Training with a Mobile FES-cycling System: A Case Study with a Spinal Cord Injured Pilot to Investigate Performances Optimization

Cycling by means of Functional Electrical Stimulation (FES) has proven to be a valid technique for the rehabilitation of patients with Spinal Cord Injuries (SCI). In particular, it can be seen not only as a therapeutical approach but also as an accessible form for people with disabilities to perform sport activity. In this case study, carried out in collaboration with INAIL Centro Protesi within the project FESleg, a mobile FES-cycling system designed to provide real-time outcome measures about cycling performance is presented. A commercial passive recumbent trike has been adapted for use by cyclists with neurological conditions by adding two four-channel stimulators and a measuring system composed by an encoder, sensorized pedals and a heart rate sensor. Preliminary results with a single SCI pilot are shown, proving the feasibility of the system and the importance of constant training to increase motor performances. Furthermore, new sensor-based measures are proposed, and the possibility to exploit them to validate stimulation strategies and to optimize training performances is presented.