Background: Research on visual attention control of older road cyclists, who represent a subgroup of traffic participants, is still scarce and studies on their attentional performance while cycling are completely lacking. Objective: The present study assessed whether attention control performance of older individuals with a history of participation in road cycling is affected by concomitant cycling exercise. Acute exercise effects were also analyzed in co-aged aerobically trained and sedentary noncyclists to assess whether the acute exercise-cognition relationship is moderated by individual differences induced by chronic sport practice versus sedentary lifestyle. Methods: Sixteen 60- to 80-year-old cyclists and 32 age-matched noncyclists (16 endurance athletes and 16 sedentary individuals) performed a go/no-go reaction time task in which visual attention was cued by means of spatial cues of different sizes followed by compound stimuli with local and global target features. Results: Older cyclists showed commonalities with and differences from other aerobically trained athletes. Both trained groups, when compared to sedentary individuals, showed shorter reaction time (RT) during physical exercise and a smaller RT disadvantage for unexpected local targets at short stimulus-onset asynchrony (SOA). This expectancy-driven RT effect was stable across SOAs only in the case of cyclists. Conclusions: Results suggest that chronic long-term aerobic training may lead to favorable conditions for the occurrence of a facilitation effect during acute exercise and for a more efficient use of available resources on attentional tasks involving executive control. These results highlight the importance of considering the effects of aerobic exercise for supporting safe on-road behavior.

Keywords:
Visual attention, Executive function, Aerobic sports, Physical activity
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© 2010 S. Karger AG, Basel
2010
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