Exergame and Balance Training Modulate Prefrontal Brain Activity during Walking and Enhance Executive Function in Older Adults
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Summary
This study investigated whether exercise training induces functional brain plasticity during walking and improves executive function in older adults. While previous research linked exercise to cognitive improvements via brain changes during static tasks, it remained unclear if similar adaptations occur during dynamic, real-life activities like walking. The researchers hypothesized that cognitive-motor video game dancing would reduce prefrontal cortex (PFC) oxygenation during walking more than conventional balance training, and that these neural changes would correlate with enhanced executive functions. The study was a randomized controlled trial involving 42 elderly participants (mean age 74.9 years) assigned to either an 8-week interactive cognitive-motor video game dancing intervention (DANCE) or a conventional balance and stretching program (BALANCE). Both groups trained three times weekly for 30 minutes. Prefrontal cortex activity was measured using functional near-infrared spectroscopy (fNIRS) during treadmill walking at preferred and fast speeds, both before and after the intervention. Executive functions, including shifting, inhibition, and working memory, were assessed using standardized neuropsychological tests. Thirty-three participants completed the study. Results indicated that both interventions significantly reduced left and right hemispheric PFC oxygenation during the acceleration phase of walking. However, the DANCE group exhibited a larger reduction in left PFC activity at the end of the walking task compared to the BALANCE group. Crucially, these training-induced reductions in PFC activity correlated with improvements in executive functions. The findings suggest that exercise training, particularly cognitive-motor training, modulates brain activity during locomotion, potentially releasing cognitive resources that can be allocated to other processes. The significance of these findings lies in the demonstration that exercise can induce functional brain plasticity during complex motor tasks, not just static cognitive tests. The observed reduction in PFC activity implies increased neural efficiency, which may support better mobility and falls prevention in older adults by freeing up attentional resources. This study provides evidence linking exercise training, brain function during walking, and cognitive performance, highlighting the potential of interactive cognitive-motor exercises as a tool for enhancing both physical and cognitive health in the elderly.
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| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | OpenAlex-citations | — | — | 1 | 2026-06-17 |
| archive | success | unpaywall | — | — | 2 | 2026-06-25 |
| extract | success | cached | — | — | 2 | 2026-06-26 |
| clean | success | clean | — | — | 1 | 2026-06-18 |
| chunk | success | chunk | — | — | 1 | 2026-06-18 |
| embed | success | embed | Qwen/Qwen3-Embedding-8B | — | 1 | 2026-06-18 |
| promote | success | — | — | — | 1 | 2026-06-17 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 1 | 2026-06-26 |
| tag | success | vector_similarity | — | — | 6 | 2026-06-18 |
| verify | success | — | — | — | 1 | 2026-06-26 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-26; verification: verified.
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