OBJECTIVE: to identify sensorimotor and psychosocial determinants of 3-year incident mobility disability. DESIGN: prospective. SETTING: population-based sample of community-dwelling older persons. PARTICIPANTS: community-living middle-aged and older persons (age: 50-85 years) without baseline mobility disability (n = 622). MEASUREMENTS: mobility disability, defined as self-reported inability to walk a quarter mile without resting or inability to walk up a flight of stairs unsupported, was ascertained at baseline and 3-year follow-up. Potential baseline determinant characteristics included demographics, education, social support, financial condition, knee extensor strength, visual contrast sensitivity, cognition, depression, presence of chronic conditions and history of falls. RESULTS: a total of 13.5% participant reported 3-year incident mobility disability. Age ≥75 years, female sex, knee extensor strength in the lowest quartile, visual contrast sensitivity <1.7 on the Pelli-Robson chart or significant depressive symptoms (CESD score >16) were independent determinants of 3-year incident mobility disability (ORs 1.84-16.51). CONCLUSIONS: low visual contrast sensitivity, poor knee extensor strength and significant depressive symptoms are independent determinants of future onset of mobility disability.
OBJECTIVE: to identify sensorimotor and psychosocial determinants of 3-year incident mobility disability. DESIGN: prospective. SETTING: population-based sample of community-dwelling older persons. PARTICIPANTS: community-living middle-aged and older persons (age: 50-85 years) without baseline mobility disability (n = 622). MEASUREMENTS: mobility disability, defined as self-reported inability to walk a quarter mile without resting or inability to walk up a flight of stairs unsupported, was ascertained at baseline and 3-year follow-up. Potential baseline determinant characteristics included demographics, education, social support, financial condition, knee extensor strength, visual contrast sensitivity, cognition, depression, presence of chronic conditions and history of falls. RESULTS: a total of 13.5% participant reported 3-year incident mobility disability. Age ≥75 years, female sex, knee extensor strength in the lowest quartile, visual contrast sensitivity <1.7 on the Pelli-Robson chart or significant depressive symptoms (CESD score >16) were independent determinants of 3-year incident mobility disability (ORs 1.84-16.51). CONCLUSIONS: low visual contrast sensitivity, poor knee extensor strength and significant depressive symptoms are independent determinants of future onset of mobility disability.
Authors: Richard M Allman; Patricia Sawyer Baker; Richard M Maisiak; Richard V Sims; Jeffrey M Roseman Journal: J Gen Intern Med Date: 2004-11 Impact factor: 5.128
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Authors: Andrea L Rosso; Andrea L Metti; Kimberly Faulkner; Jennifer S Brach; Stephanie A Studenski; Mark Redfern; Caterina Rosano Journal: J Am Geriatr Soc Date: 2019-07-18 Impact factor: 5.562