5. Conclusion
To summarize, the current study provides evidence for the facilitative effect of acute exercise on the attentional and preparatory processes in a task that requires inhibition in children with ADHD. The results suggest that acute exercise leads to acceleration of response to Go stimulus in Go/No Go Task as well as exert its influence on the resource allocation of preparation as reflected by the CNV amplitudes. Although not directly measured, the modulation of arousal might be one of the mechanisms that mediates this effect. In addition, acute exercise may regulate the release of some particular neurotransmitters, such as DA, in children with ADHD. Such findings not only augment the evidence for the value of physical exercise but also indicate that behavioral preparation in the ADHD population can be improved by a single bout of exercise. The findings imply that this immediate effect of exercise may be applied to some specific occasions, such as break time between classes, for children with ADHD in order to improve their performance.