Reliability and validity of a self-developed virtual reality-based test battery for assessing motor skills in sports performance.

Athletes must master various motor skills for success in their sports. To assess performance and identify areas of improvement, effective sports-motoric tests are essential. Key abilities such as reaction time, jumping, and complex movement coordination are critical. Virtual reality (VR) offers a practical, traditional equipment-free tool for assessment, though new VR-based tests must be evaluated first. We evaluated a self-developed test battery to measure reaction time (drop-bar test), jumping ability (jump and reach test), and parkour execution involving multiple complex motor tasks (with/without a virtual opponent). 32 participants completed these tests twice in real environment (RE) and VR (pre- and post-test). Intraclass correlation coefficients showed high reliability for reaction time in RE (0.858) and VR (0.888), with moderate significant correlations between them (r = .445), suggesting validity. The jump and reach test showed even better reliability (RE: 0.944, VR: 0.886) with strong correlations between RE and VR (r = .838). The parkour test showed lower reliability (x̄ 0.770), particularly for one task, with significant differences between the conditions indicating different behavior in VR. However, the addition of a virtual opponent eliminated these differences. VR appears to be a promising alternative to traditional testing methods, revealing comparable values across conditions.