Spectral analysis of electroencephalography changes after choking in judo (juji-jime)
| Deutscher übersetzter Titel: | Spektralanalyse der elektroenzephalographischen Veränderungen nach Würgegriff im Judo (juji-jime) |
|---|---|
| Autor: | Rau, Rüdiger; Raschka, Christoph; Brunner, Kay; Banzer, Winfried |
| Erschienen in: | Medicine and science in sports and exercise |
| Veröffentlicht: | 30 (1998), 9, S. 1356-1362, Lit. |
| Format: | Literatur (SPOLIT) |
| Publikationstyp: | Zeitschriftenartikel |
| Medienart: | Gedruckte Ressource |
| Sprache: | Englisch |
| ISSN: | 0195-9131, 1530-0315 |
| Schlagworte: | |
| Online Zugang: | |
| Erfassungsnummer: | PU199810305089 |
| Quelle: | BISp |
Abstract des Autors
The present study was carried out to investigate possible electroencephalographic changes induced by choking in judo (shime-waza) by means of spectral analysis and brain mapping. Methods: Power spectral changes in electroencephalography (EEG) were recorded in six experienced judoka who underwent a choking trial with a "shime-waza choking" technique called juji-jime. Results: A significant increase of global field power in the delta- and theta-range occurred, while physiological alpha-power decreased. These changes in the low-frequency range reached a statistically significant level within a time span up to 20 s after choking, which was performed at an average choking time of 8 s. In no case did choking provoke neuropsychological symptoms. Yet, spectral EEG-analysis revealed subclinical changes of brain function. Conclusions: Choking in judo may induce subclinical electroencephalographic perturbations. The extent and duration can be objectified by means of spectral analysis of EEG data, global field power computation, and brain-mapping representation. Verf.-Referat