Abstract
The influence of exercise intensity on information processing in the central nervous system was investigated using P300 and no-go P300 event-related potentials. Twelve subjects (22-33 years) performed a go/no-go reaction time task in a control condition, and again after high-, medium-, and low-intensity pedaling exercises. Compared to the control condition, P300 amplitude decreased after high-intensity pedaling exercise and increased after medium-intensity pedaling exercise. There was no change after low-intensity pedaling exercise. These results suggested that the amount of attentional resources devoted to a given task decreased after high-intensity exercise and increased after medium-intensity exercise. The findings also suggest that changes in P300 amplitude are an inverted U-shaped behavior of differences in exercise intensity. In addition, no-go P300 amplitude showed the same changes as P300 amplitude at different exercise intensities. This indicates that differences in exercise intensity influenced not only the intensity of processing the requirement for a go response, but also processing of the need for a no-go response. It is concluded that differences in exercise intensity influenced information processing in the CNS.
| Original language | English |
|---|---|
| Pages (from-to) | 305-311 |
| Number of pages | 7 |
| Journal | European Journal of Applied Physiology |
| Volume | 92 |
| Issue number | 3 |
| Publication status | Published - 2004 Jul |
| Externally published | Yes |
Keywords
- Event-related potential
- Inverted U-shaped behavior
- No-go P300
- P300
ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health
- Physiology
- Orthopedics and Sports Medicine
- Physical Therapy, Sports Therapy and Rehabilitation
