Evaluation of the Impact of a Rehabilitation Intervention Based on Cycling With Virtual Park on Training Motivation in Adult Patients

The purpose of this clinical study is to evaluate the feasibility, usability, and motivational impact of VirtualPark, a virtual reality-based dual-task rehabilitation system, in adults with neurological and age-related conditions. VirtualPark is a virtual reality application designed to deliver cognitive exercises during cycling training using a commercially available ergometer (THERA-Trainer Tigo). The system integrates physical and cognitive tasks in simulated real-life environments. The intervention integrates motor and cognitive training tasks targeting domains such as attention, inhibition, working memory, and navigation. This is a prospective, multicenter, randomized, cross-over pilot study. It will compare cycling training performed with and without virtual reality. Participants will complete both intervention conditions over a 4-week period separated by a wash-out phase with standard rehabilitation activities. The order of conditions will be randomized. The study will assess motivation during rehabilitation training, usability and user experience of the system, as well as exploratory effects on cognitive and motor performance, functional abilities, perceived exertion, and safety. The study will enroll adult participants (≥18 years) with conditions such as stroke, Parkinson's disease, multiple sclerosis, amyotrophic lateral sclerosis, mild cognitive impairment, spinal cord injury, and frail older adults.