Abstract

RODRIGUES, Sérgio Tosi; SCHIAVON, Renato  and  MACEGOZA, Juliane. O tipo de trajetória não afeta o controle visual da freada em ciclistas. Rev. Bras. Educ. Fís. Esporte [online]. 2012, vol.26, n.03, pp.473-483. ISSN 1981-4690.

Braking visual control was studied in recreational cyclists through the manipulation of bicycle’s velocity at braking initiation (low, medium, and high) and approaching trajectory (straight and curved) with respect to a stationary obstacle. The hypothesis was that the type of trajectory, exclusively or interacting with initial velocity, would affect time to collision visual information (tau margin) and its first derivative in time (tau-dot), respectively, in the onset and during braking. The results revealed that velocity affected significantly tau margin while tau-dot remained unaltered independently of condition. The type of trajectory clearly did not affect the visual control of braking in cyclists.

Keywords : Time to Collision; Visual Information; Braking; Cyclism.

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