HUANG Xin-hong, LIN Wen-tao, WENG Xi-quan
Objective: By observing the changes through motor mood, emotional state and5-Hydroxytryptamine(5-HT), dopamine(DA) of subjects in running with different loads, analysis the variation of different intensity exercise between the psychological indicators and neurotransmitter indexes, to explore the correlation between the two indexes, to provide the basis of psychological states and body functions by scientific diagnosis of the subjects. Methods: Taking fifteen healthy boys from Guangzhou Sport University as experimental subjects. They ran with four different loads: 60%VO2max, 70%VO2max, 80%VO2max, and 90%VO2max, 5 d/w, 1 h/d, and stayed 4 w. The BFS and subjective Exercise Experience tables were filled before experiments and after the weekly exercises, to test the mood and emotional state; blood was collected by fasting vein every Saturday morning before the experiments and after exercise, to measure the contents of serum 5-HT and DA. Results: 1) The two dimensions of positive mood (pleasantness and thoughtfulness) are the best after 70%VO2max exercise; The four dimensions of negative mood (anger, agitation, depression, and inactivity) were not in good condition after 90%VO2max exercise. 2) Exercise fatigue, positive happiness and psychological distress were the most obvious after 80%VO2max, 70%VO2max and 90%VO2max exercise. 3) The contents of serum 5-HT increased to different degrees in different load exercises, and was significantly increased after 70%VO2max exercise and 90%VO2max exercise. 4)There was a negative correlations between exercise fatigue and 5-HT contents, and a positive correlations between positive happiness and 5-HT contents; Exercise fatigue and psychological distress were negatively correlated with DA contents. Conclusion: 1)70%VO2max had positive emotions and high positive happiness after running. 90%VO2max exercise produced negative emotions and psychological troubles, suggesting that moderate load running can improve individual pleasure and thinking, high load running is easy to produce negative mood and adverse emotional reactions. 2) There is a correlation between individual emotional state indicators and serum 5-HT and DA contents. Taking blood neurotransmitters as research indicators, it is possible to analyze the changes of individual subjective emotions, which can provide experimental basis for individual scientific exercise and effective regulation of emotional states.