Movement of electroencephalogram and plasm .BETA.-endorphin in the aerobic exercise.
- VernacularTitle:有酸素運動における脳波・血中β‐エンドルフィンの動態
- Author:
FUMIKO MIMASA
;
TATSUYA HAYASHI
;
MASASHI SHIBATA
;
YASUHIDE YOSHITAKE
;
YASUFUMI NISHIJIMA
;
TOSHIO MORITANI
- Publication Type:Journal Article
- Keywords:
aerobic exercise;
electoroencephalogram;
β-endorphin
- From:Japanese Journal of Physical Fitness and Sports Medicine
1996;45(5):519-526
- CountryJapan
- Language:Japanese
-
Abstract:
The present study was designed to examine the effects of aerobic exercise on the change of alpha wave component in electroencephalogram (EEG) and plasma β-endorphin. Exercise consisted of 30-min cycling on an ergometer with the load adjusted to elicit a heart rate rise of 50% between resting and predicted maximal value. The EEG signals and blood samples were obtained before and after 30-min exercise. The EEG signal was digitized at a sampling frequency of 64 Hz and analyzed by means of computer-aided decomposition algorithm and frequency power spectral analyses, respectively. The blood samples were immediately centrifuged for 15-min for quantitative analysis of β-endorphin by means of radioimmunoassay method. Results indicated that β-endorphin was significatly (p<.05) greater after exercise as compared to that of the resting contorol. It was also found that the larger the changes in β-endorphin following exercise, the higher the appearance rate of alpha wave in EEG. There was a positive and significant correlation (r=563, p<0.05) between the increase in alpha wave component and that of the plasma β-endorphin. These results suggest that traquilizer effects of aerobic exercise could be explained, at least in part, by the increase of alpha wave component and plasma β-endorphin which in turn bring about the relaxation effects upon the central nervous system.
