intensity was associated with perceived difficulty in performing important functional tasks, but not with observed physical performance. The demonstrated dose-response relationship between @entity158 frequency/intensity and self-reported task performance difficulty underscores the importance of clinical efforts to treat @entity158 without necessarily eradicating it. Additional work is needed to determine whether back @entity158 is associated with a risk for progressive functional decline and loss of independence in older adults and whether therapeutic interventions can ameliorate decline and, therefore, preserve independence.
