Dual-task effects on locomotor savings in aging
Mulvey, M. E.; Choi, J. T.
Show abstract
Healthy young and older adults completed two randomized sessions of split-belt treadmill walking, with and without a concurrent cognitive task. When the single-task session occurred first, both age groups showed savings in step length asymmetry during re-adaptation one week later. However, performing the dual-task session first reduced savings, and this order-effect was greater in older adults compared to young adults. These findings suggest that cognitive load during initial motor adaptation interferes with savings, but once stored, locomotor readaptation is resilient to dual-tasking.
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