Resumen de Ankle proprioception-associated gait patterns in older adults: Results from the baltimore longitudinal study of aging
Seung-uk Ko, Eleanor M. Simonsick, Nandini Deshpande
AB Introduction: Ankle proprioception training has been found to improve balance-related gait disorders; however, the relationship between ankle proprioception and specific gait patterns in older adults with and without impaired balance has not been systematically examined. Methods: This study characterizes gait patterns of 230 older adults age 60-95 yr evaluated in the Baltimore Longitudinal Study of Aging gait laboratory with (n = 82) and without impaired balance (inability to successfully complete a narrow walk) and examines ankle proprioception performance. Results: Participants with impaired balance had a higher angle threshold for perceiving ankle movement than those without impaired balance even after controlling for the substantial age difference between groups (P = 0.017). Gait speed, stride length, hip and ankle range of motion, and mechanical work expenditure from the knee and ankle were associated with ankle proprioception performance (P < 0.050 for all) in the full sample, but these associations were evident only in participants with impaired balance in stratified analysis. Conclusion: Ankle proprioception in older persons with balance impairment may play a role in balance-related gait disorders and should be targeted for intervention. (C) 2016 American College of Sports Medicine
