The effect of long-term highly physical activity modulates event-related potential indices for inhibition control in postmenopausal women
Purpose: The purpose of this study was to determine whether long-term highly physical activity affects inhibition control ability among postmenopausal women by evaluation Go/Nogo tasks from behavioral and neuroelectric perspectives. Method: This prospective trial included 251 postmenopausal women. Subjects were screened by both physical and psychological tests and grouped into a long-term highly physical activity group (n = 30) and control group (n = 30) according to their physical activity level and insisting time. A Go/Nogo task was used to assess the inhibition. Results: The long-term highly physical activity group had faster Go RT than the control group, and no significant differences were found in the accuracy of the Nogo task between two groups. The N2 amplitude was largest at FC2, and the N2 latency in the long-term highly physical activity group was shorter than that in the control group. The P3 amplitude under Go condition was smaller than Nogo condition and a significant interaction was observed in condition, electrode and group. The P3 latency under Go condition was significant shorter than under Nogo condition. Conclusion: Long-term highly physical activity group increases the efficiency of the inhibitory control system by increasing the activity of response monitoring processes. Also, the right frontal-center region plays a sensitive role in this inhibitory process.