Introduction
It is estimated that 22% of the world’s population will be people aged 60 years and older by 2050 [Based on the guided plasticity facilitation framework, combined cognitive and physical training has been designed to enhance cognitive abilities [Numerous studies on SCET have adopted multicomponent interventions, which have shown promising results in improving cognitive function in older adults with and without CI [Dual task paradigm is a procedure in which an individual is required to simultaneously perform two tasks, and each task involves a distinct goal [Cognition in dual task performance involves executive functions (EFs), a collection of top-down cognitive control processes [To assess meaningful and observed changes following an intervention, the degree of beneficial effect must be determined and is usually indicated by responsiveness and minimal clinically important difference (MCID). Responsiveness is defined as the ability of a measure to detect a change in a construct that is being assessed over a specific period [While there have been studies that examine dual task walking performance after training, no studies have estimated the responsiveness and MCID of dual tasks involving hand function or walking post-intervention in any population. On the other hand, MCID estimates of a measure may vary across populations with differing levels of cognitive function [The aims of this study were to (1) establish the responsiveness and MCID of dual task performance involving cognition and hand function for older adults with and without CI following SCET, and (2) compare the differences in responsiveness and MCID of dual task performance involving cognition and hand function between older adults with and without CI following SCET.