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Visual Behavior in Inline Speed Skating: An Eye-Tracking Evaluation for Performance Analysis.

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Elite inline speed skaters use optimized visual strategies, focusing on the inner track during curves. Training enhances visual efficiency, but fatigue can reduce saccade speed and length on straightaways.

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Area of Science:

  • Sports Science
  • Ophthalmology
  • Biomechanics

Background:

  • Oculomotor behavior is critical for performance in speed skating.
  • Understanding visual strategies can optimize training and performance.

Purpose of the Study:

  • To analyze oculomotor behavior (fixations and saccades) in competitive inline speed skaters.
  • To compare visual strategies between high-performance (N1) and intermediate (N2) skaters.
  • To investigate the effects of intensive training and fatigue on visual behavior.

Main Methods:

  • Eye-tracking (Pupil Labs Neon) during 200 m time trials in 19 skaters (N1=high-performance, N2=intermediate).
  • Optometric assessments and recordings taken before (PRE) and after (POST) intensive training.
  • Analysis of fixations, saccades, saccadic velocity, and saccade length in different track segments.

Main Results:

  • Curved segments required more fixations and saccades than straights; skaters focused on the inner track line.
  • High-performance skaters (N1) showed greater visual efficiency (fewer fixations/saccades).
  • Post-training, N1 skaters exhibited increased fixations in curves and reduced saccade velocity/length on straights, indicating fatigue.

Conclusions:

  • Skater experience enhances visual efficiency, with elite skaters displaying more focused gaze patterns.
  • Training-induced fatigue primarily impacts straight segments, reducing saccade parameters.
  • Sport-specific visual training and fatigue management are crucial for inline speed skating performance.