The Impact of Handstand Training on the Nonlinear Parameters of EEG and Brain Function about Excellent Archers

The research is aimed at discussing the recovery of athletes' central nerves in shooting and archery events, which is based on the theories and methods on various changes of human body in handstand position.24excellent archery athletes who are still in training are tested in the research.The following conclusions are drawn from the real time testing of EEG of 24archery athletes in handstand training with different durations:there is a significant difference of the percentage of PCF onαband in bilateral occipital region between the position of normal state and handstand after 5 min handstand training.And two nonlinear parameters of EEG-the approximate entropy and Lempel-Ziv complexity, and six neurotransmitters of whole brain are also greatly different from the performance in the state recovered from the training (P<0.05) .The approximate entropy and Lempel-Ziv complexity of EEG, INH, 5-HT, DA, NE, EXC, total score of SCL-90also changed significantly, compared to that of the archery athletes before the handstand training 8weeks ago.The research indicates that 1) the stimulation of 3min handstand training is not obvious.While in the 5min training, there is a striking change on part of Nonlinear Parameters of EEG and index of neurotransmitters of whole brain between the original state and recovery state from the training.2) after 5min handstand training, because of different body positions, the percentage of PCF onαband at occipital increased dramatically, and the nonlinear parameters of EEG as well as the index of neurotransmitters of whole brain changed significantly, which could be treated as the positive changes caused by different body positions and CBFV (cerebral blood flow velocity) .3) eight-week-handstand training could increase 5-HT and DA greatly, and decrease total score of SCL-90remarkably in neurotransmitters of whole brain, which show that handstand training could ease the negative mood, relieve symptoms and improve sleeping quality.Those favorable effects will be more obvious with extension of the handstand training time.