Background: Dementia currently impacts approximately 55 million individuals globally, its prevalence continues to rise. Some studies have shown that physical exercise may have certain effects on patients' physical functions and quality of life. However, more scientific evidence is still needed for evaluation and analysis additional empirical validation through analysis remains necessary to guide effective intervention protocols.Aim: The aim of the literature review will be to describe the influence of the physical exercise in older PwD.Methods: This study is a descriptive review of studies on the effects of physical exercise on elderly dementia patients conducted between 2014 and 2024. PubMed Is the main database for literature search, by searching the keywords, we selected 14 articles. We used NolaJ.Pender's Health Promotion Model to guide the analysis.Findings: Exercise interventions demonstrated multifaceted benefits for dementia patients.-Structured home and multimodal exercises improved executive function, reduced falls and slowed the decline in cognitive function.-Physical health benefits included reduced fall-related injuries and comparable nutritional improvements from exercise/social activities.-Quality of life improved via daily living skills, gait speed , and vitality.-Intervention efficacy correlated with adherence, with personalized, high-compliance strategies yielding optimal outcomes, while individual factors moderated effects.Conclusion: Physical activity improves cognitive function, health, reduces fall risk and improves quality of daily life in older adults with dementia. Effects varied by method and duration, were more pronounced with short-term interventions, and long-term cognitive gains remained limited. Although high-intensity training showed minimal cognitive impact, it reduced fall-related injuries. Compliance and intervention type critically influenced outcomes, with higher adherence correlating to better functional improvements. Socially engaging activities and personalized approaches enhanced physical and emotional well-being, while individual characteristics moderated intervention efficacy. Future research should focus on standardized, individualized approaches and long-term interventions that take into account subject compliance to maximize benefits.