Spectral analysis of electroencephalography changes after choking in judo (juji-jime)
In: Medicine and science in sports and exercise, Jg. 30 (1998), Heft 9, S. 1356-1362
Online
academicJournal
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Zugriff:
Purpose: 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 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.
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Spectral analysis of electroencephalography changes after choking in judo (juji-jime)
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Autor/in / Beteiligte Person: | RAU, R ; RASCHKA, C ; BRUNNER, K ; BANZER, W |
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Zeitschrift: | Medicine and science in sports and exercise, Jg. 30 (1998), Heft 9, S. 1356-1362 |
Veröffentlichung: | Hagerstown, MD: Lippincott Williams & Wilkins, 1998 |
Medientyp: | academicJournal |
Umfang: | print, 20 ref |
ISSN: | 0195-9131 (print) |
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