Materials
HYPERTENSION
The VR high fidelity prototype was part of the development during the BewARe project. The goal of the project was to develop a virtual sensor-based exercise training program for older adults with hypertension. At the time of the study, the prototype was still under development. More details about the gamification concept can be found in a previous publication [An HTC Vive Pro™ VR headset was applied for the study. To enable interactivity five HTC Vive ™ Trackers 2.0 and Valve Index™ controllers were used.The Polar M600™ smartwatch was used as a monitoring tool to record the participant’s HR during the entire VR exergame. The real-time HR was displayed to the participants in the VR environment via an interface to the VR application. The background of the virtual smartwatch changed the color according to the intensity (underload = blue, individual moderate load intensity = green and overload = red) and can be used for training control. Therefore, framework data (age, height, weight, resting heart rate) were recorded a priori to determine the individual moderate load intensity zone. Existing studies show that the Polar M600 can be used as a valid measurement tool [