Akeren, ZahideHintistan, Sevilay2026-02-282026-02-2820242542-4823https://doi.org/10.1177/25424823241284500https://hdl.handle.net/20.500.12403/6091Background: Mild cognitive impairment can be considered as the preclinical stage of Alzheimer's disease. With the addition of COVID-19 disease to the cognitive decline that occurs with aging, it may cause dementia with severe cognitive losses such as Alzheimer's disease in some people. Physical activity and brain-occupying practices can significantly improve the risk factors for cognitive disorders and Alzheimer's disease. Objective: The aim of study was to examine the effect of green walking and intelligence game on the cognitive skills of individuals aged 50-70 years with COVID-19. Methods: The randomized controlled study was completed with 40 individuals, 20 in the experimental and 20 in the control group. Individuals in the experimental group green walking for 30min three days a week for one month in two groups of 10 people, accompanied by the researcher. In addition, these individuals played intelligence games (brain games-memory thinking and brain exercise) via their smartphones for 15min every day for a month. Results: The cognitive skills and cognitive dimensions of attention, concentration, memory, language and orientation of the individuals in the experimental group were significantly increased compared to the control group individuals (p<0.05). Conclusions: It was found that green walk and intelligence game practice increased the cognitive skills of individuals aged 50-70 years who had outpatient COVID-19.eninfo:eu-repo/semantics/openAccessAlzheimer's diseaseattentionCOVID-19intelligencememorynaturewalkingArticle811394140410.1177/2542482324128450040034357WOS:001458443200003Q3