The research evaluated an innovative way of communicating and understanding the complexity of older adult mobility problems using visualisations of objective dynamic movement data. In previous research, a prototype software tool was created, which visualises dynamic biomechanical data, captured from older adults undertaking activities of daily living, in accessible way for non-biomechanical specialists and lay audiences. From motion capture data and muscle strength measurements, 3D animated human 'stick figures' were generated, on which the biomechanical demands of the activities were represented visually at the joints (represented as a percentage of maximum capability, using a continuous colour gradient from green at 0%, amber at 50% through to red at 100%). Potential healthcare and design applications for the visualisations were evaluated through a series of interviews and focus groups with older adults, and healthcare and design professionals, and through a specialist workshop for professionals.