Physical exercise was directly associated with cognitive frailty and also indirectly associated with it through self-efficacy, with the indirect (mediated) effect accounting for 35.17% of the total effect among community-dwelling older adults.
Key Findings
Results
The prevalence of cognitive frailty among community-dwelling older adults in the study sample was 21.3%.
Study recruited community-dwelling older adults from nine communities in Henan Province, China.
Data were collected from January to May 2026 using a cross-sectional convenience sampling design.
570 questionnaires were distributed; 563 valid questionnaires were retained after excluding invalid responses.
Cognitive frailty was assessed using a combination of the Fried Phenotype (FP) for frailty and the Montreal Cognitive Assessment (MoCA) for cognitive function.
Results
Self-efficacy significantly mediated the association between physical exercise and cognitive frailty, accounting for 35.17% of the total effect.
Mediation analysis was conducted using SPSS 27.0 and R software.
The indirect effect of physical exercise on cognitive frailty via self-efficacy represented 35.17% of the total effect.
Physical exercise was both directly and indirectly (through self-efficacy) associated with cognitive frailty.
Self-efficacy was measured using the General Self-Efficacy Scale (GSES) and physical exercise was measured using the Physical Activity Rating Scale-3 (PARS-3).
Results
Multiple sociodemographic and lifestyle factors were significantly associated with cognitive frailty in univariate analysis.
Factors significantly associated with cognitive frailty included age, marital status, education level, smoking, drinking, average monthly income, sleep quality, and chronic diseases (p < 0.05).
Subjective cognitive decline (SCD) was also significantly associated with cognitive frailty (p < 0.05).
Physical exercise score and self-efficacy score were each significantly associated with cognitive frailty (p < 0.05).
Analysis was conducted using a general information questionnaire alongside validated scales.
Results
Physical exercise had a direct association with cognitive frailty independent of the mediating role of self-efficacy.
The total effect of physical exercise on cognitive frailty included both a direct component and an indirect component mediated by self-efficacy.
The direct effect accounted for approximately 64.83% of the total effect (the remainder after the 35.17% mediation proportion).
The study design was cross-sectional, limiting causal inference.
Physical exercise was quantified using the Physical Activity Rating Scale-3 (PARS-3).
What This Means
This research suggests that among older adults living in the community in Henan Province, China, more than 1 in 5 people (21.3%) had cognitive frailty — a condition combining both physical frailty and mild cognitive impairment. The study found that older adults who engaged in more physical exercise were less likely to have cognitive frailty, and this relationship worked through two pathways: a direct link between exercise and lower cognitive frailty, and an indirect link where exercise appeared to boost self-efficacy (a person's belief in their own ability to succeed and manage challenges), which in turn was associated with lower cognitive frailty. The indirect pathway through self-efficacy accounted for about 35% of exercise's total association with cognitive frailty.
Several other factors were also linked to cognitive frailty, including older age, lower education, lower income, poor sleep quality, smoking, drinking, having chronic diseases, and experiencing subjective cognitive decline (noticing memory or thinking problems oneself). These findings highlight that cognitive frailty is relatively common in this population and that both physical and psychological factors play a role.
This research suggests that interventions targeting physical exercise among older adults may help reduce cognitive frailty not only through direct physical benefits but also by strengthening older adults' confidence in their own abilities. Programs designed to promote both physical activity and self-efficacy in community settings could potentially be beneficial for this population. However, because this was a cross-sectional study (a snapshot in time), it cannot prove that exercise causes reductions in cognitive frailty — only that the two are associated.
Check Your Own Numbers
Upload your bloodwork. We'll cross-reference your results against this study and 4,700 others.
Liang D, Jia R, Wu Z, Fan T, Pan Y. (2026). Association between physical exercise and cognitive frailty among community-dwelling older adults: the mediating role of self-efficacy.. Frontiers in public health. https://doi.org/10.3389/fpubh.2026.1903378