지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.2
- 수록면
- 429 - 440 (12page)
- DOI
- 10.51979/KSSLS.2019.02.75.429
이용수
초록· 키워드
오류제보하기
Purpose: The cerebral blood flow velocity (CBFV) response to acute hypoxia has been known to increase. But, how CBFV might respond to exercise in hypoxic condition and how it is associated with EEG remains unclear. The purpose of this study is to determine the effect of hypoxia on electroencephalographic activity during and after cycle ergometer exercise.
Method: In a randomized, double-blind, crossover study, twelve healthy volunteers (21.4±0.7yrs) were asked to perform the bicycle ergometer exercise twice in hypoxic condition and control (sea level) condition with a week interval, respectively. Exercise intensity was set initially at 50W and increased by 25W every 2 minutes until 125W, then maintained at 125W for 14 minutes. Acute normobaric hypoxic condition corresponding to the altitudes of 3150m was maintained using low oxygen gas mixture for the whole procedure of 60 minutes. EEG was measured prior to the onset of exercise, immediately after exercise and 20 minutes recovery. EEG signal was recorded from 6 scalp sites (frontal, temporal and occipital lobe of the international 10-20 system) leading to analysis of theta (4-7Hz), alpha (8-13Hz), beta (13-30Hz), and gamma(30-50Hz) relative activities. All data were analyzed using two-way ANOVA with repeated measures.
Results: Alpha wave activity of frontal lobe in hypoxia group was significantly lower than in control group immediately after exercise (0.24±0.13 vs. 0.41±0.15 ㎶, p<.05). Beta wave activity of occipital lobe in hypoxia group was significantly higher than in control group immediately after exercise (0.28±0.07 vs. 0.20±0.07 ㎶, p<.05). Gamma wave activity of frontal lobe in hypoxia group was significantly higher than in control group immediately after exercise (0.25±0.12 vs. 0.12±0.08 ㎶, p<.05). Theta wave activity of left frontal lobe in hypoxia group was significantly lower than in control group at 20 minutes recovery (0.08±0.05 vs. 0.15±0.05 ㎶, p<.05).
Conclusion: These results suggest that acute exposure to mild hypoxic condition may amplify the change of EEG activities which has been commonly observed during exercise.
Method: In a randomized, double-blind, crossover study, twelve healthy volunteers (21.4±0.7yrs) were asked to perform the bicycle ergometer exercise twice in hypoxic condition and control (sea level) condition with a week interval, respectively. Exercise intensity was set initially at 50W and increased by 25W every 2 minutes until 125W, then maintained at 125W for 14 minutes. Acute normobaric hypoxic condition corresponding to the altitudes of 3150m was maintained using low oxygen gas mixture for the whole procedure of 60 minutes. EEG was measured prior to the onset of exercise, immediately after exercise and 20 minutes recovery. EEG signal was recorded from 6 scalp sites (frontal, temporal and occipital lobe of the international 10-20 system) leading to analysis of theta (4-7Hz), alpha (8-13Hz), beta (13-30Hz), and gamma(30-50Hz) relative activities. All data were analyzed using two-way ANOVA with repeated measures.
Results: Alpha wave activity of frontal lobe in hypoxia group was significantly lower than in control group immediately after exercise (0.24±0.13 vs. 0.41±0.15 ㎶, p<.05). Beta wave activity of occipital lobe in hypoxia group was significantly higher than in control group immediately after exercise (0.28±0.07 vs. 0.20±0.07 ㎶, p<.05). Gamma wave activity of frontal lobe in hypoxia group was significantly higher than in control group immediately after exercise (0.25±0.12 vs. 0.12±0.08 ㎶, p<.05). Theta wave activity of left frontal lobe in hypoxia group was significantly lower than in control group at 20 minutes recovery (0.08±0.05 vs. 0.15±0.05 ㎶, p<.05).
Conclusion: These results suggest that acute exposure to mild hypoxic condition may amplify the change of EEG activities which has been commonly observed during exercise.
목차
Ⅰ. 서론
Ⅱ. 연구방법
Ⅲ. 결과
Ⅳ. 논의
Ⅴ. 결론 및 제언
참고문헌
ABSTRACT
참고문헌 (0)
참고문헌 신청이 논문의 저자 정보
이 논문과 함께 이용한 논문
최근 본 자료
댓글(0)
0
UCI(KEPA) : I410-ECN-0101-2019-692-000500024