Usability and user expectations of a HoloLens-based augmented reality application for learning clinical technical skills

The application of augmented reality in training health science students is increasingly widespread. The aim of this work was to assess the usability and user expectations of an augmented reality application for smart glasses (Microsoft HoloLens) that can be used to train on four invasive procedures (i.e. intramuscular injection, nasogastric tube insertion, endotracheal intubation and suctioning via tracheostomy tube). A descriptive study was conducted with nursing students from three Spanish universities. Participants answered a questionnaire to assess the use of the ARSim2care application. This application offers the possibility of visualizing the internal anatomical structures during the training of the clinical technical skills for the performance of the mentioned invasive techniques. The questionnaire included demographic data, the System Usability Scale and questions about the user expectations in relation to learning with the use of augmented reality. In total, 61 participants responded to the questionnaire after using the ARSim2care application. The mean score of the System Usability Scale was 73.15 (standard deviation: 15.04) and 62.4