Effectiveness of 5-week Digital Respiratory Practice in Children With Duchenne and Becker Muscular Dystrophies.

Forced vital capacity is a respiratory parameter which is obtained from spirometry and which provides objective, valid information. It will be performed using spirometry before and after the digital respiratory intervention program. The spirometer that will be used is the "EasyOne Air Spirometer that complies with ISO 26782 standards, following the national spirometric recommendations of the ATS/ERS 2019.

An anthropometric study of the patient's characteristics will be carried out, taking into account age, weight, as well as the average values that should be established based on age; as well as a general physical examination of the patient to analyze if they will be considered fit or not to carry out the program.

The weight will be check by "SECA 700 MECHANICAL COLUMN SCALE WITH SECA 220 STADIOMETER", and the height will be analyze by a measuring tape.

An anthropometric study of the patient's characteristics will be carried out, taking into account age, as well as the average values that should be established based on age; as well as a general physical examination of the patient to analyze if they will be considered fit or not to carry out the program.

An anthropometric study of the patient's characteristics will be carried out, taking into account height, as well as the average values that should be established based on age; as well as a general physical examination of the patient to analyze if they will be considered fit or not to carry out the program.

An anthropometric study of the patient's characteristics will be carried out, taking into account height, as well as the average values that should be established based on sex; as well as a general physical examination of the patient to analyze if they will be considered fit or not to carry out the program.

Forced expiratory pressure is a respiratory parameter obtained through spirometry, which provides important information about the patient's respiratory status. Measuring it will be done with the same characteristics as that previously mentioned in the FVC.

Changes in the strength of the inspiratory and expiratory muscles will be assessed using a pressure meter with a reading range of ±300 cm H20 and an accuracy of 3% (MicroRPM® model, Vyaire Medical GmbH, Hoechberg, Germany) following the national recommendations of the Spanish Society of Pulmonology and Thoracic Surgery (SEPAR) (16).

The existence of changes in the diaphragm force index is assessed, measuring it in exactly the same way as the MIP and PEM.

The amount of effort the child perceives during the sessions is assessed. It shows 11 descriptors numbered from 0 to 10 and 5 verbal descriptors located every 2 levels of the numbered descriptors, along with a drawing of a child doing physical activity in an increasing manner, increasing in intensity from left to right. The higher the numerical value, the worse the result is considered.

52-item scale carried out in Ravens-Sieberer U and validated in Spanish by Rajmil L, which assesses physical and psychological well-being, mood and emotions, self-perception, autonomy and relationship with friends and social life. . The scores were transformed into a scale from 0 to 100 to facilitate their interpretation: the higher the score, the higher HRQoL.

Designed to capture the construct of ambulatory function in DMD. 17-item scale that grades performance of various functional skills on a scale from 0 (unable), 1 (completes independently but with modifications), and 2 (completed without compensation). Total score 0 - 34 with a higher score denoting a higher level of function. It includes two timed tests. Timed rise from floor (RFF) and timed 10 metre walk / run test (10MWR). Validated and regularly used in clinical trials as well as clinic. Well understood by families. The best score is 34 points.