Visual impairment (VI) has significant implications not only for visual functioning, but also for the motor development, psychological well-being, and social participation of children and adolescents. Despite the fundamental role of physical activity in promoting health, autonomy, and quality of life, young people with VI still participate to a limited extent in structured physical activity programmes, owing to the lack of adapted interventions supported by robust scientific evidence. The European VIPPSTAR project (Horizon Europe 2024), conducted at the University of Trento, aims to address this gap through the development and validation of an integrated system of educational and rehabilitation interventions designed to promote the motor, physiological, and psychosocial competences of children and adolescents with VI.

This study marks the transition from the validation of the exercise battery in a controlled setting, carried out during the first phase of the VIPPSTAR project, to its implementation in participants' everyday environments. The aim is to assess its effectiveness, sustainability, and impact on psychophysical and relational well-being.

The study has a longitudinal, non-profit experimental design and will involve 20 children and adolescents with VI aged 10-17 years (50% female and 50% male), recruited through lower- and upper-secondary schools in the Autonomous Province of Trento participating in the project.

The intervention programme lasts 12 weeks and is divided into two blocks. During Block 1 (8 weeks), participants will complete the motor exercise battery twice weekly in the school setting, under the supervision of Abilnova educators. Sessions will take place twice a week, last approximately 45-60 minutes, and will be accompanied by fortnightly group meetings with classmates aimed at promoting social inclusion. During Block 2 (4 weeks), participants will perform the exercises at home, with the aim of consolidating the skills acquired and promoting autonomy in carrying out physical activity exercises, while continuing the fortnightly peer sessions at school.

The effectiveness of the programme will be evaluated using a pre-post design (T0-T1), with an intermediate assessment at the end of Block 1 (T0.5). An integrated assessment system will be used, including ComfTech® wearable devices for continuous monitoring of physiological parameters, such as heart rate, respiratory rate, body temperature, SpO₂, and ECG; video systems for the assessment of motor and postural performance; standardised questionnaires assessing quality of life and social participation; and structured observation grids during peer sessions. Data will be transmitted to the AVATAR system, a conversational system developed within the project, which processes physiological and kinematic information in real time. AVATAR does not operate autonomously and does not make medical decisions.

The results will contribute to validating an adapted, sustainable, and transferable exercise battery, laying the foundations for large-scale applications in clinical, educational, and rehabilitation settings, with potentially significant benefits for the quality of life and autonomy of young people with VI.

Inclusion Criteria:

• Aged 10 to 17 years.
• Diagnosis of Visual Impairment (VI), defined as a congenital or acquired impairment of visual functioning that cannot be corrected solely through the use of glasses or contact lenses.
• Ability to participate in the exercise protocol, with adapted instructions or support where necessary.

Exclusion Criteria:

• Presence of severe neurological, orthopaedic, or cardiac conditions that contraindicate moderate physical exercise.
• Current pregnancy.
• Conditions preventing the safe use of wearable devices, such as severe skin allergies or incompatible medical devices.