The Motor Function Measure (MFM) is a functional rating scale consisting of 32 items assessing motor functional abilities in a person with neuromuscular disease.

By exploring the potential of digital technologies applied to MFM, for each item completion we want to create digital animations containing different playful and informative scenarios. This digital evolution aims to standardize assessment on the therapist's side, but also to improve acceptance of scale and patient participation.

Despite the modification of the MFM completion by digital animation, the study hypothesis is that the metrological qualities of the scale are retained.

Through the MFM-Play pilot study, the objective is to test 5 items of the MFM-Play scale before carrying out a validation study of the total MFM-Play.

Inclusion Criteria:

• Girls and boys with a neuromuscular disease
• Aged 6 to 11 years old
• With parental assent

Exclusion Criteria:

• Patients participating to a therapeutic trial
• Patients without compartmental capacities to participate normally to the MFM.

The study will involve children with a neuromuscular disease, aged 6 to 11 years old