Background QE is defined as the final fixation on a specific location or object in the visuomotor workspace, for a minimum of 100 ms, that enables the athletes to gather relevant information before a critical movement. Several lines of research indicate that QE contributes to sports performance. However, its contribution to performance is derived mainly from research investigating isolated motor tasks. Therefore, little is known about its contribution in realistic competitional settings. Methods The present study determined whether QE contributes to table tennis performance obtained from matches played in a simulated competition. Athletes (N = 10) performed two matches, one against a difficult and one against an accessible opponent. Gaze behavior was captured using Tobii Glasses 2. Results We found that athletes made longer QE before winner balls (i.e., balls that scored a point), compared to forced and unforced errors (p_bonferroni = 0.005, t = -4.45; p_bonferroni <0.001, t = -6.45). Confirming that QE contributes to performance in a real match even in a competitional setting. We found no significant effect for the difficulty of the match, nor an interaction between the difficulty of the match and the type of shots Fs (1, 9) < 2.26, ps >0.16 0.70, q'2ps < 0.20. Conclusions The present study provides evidence for QE's contribution to sports performance investigated in a "gold standard" ecological environment. More specifically, it provides evidence that QE gradually increases with the quality of the shot. Identical patterns were found regardless of the difficulty of the match.
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