Study: NCT05799690

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Gait and balance training with dual-task + action observation and motor imagery (six weeks)
Description: Increasingly difficult gait and balance exercises up to include dual-task. During each training session, four exercises (5 minutes of execution, two times each) will be proposed. Patients will observe a 2-minute video clip showing a balance or gait task (action observation - AOT) and will imagine the same exercise (motor-imagery - MI) before task execution. Each training session will be proposed with the following modality: 2 minutes of AOT - 5 minutes of task execution - 2 minutes of MI - 5 minutes of task execution. Patients will be explicitly asked to concentrate on how the actions are performed in the videos and to carefully use MI to improve their motor performance. Patients will not be allowed to perform any movement while watching videos or during MI.~1 hour, 3 times a week for six weeks.

Intervention type: BEHAVIORAL
Group type: ACTIVE_COMPARATOR
Intervention: Gait and balance training with dual-task (six weeks)
Description: Increasingly difficult gait and balance exercises up to include dual-task. During each training session, four exercises (5 minutes of execution, two times each) will be proposed. Patients will observe a 2-minute video clip showing static landscapes before task execution. Each training session will be proposed with the following modality: 2 minutes of videos - 5 minutes of task execution - 2 minutes of videos - 5 minutes of task execution.~1 hour, 3 times a week for six weeks.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Gait and balance training with dual-task + action observation and motor imagery (twelve weeks: 6 + 6)
Description: Increasingly difficult gait and balance exercises up to include dual-task. During each training session, four exercises (5 minutes of execution, two times each) will be proposed. Patients will observe a 2-minute video clip showing a balance or gait task (action observation - AOT) and will imagine the same exercise (motor-imagery - MI) before task execution. Each training session will be proposed with the following modality: 2 minutes of AOT - 5 minutes of task execution - 2 minutes of MI - 5 minutes of task execution. Patients will be explicitly asked to concentrate on how the actions are performed in the videos and to carefully use MI to improve their motor performance. Patients will not be allowed to perform any movement while watching videos or during MI.~The training protocol will be repeated two times: once starting at baseline, once starting after the first follow-up at week 14 (W14)~1 hour, 3 times a week for twelve weeks (6+6).

Intervention type: BEHAVIORAL
Group type: ACTIVE_COMPARATOR
Intervention: Gait and balance training with dual-task (twelve weeks: 6 +6)
Description: Increasingly difficult gait and balance exercises up to include dual-task. During each training session, four exercises (5 minutes of execution, two times each) will be proposed. Patients will observe a 2-minute video clip showing static landscapes before task execution. Each training session will be proposed with the following modality: 2 minutes of videos - 5 minutes of task execution - 2 minutes of videos - 5 minutes of task execution.~The training protocol will be repeated two times: once starting at baseline, once starting after the first follow-up at week 14 (W14)~1 hour, 3 times a week for twelve weeks (6+6).