Dynamic Visual Acuity Between Frisbee Players and Non-Frisbee Players

Abstract

Background: Dynamic visual acuity (DVA) is the ability to resolve a moving stimulus. Dynamic visual acuity is in general superior in athletes than non-athletes, which contribute to better visual abilities and translate to better performance. In this study, it is hypothesized that Frisbee players have better dynamic visual acuity due to greater perception of active images through perceptual learning from the constant tracking of Frisbee discs at a vertical and horizontal trajectory.
Materials and Methods: To measure dynamic visual acuity, participants were asked to indicate the orientation of a broken ring like a Landolt C while it traverses across a screen in the two trajectories with a computerized software (DinVA 3.0 software8).
Result: Frisbee players (n=17) showed no significant difference in mean DVA at both the meridians (V:0.377m/s+0.05; H:0.394m/s+0.05) compared to non-Frisbee players (n=33) (V:0.396m/s+0.09; H:0.405+0.08). Similarly, within group analysis showed non-Frisbee players had no significant difference (p=0.327) between vertical and horizontal DVA. However, there was a statistical significance (p=0.017) between the vertical and horizontal mean DVA in Frisbee players.
Conclusion: This concluded that there was no significant difference between the two groups but may suggest that Frisbee training does improve dynamic visual acuity but in the horizontal meridian due to a constant and improved tracking ability to predict horizontal stimulus.