Determining dual-task costs and exploring interindividual responsiveness to an opponent using virtual reality

Stefan Pastel ^1* Alexander Schwadtke ¹ Anne Krahmer ¹ Katalin Altrogge ¹ Dan Bürger ¹ Florian Heilmann ² Kerstin Witte ¹

• ¹ Otto von Guericke University Magdeburg, Magdeburg, Germany
• ² Martin Luther University of Halle-Wittenberg, Halle, Saxony-Anhalt, Germany

Dual-task (DT) ability is essential in sports, where athletes must perform motor and cognitive tasks simultaneously. Virtual reality (VR), with its enhanced performance and affordability, offers a valuable tool for training and assessing these abilities. This study aimed to develop VR scenarios to measure DT costs and compare DT ability between athletes from individual (IG) and team (TG) sports using a basketball-specific scenario. 29 participants completed two experiments to examine DT ability: a reaching and a dribbling task (DR). The reaching involved three tasks: walking a 4meter track, standing while reacting to popping balls, and a combination of both. Parameters such as step length, gait time, and reaction were measured. In DR, participants dribbled while reacting to a virtual opponent. Data on conduction time, errors, reaction time, gaze behavior (GB), and decision-making were analyzed. Significant differences were found between single and DT performances, with DT costs reaching up to 20% (p >.05). However, no significant differences were observed between IG and TG for selected parameters (F(1, 28) = 1.104, p = .410, partial η² = .380). Differences in GB and decision-making were noted and discussed. VR proved effective in assessing DT costs and providing insights into decision-making processes.