Narrative review: aerobic exercise, executive function and assumed real-world decision-making in healthy older adults
This narrative review of the last decade's studies in healthy older adults reports that chronic aerobic and combined physical-cognitive training improved executive functions linked to decision-making and correlated with prefrontal neural changes. However, no reviewed study directly assessed decision-making under ecologically valid conditions, so better real-world decisions remain assumed. [1]
Automatic summary · not editorially reviewed
The key findings
The narrative review examines studies from the last decade on aerobic and combined physical-cognitive training in healthy older adults, focusing on decision-making and associated neural changes. [1]
Chronic interventions of 6 months to 2 years improved executive functions closely related to decision-making, and these gains correlated with prefrontal neural adaptations. [1]
None of the reviewed studies directly assessed decision-making under ecologically valid conditions, so improved real-world decision-making remains largely assumed. [1]
The source at a glance
- Study type / format
- Narrative review (abstract only)
- Population / context
- Healthy older adults in studies from the last decade.
- Summary based on
- Study abstract
- Original publication
- August 26, 2026
Review question on exercise and decision-making
As populations age, cognitive decline often shows up as problems in decision-making processes, and aerobic exercise has been proposed as a promising way to protect brain health. The review asks whether gains on executive function (EF) tasks really reflect better decision-making capacity, or only narrower changes in neural efficiency and network specificity. It covers studies from the last decade on aerobic and combined physical-cognitive training in healthy older adults, focusing on decision-making and related neural changes. The authors note that heterogeneous protocols have limited efforts to standardize interventions and assess long-term impact.
Supporting source [1]
Executive function gains and prefrontal correlates
The review reports that chronic interventions lasting 6 months to 2 years improved EF closely related to decision-making, including cognitive flexibility, task switching and attentional control. These behavioral gains correlated with neural adaptations in the prefrontal cortex (PFC), including improved cerebral oxygenation and preserved white matter microstructure when exercise was sustained over time. At the molecular level, sustained aerobic activity was associated with increased VEGFR2 and Cathepsin B and decreased BDNF expression, which the authors describe as suggesting systemic plasticity processes that may contribute to cortical integrity. These are associations, not proof that exercise causes better decisions.
Supporting source [1]
Real-world decision-making remains untested
The authors conclude that long-term, multimodal interventions combining physical, cognitive and social components could support durable neurobiological adaptations and decision-making. Yet across the reviewed studies, none directly assessed decision-making under ecologically valid conditions, so improved performance in real-world decision-making remains largely assumed. The authors argue the field should move beyond descriptive summaries of cognitive gains toward a framework separating what has been measured, what has been inferred and what remains to be proven, especially whether exercise-induced neural changes generalize to everyday decisions.
Supporting source [1]
How to interpret this
This is an abstract of a narrative review; the full text was not reviewed. The abstract reports no sample sizes, study designs or effect sizes for the reviewed studies, and the molecular findings (VEGFR2, Cathepsin B, BDNF) are described as associations. No reviewed study measured real-world decision-making, so benefits there are inferred, not demonstrated.
Based on the study abstract; the full paper, tables and supplementary data were not reviewed.
Source & supporting passages
Cortés Silva JA, Davis CA, Lievano Parra D, González VV. · europepmc.org · August 26, 2026