1. Section of Pulmonology Niño Jesús Children's University Hospital Madrid Spain
2. Department of Nursing and Physiotherapy, Faculty of Health Sciences Universidad de León Ponferrada León Spain
3. Laboratory of Pediatric Physical Activity, Infant Center Pontifical Catholic University of Rio Grande do Sul (PUCRS) Porto Alegre Brazil
4. Faculty of Sport Sciences European University of Madrid Madrid Spain
5. Pediatric Service Niño Jesús Children's University Hospital Madrid Spain