Why the study?
Few studies have investigated the cardiorespiratory hypothesis with NIRS, and it remains unclear whether training-induced increases in brain blood flow translate into increased cerebral oxygenation.
Does training increase cerebral oxygenation as measured by NIRS to explain the link between physical fitness and cognition?
Does training increase cerebral oxygenation as measured by NIRS to explain the link between physical fitness and cognition?
This mini-review highlights the need for further research using NIRS to understand if training-induced increases in brain blood flow translate to increased cerebral oxygenation and improved cognitive performance.
Answers are grounded in this paper and cite their sources.
Limited NIRS data on the cardiorespiratory hypothesis leaves open its role in executive function; targeted trials needed before practice implications.
The cardiorespiratory hypothesis (CH) is one of the hypotheses used by researchers to explain the relationship between cardiorespiratory fitness and cognitive performance during executive functions. Despite the indubitable beneficial effect of training on brain blood flow and function that may explain the link between physical fitness and cognition and the recognition of the near-infrared spectroscopy (NIRS) as a reliable tool for measuring brain oxygenation, few studies investigated the CH with NIRS. It is still not well understood whether an increase in brain flow by training is translated into an increase in cerebral oxygenation. Thus, the objective of this mini-review was to summarize main results of studies that investigated the CH using the NIRS and to propose future research directions.
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Agbangla et al. (2021) studied this question.
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