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How does visual manipulation affect obstacle avoidance strategies used by athletes?

M P Bijman1, J J Fisher1, L A Vallis1

  • 1a Department of Human Health and Nutritional Sciences , University of Guelph , Guelph , Canada.

Journal of Sports Sciences
|August 21, 2015
PubMed
Summary
This summary is machine-generated.

Varsity athletes and recreational individuals showed similar obstacle-crossing performance when vision was removed. Athletes did not perceive obstacles as a threat to stability during full vision trials.

Keywords:
Visionathleteslocomotionnavigationobstacle

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Area of Science:

  • Biomechanics
  • Motor Control
  • Sports Science

Background:

  • Obstacle avoidance relies heavily on visual input for guiding motor behavior.
  • Athletes, particularly those in field sports, may possess enhanced visual-motor skills for navigating environments.

Purpose of the Study:

  • To compare the obstacle-stepping abilities of varsity-level field sport athletes versus recreational individuals.
  • To investigate the role of visual input in obstacle negotiation for athletes and non-athletes.

Main Methods:

  • Kinematic markers were used to record movement data.
  • Participants (8 varsity athletes, 8 controls) stepped over stationary obstacles.
  • Visual input was manipulated using specialized goggles, comparing full vision, reduced vision, and no vision conditions.

Main Results:

  • Controls exhibited greater peak trail toe elevation than athletes during full vision trials, suggesting less perceived threat.
  • Athletes demonstrated an ability to transfer skills to novel conditions under full vision.
  • When vision was removed, both groups showed similar performance, indicating equal reliance on visual cues.

Conclusions:

  • Varsity athletes' enhanced visual-motor skills may not translate to superior obstacle negotiation when visual input is limited.
  • Despite potential adaptations, athletes remain significantly reliant on visual cues for visually guided stepping tasks.
  • Perception of obstacles and postural stability are key factors in understanding group differences in performance.