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Daily Heart Rate Variability before and after Concussion in an American College Football Player

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dc.contributor.authorFlatt, Andrew A.
dc.contributor.authorWilkerson, Gary B.
dc.contributor.authorAllen, Jeff R.
dc.contributor.authorKeith, Clay M.
dc.contributor.authorEsco, Michael R.
dc.contributor.otherUniversity of Alabama Tuscaloosa
dc.contributor.otherUniversity of Tennessee at Chattanooga
dc.date.accessioned2023-09-28T19:38:09Z
dc.date.available2023-09-28T19:38:09Z
dc.date.issued2019
dc.description.abstractThis case report demonstrates the effects of sport-related concussion (SRC) on heart rate variability (HRV) in an American college football player. Daily measures of resting, ultra-short natural logarithm of the root mean square of successive differences (LnRMSSD), subjective wellbeing, and Player Load were obtained each training day throughout a 4-week spring camp and 4 weeks of preseason training. SRC occurred within the first 2 weeks of the preseason. During spring camp and preseason pre-SRC, the athlete demonstrated minimal day-to-day fluctuations in LnRMSSD, which increased post-SRC (LnRMSSD coefficient of variation pre-SRC 3.1%, post-SRC = 5.8%). Moderate decrements in daily-averaged LnRMSSD were observed post-SRC relative to pre-SRC (Effect Size +/- 90% Confidence Interval = -1.12 +/- 0.80), and the 7-day rolling average fell below the smallest worthwhile change for the remainder of the preseason. LnRMSSD responses to SRC appeared similar to trends associated with stress and training fatigue. Therefore, performance and sports medicine staff should maintain regular communication regarding player injury and fatigue status so that HRV can be interpreted in the appropriate context. Detection and monitoring of autonomic dysregulation post-SRC may require near-daily assessment, as LnRMSSD showed greater daily fluctuations rather than chronic suppression following the head injury.en_US
dc.format.mediumelectronic
dc.format.mimetypeapplication/pdf
dc.identifier.citationFlatt, A. A., Wilkerson, G. B., Allen, J. R., Keith, C. M., & Esco, M. R. (2019). Daily Heart Rate Variability before and after Concussion in an American College Football Player. In Sports (Vol. 7, Issue 5, p. 97). MDPI AG. https://doi.org/10.3390/sports7050097
dc.identifier.doi10.3390/sports7050097
dc.identifier.orcidhttps://orcid.org/0000-0001-8433-7329
dc.identifier.orcidhttps://orcid.org/0000-0003-2998-8537
dc.identifier.urihttps://ir.ua.edu/handle/123456789/11648
dc.languageEnglish
dc.language.isoen_US
dc.publisherMDPI
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectautonomic
dc.subjectcardiac-parasympathetic
dc.subjecttraumatic brain injury
dc.subjectsports medicine
dc.subjectsports science
dc.subjectSPORTS CONCUSSION
dc.subjectEXERCISE
dc.subjectCONNECTIVITY
dc.subjectRELIABILITY
dc.subjectADAPTATION
dc.subjectRESPONSES
dc.subjectMARKERS
dc.subjectSYSTEM
dc.subjectTIME
dc.subjectTERM
dc.subjectSport Sciences
dc.titleDaily Heart Rate Variability before and after Concussion in an American College Football Playeren_US
dc.typeArticle
dc.typetext

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