Development of a Mixed-Reality Application for Volitional Step Training in People With Multiple Sclerosis: Cross-Sectional Qualitative User-Centered Co-Design Study

Gabriele Perachiotti   ^{1, 2} , PT ;   Isolde Martina Busch   ³ , PhD ;   Ersilia Vallefuoco   ⁴ , PhD ;   Giovanni D'Errico   ⁵ , PhD ;   Nicola Moccaldi   ⁴ , PhD ;   Sofia Straudi   ^{1, 2} , MD, PhD ;   Pasquale Arpaia   ⁴ , PhD

¹ Department of Neurosciences and Rehabilitation, University of Ferrara, Ferrara, Emilia-Romagna, Italy

² Department of Neurosciences, Arcispedale Sant'Anna, Ferrara, Emilia-Romagna, Italy

³ Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Veneto, Italy

⁴ Department of Electrical Engineering and Information Technology, University of Naples Federico II, Napoli, Campania, Italy

⁵ Department of Cultural Heritage, University of Salento, Lecce, Puglia, Italy