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The effects of physical exercise on parahippocampal function.

P D Loprinzi1

  • 11 Exercise & Memory Laboratory, Department of Health, Exercise Science and Recreation Management, The University of Mississippi , University, MS, USA.

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Summary

Physical exercise significantly impacts parahippocampal function in both humans and animals. Regular activity enhances neural excitability, brain volume, and connectivity within the parahippocampal gyrus.

Keywords:
BDNFcardiorespiratory fitnessexercisegray mattermemoryphysical activitysedentary behaviorsynaptic plasticitywhite matter

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Area of Science:

  • Neuroscience
  • Exercise Science
  • Cognitive Function

Background:

  • The parahippocampal gyrus is crucial for memory formation and spatial navigation.
  • Understanding how external factors like physical exercise influence this brain region is vital for cognitive health.

Purpose of the Study:

  • To systematically review and synthesize the existing research on the effects of physical exercise on parahippocampal function.
  • To consolidate findings from both human and animal studies.

Main Methods:

  • A comprehensive literature search was conducted across major scientific databases (PubMed, PsychInfo, Sports Discus, Google Scholar).
  • Inclusion criteria were applied to 28 selected articles, comprising 20 human and 8 animal studies.
  • Studies examined various aspects of parahippocampal function, including neural activity, brain volume, glucose metabolism, and functional connectivity.

Main Results:

  • Physical exercise demonstrated widespread positive effects on parahippocampal function across both human and animal models.
  • Observed benefits included increased neural excitability, gray/white matter volume, and glucose metabolism.
  • Enhanced cerebral blood flow, synaptic plasticity, and functional connectivity with adjacent brain structures were also noted.

Conclusions:

  • Physical exercise exerts extensive and beneficial effects on the parahippocampal gyrus.
  • These findings highlight exercise as a potential non-pharmacological intervention for supporting parahippocampal health and cognitive function.