Abstract
Abstract The present study was devised to analyze the relationship between sporting performance and physiological activation. Fourteen subjects participated in a modern pentathlon shooting competition. Six autonomic nervous system (ANS) parameters were simultaneously recorded in real time: Skin Potential, Skin resistance, Instantaneous Heart Rate and Respiratory Frequency, Skin Temperature, and Skin Blood Flow. The duration of concentration was considered the time lapse between the “start” order and the shot. Subjects tried to keep their arm and pistol stable during this phase. Results showed a complex relationship between activation, relaxation, and performance. ANS activity indicated an increase in physiological activation and at the same time, relaxation: activation was observed through electrodermal activity, while thermovascular indices indicated relaxation. Tonic level variations were, thus, a reliable indicator of the contrasting requirements of this sporting activity. Finally, the results challenge theories that have suggested that autonomic activity is undifferentiated.
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