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Validity and applicability of a video‐based animated tool to assess mobility in elderly L atin A merican populations
Author(s) -
Guerra Ricardo Oliveira,
Oliveira Bruna Silva,
Alvarado Beatriz Eugenia,
Curcio Carmen Lucia,
Rejeski W Jack,
Marsh Anthony P,
Ip Edward H,
Barnard Ryan T,
Guralnik Jack M,
Zunzunegui Maria Victoria
Publication year - 2014
Publication title -
geriatrics and gerontology international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.823
H-Index - 57
eISSN - 1447-0594
pISSN - 1444-1586
DOI - 10.1111/ggi.12180
Subject(s) - intraclass correlation , confidence interval , medicine , reliability (semiconductor) , gerontology , clinical psychology , psychometrics , power (physics) , physics , quantum mechanics
Aim To assess the reliability and the validity of P ortuguese‐ and S panish‐translated versions of the video‐based short‐form M obility A ssessment T ool in assessing self‐reported mobility, and to provide evidence for the applicability of these videos in elderly L atin A merican populations as a complement to physical performance measures. Methods The sample consisted of 300 elderly participants (150 from B razil, 150 from C olombia) recruited at neighborhood social centers. Mobility was assessed with the M obility A ssessment T ool, and compared with the S hort P hysical P erformance B attery score and self‐reported functional limitations. Reliability was calculated using intraclass correlation coefficients. Multiple linear regression analyses were used to assess associations among mobility assessment tools and health, and sociodemographic variables. Results A significant gradient of increasing M obility A ssessment T ool score with better physical function was observed for both self‐reported and objective measures, and in each city. Associations between self‐reported mobility and health were strong, and significant. M obility A ssessment T ool scores were lower in women at both sites. Intraclass correlation coefficients of the M obility A ssessment T ool were 0.94 (95% confidence interval 0.90–0.97) in B razil and 0.81 (95% confidence interval 0.66–0.91) in C olombia. M obility A ssessment T ool scores were lower in M anizales than in N atal after adjustment by S hort P hysical P erformance B attery, self‐rated health and sex. Conclusions These results provide evidence for high reliability and good validity of the M obility A ssessment T ool in its S panish and P ortuguese versions used in L atin A merican populations. In addition, the M obility A ssessment T ool can detect mobility differences related to environmental features that cannot be captured by objective performance measures. Geriatr Gerontol Int 2014; 14: 864–873.