title: Development of a lateral mobility task to identify individuals at risk for mobility disability and functional decline.
abstract: Lateral mobility is integral to many activities of daily living involving transfer from one position to another. The objective of this study was to develop and evaluate the validity and test-retest reliability of a lateral-mobility (LATMOB) task for older adults. Measurements of lateral mobility, balance, and strength and self-reported and performance-based physical functioning were obtained in 63 women and 77 men > or = 50 years of age. The LATMOB task was significantly correlated with age, knee-extensor strength, grip strength, functional reach, and one-leg-stance time. Test-retest reliability of the task was excellent. The LATMOB task was highly correlated with the car task. Balance was significantly correlated with time to get into and out of a car and performance on the LATMOB task. The LATMOB task was significantly correlated with the Short Physical Performance Battery score. The LATMOB task is valid and reliable, but additional work is needed to assess its sensitivity to change and predictive validity.
authors.affiliation: Dept. of Health and Exercise Sciences, Wake Forest University, Winston-Salem, NC 27109-7868, USA.
authors.forename: Anthony P
authors.initials: AP
authors.lastname: Marsh
authors.forename: W Jack
authors.initials: WJ
authors.lastname: Rejeski
authors.forename: Stacy L
authors.initials: SL
authors.lastname: Hutton
authors.forename: Cristal L
authors.initials: CL
authors.lastname: Brown
authors.forename: Edward
authors.initials: E
authors.lastname: Ip
authors.forename: Jack M
authors.initials: JM
authors.lastname: Guralnik
mesh_terms: D000203:Activities of Daily Living; D000368:Aged; D000369:Aged, 80 and over; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009068:Movement; D004856:Postural Balance; D013647:Task Performance and Analysis