FIGURE 2.

Study flow chart. Screening of participants for eligibility included an assessment of cognitive and health state. Physical and cognitive functions as well as brain activity were measured at pre- and post-measurement. Assessments and the first half of the intervention were performed at the living lab of ETH Hönggerberg (Zurich, Switzerland), the second half at participants’ home. Questionnaires assessing usability and game experience were filled in after the training period. Technical drop-out reasons included software problems, unstable IMU connections and inappropriate movement evaluation. Other drop-out reasons were related to injuries, sudden illness and family affairs. SUS, System Usability Scale; GEQ, Game Experience Questionnaire.