机构：[a]College of Life and Bioengineering, Beijing University of Technology, Beijing, China[b]Medical Engineering Division, Xuanwu Hospital, Capital Medical University, Beijing, China首都医科大学宣武医院[c]State Intellectual Property Office of the PRC, Beijing, China
OBJECTIVE: To investigate the effect of force level and fatigue on brain activity during handgrip tasks. METHODS: Electroencephalography (EEG) signals were recorded from eleven healthy male subjects when they performed 25%, 50% and 75% maximal voluntary contraction (MVC), and were in fatigue state. EEG powers in different handgrip tasks were analyzed in the frequency domain and time domain respectively. RESULTS: The EEG power at 25% MVC was significantly lower than that at 75% MVC in gamma band (p < 0.05) for electrode C3, C4, Cz, Pz and Fz. EEG power at 25% MVC was also significantly lower than that at 75% MVC in beta band (p < 0.05) for electrode C3. However, the handgrip force level and fatigue did not affect the EEG powers for the other frequencies and electrodes (p > 0.05). CONCLUSION: The results suggest that handgrip force level may modulate the brain activity in certain frequency bands and cortical regions. EEG power is a useful tool to characterize the motor state.
基金：
Beijing Natural Science Foundation (7132028&7132021)
the National Natural Science Foundation of China (81441053).
语种：
外文
被引次数：
WOS：
PubmedID：
中科院(CAS)分区：
出版当年[2014]版：
大类|4 区医学
小类|4 区工程：生物医学4 区卫生保健与服务
最新[2023]版：
大类|4 区医学
小类|4 区工程：生物医学4 区卫生保健与服务
JCR分区：
出版当年[2013]版：
Q4HEALTH CARE SCIENCES & SERVICESQ4ENGINEERING, BIOMEDICAL
最新[2023]版：
Q3HEALTH CARE SCIENCES & SERVICESQ4ENGINEERING, BIOMEDICAL
第一作者机构：[a]College of Life and Bioengineering, Beijing University of Technology, Beijing, China
通讯作者：
通讯机构：[*1]College of life and Bioengineering, Beijing University of Technology, Beijing 100124, China.
推荐引用方式(GB/T 7714)：
Liu Cao,Dongmei Hao,Yao Rong,et al.Investigating the modulation of brain activity associated with handgrip force and fatigue[J].TECHNOLOGY AND HEALTH CARE.2015,23:S427-S433.doi:10.3233/THC-150979.
APA：
Liu Cao,Dongmei Hao,Yao Rong,Yanan Zhou,Mingai Li&Yunqing Tian.(2015).Investigating the modulation of brain activity associated with handgrip force and fatigue.TECHNOLOGY AND HEALTH CARE,23,
MLA：
Liu Cao,et al."Investigating the modulation of brain activity associated with handgrip force and fatigue".TECHNOLOGY AND HEALTH CARE 23.(2015):S427-S433
