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The quiet eye is sensitive to exercise-induced physiological stress
Mark R Wilson1, Ann Webb1, Lee J Wylie1
1Sport and Health Sciences, College of Life and Environmental Sciences, St. Luke's Campus, University of Exeter, Exeter, United Kingdom.
Progress in Brain Research
|November 5, 2018
Summary
High-intensity exercise impairs visuomotor skills by disrupting attentional control, measured by quiet eye duration. This suggests fatigue-induced attentional deficits explain performance decline in athletes.
Area of Science:
- Sports Science
- Neuroscience
- Exercise Physiology
Background:
- Acute exercise can lead to decrements in visuomotor performance.
- Attentional control is crucial for skilled motor tasks like basketball shooting.
Purpose of the Study:
- To investigate the role of attentional mechanisms in visuomotor performance decline after acute exercise.
- To examine the effect of exercise intensity on shooting accuracy and quiet eye duration.
Main Methods:
- Ten basketball players performed free throws before and after cycling at four different intensities (rest, moderate, heavy, severe).
- Mobile eye tracking measured quiet eye duration (attentional control).
- Shooting accuracy was scored using a 6-point system.
Main Results:
- Severe intensity exercise significantly impaired shooting accuracy (19% drop) and quiet eye duration (45% drop).
- Changes in quiet eye duration predicted 33% of the variance in performance accuracy changes.
- Moderate and heavy exercise intensities did not significantly impact performance or quiet eye.
Conclusions:
- Attentional disruptions, specifically reduced quiet eye duration, may explain performance degradation under severe acute fatigue.
- These findings highlight the importance of attentional control in maintaining visuomotor skills during exercise.
- Training strategies to mitigate fatigue-induced attentional impairments warrant further investigation.
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