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Somatosensory-evoked potentials in athletes
1Department of Physiology, University of the Witwatersrand, Parktown, South Africa.
Medicine and Science in Sports and Exercise
|April 1, 1996
Summary
Elite athletes and sedentary individuals show no significant differences in somatosensory pathways. Elite gymnasts and endurance runners did not differ from controls in somatosensory-evoked potentials (SEPs) or reaction times.
Area of Science:
- Neuroscience
- Sports Science
- Physiology
Background:
- Somatosensory-evoked potentials (SEPs) are electrophysiological measures of the sensory pathway.
- Understanding potential neural adaptations in athletes is crucial for sports science research.
Purpose of the Study:
- To investigate differences in somatosensory pathways between athletes and sedentary individuals.
- To explore correlations between sports training and SEP characteristics.
Main Methods:
- Measured SEPs (P9, P11, P13/14, N20, P25, N30 waves) after median nerve stimulation in sedentary subjects, endurance runners, and elite gymnasts.
- Calculated central and peripheral conduction speeds.
- Assessed simple visual reaction time.
Main Results:
- No significant differences in SEP parameters or reaction times were found between the groups.
- A positive correlation was observed between years of training and N20 amplitude.
- Negative correlations were found between P11/P13/14 amplitudes and weekly training hours, and a positive correlation between N30 amplitude and visual reaction time.
Conclusions:
- Standard clinical SEP measurements do not reveal differences in somatosensory pathways between elite athletes and sedentary individuals.
- Subtle correlations suggest potential, though not significant, relationships between training load and specific SEP components.