Key result
Exercise intensities of ≥80% of heart rate reserve were associated with declines in executive function and prefrontal cortex oxygenation in Reserve Officers' Training Corps cadets.
Why the study?
Does graded exercise affect executive functioning and prefrontal cortex oxygenation in Reserve Officers' Training Corps cadets?
Observational
Does graded exercise affect executive functioning and prefrontal cortex oxygenation in Reserve Officers' Training Corps cadets?
High-intensity exercise (≥80% heart rate reserve) impairs executive function and reduces prefrontal cortex oxygenation in ROTC cadets.
High-intensity exercise may impair executive function in cadets; hypothesis-generating and leaves open effects on performance or training protocols.
The executive functioning aspect of cognition was evaluated during graded exercise in Reserve Officers' Training Corps cadets. Executive function declined at exercise intensities of ≥80% of heart rate reserve. The decline in executive function was coupled with declines in the oxygenation of the prefrontal cortex, the brain region responsible for executive functioning. These data define the executive function-exercise intensity relationship and provide evidence supporting the reticular activation hypofrontality theory as a model of cognitive change.
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Stone et al. (2020) conducted an observational in Healthy Reserve Officers' Training Corps cadets. Graded exercise (≥80% of heart rate reserve) vs. Lower exercise intensities was evaluated on Executive functioning and prefrontal cortex oxygenation. Exercise intensities of ≥80% of heart rate reserve were associated with declines in executive function and prefrontal cortex oxygenation in Reserve Officers' Training Corps cadets.
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