Physical activity and functional status in older adults: Mediating effect of cognitive function

Background Older adults who participate in social activities have more active lifestyles which has been shown to improve their quality of life (Acree et al., 2006). Generally instrumental daily living (IADL) require aspects participation (e.g., cooking and managing finances) (Guo & Sapra, 2020). A previous study reported that physical cognitive functions are positively associated with functional status IADLs (Yam Marsiske, 2013). In addition, since activity is function, recommended maintain function. While a number studies investigated the relationship between activity, IADL, it not clear if function acts as mediator equation. The aim this was examine IADL clarify mediating effect Method retrospective cross-sectional design analyzed association effects We retrieved 3,980 people from 6 million recipients eligible for Korean health insurance benefits, years 2002 2015. included analysis 60 older completed questionnaire. estimated indirect through on performance. Result average age participants 81.6 (SD = 5.5), 72.74% were female. There direct high-intensity exercise (β 0.04, 95% CI: 0.01, 0.07) an 0.05; 0.07). there moderate-intensity Conclusion indicated positive relationships activities, IADL.