Duchenne's Muscular Dystrophy and Becker Dystrophy, hereafter DMD and BMD, is a serious and progressive disease that affects 1 in 3,500-6,000 males born alive. Scale 6-minute walking test, is used for determine the inclusion of children with DMD in pharmacological studies. Furthemore, is used to verify a training effectiveness assessing muscular endurance and cardio-respiratory functions. This Research evaluates the feasibility and effectiveness of a multimodal physiotherapist program with virtual reality glasses.

In addition a physiotherapy program, virtual reality have a lot of importance advantages for train while motivated the kids.

A cross over study will be applied. In the control time, patient will received a initial evaluation and a final without making the physiotherapy program and without virtual reality glasses. The data will be collected by principal examiner.

In the intervention time the group will received 10 multimodal physiotherapy sessions, two or one per week, along six weeks. Also they are going to training walking with with virtual games.

Multimodal physiotherapist program describes the exercises to be performed, how long it will take, the number of repetitions and the way to do it with the physiotherapist in zoom session.

At the end of the multimodal physiotherapy program, variables will be evaluated by the principal examiner.

Inclusion Criteria:

• Children between 4 and 15 years
• Duchenne and Becker Diagnosis ICD-10 issued by specialist in neurology.
• Children who can walk 10 m at last 120 seconds.
• First punctuation of North Start Ambulatory assessment bigger than 20 points.

Exclusion Criteria:

• An other Dystrophies.
• Older than 10 years.
• Not Physiotherapy. Not walk.
• Asociated heart disease Sprains, fractures. FC >120, Sat O2 <89%.

an average of 2 years