Background And Objectives: Hand arthritis can limit upper-limb instrumental activities of daily living (IADLs) and require the recruitment of additional cognitive and motor resources to support performance. We devised a dual-task protocol for dishwashing to examine cognitive-motor performance costs and prioritizations under increased demands, processes of adaptation, and individual differences in performance costs.
Research Design And Methods: Sixty women with hand arthritis (aged 60-91) completed a standardized dishwashing protocol.