Differential Effects of Exercise Intensity on Brain Activity Assessed by Functional Near-Infrared Spectroscopy: A Systematic Review

Hyo Sil Kang; Chang Sik An; Hyo Jeong Kang; Jeong-Lae Kim

doi:10.61707/jd7r7349

Authors

Hyo Sil Kang Department of Physical Therapy, Eulji University, Seongnam, Korea
Chang Sik An Department of Physical Therapy, Eulji University, Seongnam, Korea
Hyo Jeong Kang Department of Physical Therapy, Cheongam College, Suncheon, Korea
Jeong-Lae Kim Department of Biomedical Engineering, Eulji University, Seongnam, Korea

DOI:

https://doi.org/10.61707/jd7r7349

Keywords:

Exercise, Functional Near-Infrared Spectroscopy (fNIRS), Intensity, Cognition, Physical Activity

Abstract

The present systematic review aimed to provide a comprehensive understanding of the relationship between the intensity of physical activity and brain activity measured using functional near-infrared spectroscopy (fNIRS). Following the Preferred Reporting Items for Systematic Review and Meta-Analyses guidelines, studies investigating the effect of exercise intensity on brain activity were selected and summarized. Inclusion criteria were as follows: randomized controlled trial design; an adult population; physical activity; and evaluation of the effectiveness of fNIRS in assessing cognition. 11 studies were included in the analysis, 2 of which examined light-intensity exercise, 3 of which examined moderate-intensity exercise, 3 of which examined high-intensity exercise, and 3 of which compared brain activity across different intensities. Synthesis of the literature provides valuable insights into the intersection of physical activity, brain activity, and fNIRS, and contributes to a comprehensive understanding of this multifaceted relationship.