摘要
为了探究力竭运动对运动员脑电活动的影响,以19名体育专业大学生为实验对象,用布鲁斯(Bruce)运动方案进行力竭运动,检测其脑电信号。结果:与运动前相比,运动后即刻δ波在CZ、F3、C4显著性增加(P<0.05);θ波在CZ、FPZ显著性增加(P<0.05);β波在FZ、CZ、PZ、F3、F4、FPZ、C3、C4显著性下降(P<0.05);α波在运动后有下降但无显著性差异。经过12h恢复后,次日晨的δ、θ、γ波基本恢复到与运动前一致,但α波与β波的能量均值呈现出持续下降的趋势;次日晨的α波与运动前相比在FZ、PZ、C3、C4有显著性下降(P<0.05),在F4极显著性下降(P<0.01),与运动后相比PZ、F4、C4显著性下降(P<0.05);次日晨的β波与运动前相比在FZ、CZ、PZ、F4、C3、C4显著性下降(P<0.05),在F3、FPZ极显著性下降(P<0.01),与运动后比在F3、FPZ显著性下降(P<0.05)。结论:力竭运动强度引起脑电信号δ波和θ波明显增加,使α波和β波下降,表明大脑皮质抑制,机体产生疲劳,可以作为判断力竭运动疲劳的有效指标;力竭运动后经过12h恢复,大脑皮质的抑制状态进一步增强。
In order to explore the influence of exhaustive exercise on athletesEEG activities,this study took 19 college students majoring in physical education as the experimental objects,and used Bruce exercise program to carry out exhaustive exercise and detect their EEG signals.Compared with before exercise,δwave increased significantly in CZ,F3 and C4(P<0.05),θwave increased significantly in CZ and FPZ(P<0.05),βwave decreased significantly in FZ,CZ,PZ,F3,F4,FPZ,C3 and C4(P<0.05),andαwave decreased with no significant difference after exercise.After 12 hours of recovery,δ,θ,γwaves of the next morning basically recovered to the same level as before,but the energy means ofαwave andβwave showed a continuous downward trend.Theαwave of the next morning decreased significantly in FZ,PZ,C3 and C4(P<0.05),and decreased very significantly in F4(P<0.01).Compared with that after exercise,αwave decreased significantly in PZ,F4 and C4(P<0.05).Compared with that before exercise,βwave of the next morning decreased significantly in FZ,CZ,PZ,F4,C3 and C4(P<0.05),and decreased very significantly in F3 and FPZ(P<0.01).Compared with that after exercise,βwave decreased significantly in F3 and FPZ(P<0.05).The results show thatδwave andθwave of EEG signals caused by exhaustive exercise intensity increase significantly,which decreaseαwave andβwave,indicating that inhibited cerebral cortex and fatigued body could be used as an effective index to judge exhaustive exercise fatigue.After 12 hours of exhaustive exercise,the cerebral cortex inhibition was further enhanced.
作者
杜维平
庞耀辉
马强
纽晓丹
张越
池爱平
DU Wei-ping;PANG Yao-hui;MA Qiang;NIU Xiao-dan;ZHANG Yue;CHI Ai-ping(Physical Education Institute,Shaanxi Normal University,Xian,Shaanxi 710119,China)
出处
《体育研究与教育》
2020年第4期92-96,共5页
Sports Research and Education
关键词
力竭运动
脑电信号
运动疲劳
exhaustive exercise
EEG signals
exercise fatigue
