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February 28, 2023Exercise ScienceOpen Access

Application of a NIRS Neuroimaging Method to Elucidate Neural Mechanisms of Exercise-cognition Interaction

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Key result

NIRS neuroimaging studies demonstrate that higher physical activity levels and longitudinal exercise interventions improve executive function and induce functional changes in the prefrontal cortex.

Why the study?

The basic principles, appropriate experimental conditions to eliminate exercise-induced contaminations, and recent studies needed to be summarized before applying NIRS to exercise-cognition research.

Does exercise improve executive function and alter prefrontal cortical activation measured by NIRS in adults?

Design

Literature review

Authors

KBKyeongho ByunIncheon National University

Discussion

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Implication

Exercise may support cognitive health via prefrontal changes; leaves open causal confirmation and optimal protocols in randomized trials.

Structured PICO

Does exercise improve executive function and alter prefrontal cortical activation measured by NIRS in adults?

P
Population
Adults (young and older) evaluated for exercise-cognition interaction
I
Intervention
Exercise or physical activity
C
Comparator
Lower physical activity or inactive controls
O
Outcome
Executive function and prefrontal cortical activation measured by NIRSsurrogate

NIRS neuroimaging demonstrates that exercise improves executive function, with cross-sectional studies showing increased prefrontal activation and longitudinal studies suggesting improved neural efficiency.

Limitations

  • NIRS cannot measure absolute hemoglobin concentration.
  • Light penetration is limited to the outer cerebral cortex, making it impossible to measure deep brain structures like the hippocampus.
  • Body movement and exercise-induced systemic blood flow changes can cause noise and affect the baseline hemoglobin signal, limiting its use during vigorous exercise.
  • NIRS is susceptible to motion artifacts and systemic blood flow changes during exercise, requiring careful experimental control.

Cite This Study

Kyeongho Byun (2023) conducted a review in Cognitive function. Exercise or physical activity vs. Inactive control or lower physical activity was evaluated. NIRS neuroimaging studies demonstrate that higher physical activity levels and longitudinal exercise interventions improve executive function and induce functional changes in the prefrontal cortex.

synapsesocial.com/papers/6a1c7a7e66d062ff2dc3dbc2https://doi.org/10.15857/ksep.2023.32.1.11
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