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Related Experiment Video

Updated: Sep 3, 2025

Autonomic Function Following Concussion in Youth Athletes: An Exploration of Heart Rate Variability Using 24-hour Recording Methodology
05:48

Autonomic Function Following Concussion in Youth Athletes: An Exploration of Heart Rate Variability Using 24-hour Recording Methodology

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Heart Rate Variability as a Reliable Biomarker Following Concussion: A Critically Appraised Topic.

Brent A Harper1, Daniel G Miner2, Kevin Parcetich2

  • 1Department of Physical Therapy, Chapman University, Irvine, CA,USA.

Journal of Sport Rehabilitation
|July 27, 2022
PubMed
Summary
This summary is machine-generated.

Heart rate variability (HRV) during exertion shows promise as a biomarker for sport-related concussions. Individualized baseline HRV data may aid in assessing autonomic function and guiding return-to-play decisions after concussion.

Keywords:
aerobic exerciseautonomic dysregulationreturn to sport

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Area of Science:

  • Neurology
  • Sports Medicine
  • Cardiology

Background:

  • Conflicting systematic reviews exist on concussion's effect on cardiac autonomic function.
  • Controlled aerobic exercise is a common concussion recovery intervention.
  • Objective metrics for exertional return-to-play protocols post-concussion are lacking.

Purpose of the Study:

  • To determine if heart rate variability (HRV) during physical exertion can serve as a reliable biomarker over time for individuals with sport-related concussions.

Main Methods:

  • Literature search identifying 3 relevant studies.
  • Analysis of prospective-matched control group, cross-sectional cohort, and prospective longitudinal case-control studies.
  • Evaluation of HRV during physical exertion in athletes with and without concussion history.

Main Results:

  • Studies indicate HRV disturbances during exertion in concussed individuals, persisting even after symptom resolution.
  • HRV differences were observed between those with and without concussion history, potentially influenced by age and sex.
  • Exertional HRV was found to be more clinically meaningful than resting HRV, which improved over time post-concussion.

Conclusions:

  • Emerging evidence supports HRV as a biomarker for autonomic function during exertion post-concussion.
  • The clinical utility of HRV data is individualized and not yet generalizable.
  • Pre-injury baseline HRV assessments are recommended for individualized comparison and improved clinical decision-making for return-to-play.