Association between muscle damage and head impacts in high school American Football
Deutscher übersetzter Titel: | Assoziation zwischen Muskelschaden und Kopfaufprall im American Football der High School |
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Autor: | Huibregtse, Megan E.; Zonner, Steven W.; Ejima, Keisuke; Bevilacqua, Zachary W.; Newman, Sharlene D.; Macy, Jonathan T.; Kawata, Keisuke |
Erschienen in: | International journal of sports medicine |
Veröffentlicht: | 41 (2020), 1, S. 36-43, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0172-4622, 1439-3964 |
DOI: | 10.1055/a-1021-1735 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU202001000401 |
Quelle: | BISp |
Abstract des Autors
Subconcussive head impacts (SHI), defined as impacts to the cranium that do not result in concussion symptoms, are gaining traction as a major public health concern. The contribution of physiological factors such as physical exertion and muscle damage to SHI-dependent changes in neurological measures remains unknown. A prospective longitudinal study examined the association between physiological factors and SHI kinematics in 15 high school American football players over one season. Players wore a sensor-installed mouthguard for all practices and games, recording frequency and magnitude of all head impacts. Serum samples were collected at 12 time points (pre-season, pre- and post-game for five in-season games, and post-season) and were assessed for an isoenzyme of creatine kinase (CK-MM) primarily found in skeletal muscle. Physical exertion was estimated in the form of excess post-exercise oxygen consumption (EPOC) from heart rate data captured during the five games. Mixed-effect regression models indicated that head impact kinematics were significantly and positively associated with change in CK-MM but not EPOC. There was a significant and positive association between CK-MM and EPOC. These data suggest that when examining SHI, effects of skeletal muscle damage should be considered when using outcome measures that may have an interaction with muscle damage.