Abstract
Optimal visual abilities including stereo acuity seem to be an important issue in sports. There is increasing evidence that stereo acuity can be sustainably improved by digital vision training even for people with good stereo acuity. In this study 31male and female tennis players (professionals, young professionals, coaches and former professionals) completed at least 6training units each with 192 dynamic stereoscopic tasks (N = 1152) within 6 weeks including a4-option testwith different levels of difficulty on a3D screen at a distance of 5 m. The parameter reaction time and correctness at 15-300 arcseconds was determined. For amore precise representation of the reaction time improvement as afunction of the difficulty level, the parameter reaction time increase per stereo disparity reduction (ReST) was defined. Reaction time to 15 arcsecond stimuli significantly decreased from 3.9 s to 1.6 s (59%) as aresult of digital vision training. The correctness at 30 arcsecond stimuli significantly increased by 23%. The observed improvement in reaction time during vision training did not result in decreasing correctness when answering the visual questions. This represents an overall improvement in stereo vision. Dynamic visual training over 6 weeks improves stereoscopic performance including stereo acuity, response time and correctness.
Highlights
Optimal visual abilities including stereo acuity seem to be an important issue in sports
increasing evidence that stereo acuity can be sustainably improved by digital vision training
The correctness at 30 arcsecond stimuli significantly increased by 23%
Summary
Hintergrund und Fragestellung: Gutes Stereosehen scheint bei Hochleistungssportlern und im Alltag eine wichtige Rolle zu spielen. Wir untersuchten die Fragestellung, ob sich das Stereosehen bei Sportlern mit bereits guter Stereosehschärfe durch ein digitales Sehtraining noch verbessern kann. Ergebnisse: Die Reaktionszeit bei Stimuli von 15 Bogensekunden verkürzte sich durch das Sehtraining im Mittel signifikant von 3,9 s auf 1,6 s (59 %). Die Korrektheit der Versuche bei 30 Bogensekunden steigerte sich im Mittel signifikant um 23 %. Diskussion: Die beobachtete Verbesserung der Reaktionszeit im Sehtraining führte nicht zur Abnahme der Korrektheit bei der Beantwortung der visuellen Fragen und stellt damit insgesamt eine Verbesserung der Stereosehfähigkeit dar. Schlussfolgerung: Durch das digitale Sehtraining verbesserte sich das stereoskopische Sehen signifikant hinsichtlich Stereogrenzwinkel, Reaktionszeit und Korrektheit.
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