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Estimating time-to-contact with temporal occlusion in relay swimming: a pilot study
Lilian Ribeiro1, Aldo M Costa2,3,4, Hugo Louro3,5
1College of Physical Education and Physiotherapy, University of Passo Fundo, Passo Fundo, Brasil.
European Journal of Sport Science
|August 22, 2019
Summary
Swimmers underestimate time-to-contact in simulated relay races. Developing perceptual skills is crucial for optimizing relay start effectiveness and technique.
Area of Science:
- Sports Science
- Motor Control
- Perception
Background:
- Accurate time-to-contact estimation is vital for effective relay starts in swimming.
- Swimmers' perceptual judgments influence their reaction time and performance during exchanges.
Purpose of the Study:
- To analyze national-level swimmers' perceptual judgments of time-to-contact in a simulated freestyle relay.
- To investigate gender differences in time-to-contact estimation during simulated relay exchanges.
Main Methods:
- 31 national-level swimmers (18 males, 13 females) participated.
- Participants viewed videos of swimmers approaching for a relay exchange with temporal occlusion at 7.5, 5.0, and 2.5m.
- Swimmers estimated time-to-contact by pressing a switch from a simulated start position.
Main Results:
- Swimmers generally underestimated time-to-contact across occlusion distances and genders (p < .05).
- Exceptions included men at 7.5m (p = .744) and women at 5.0m (p = .279 for 4x100m, p = .245 for 4x200m).
- The largest estimation error occurred in females at 7.5m occlusion in the 4x100m relay (p < .001).
Conclusions:
- Swimmers tend to underestimate the time-to-contact of incoming relay swimmers.
- Perceptual abilities are critical for optimizing technique and effectiveness in relay starts.
- Training should focus on enhancing swimmers' time-to-contact estimation skills for improved relay performance.
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