Sit-to-stand Test in Cystic Fibrosis Children and Adolescents

Sit-to-stand Test Use in Children and Adolescents With Cystic Fibrosis : Correlations With 6-Minute Walking Test, Quadriceps and Respiratory Muscle Strength and Health Related Quality of Life

Cystic fibrosis (CF) is a chronic hereditary respiratory disease. Exercise testing is part of CF patients regular assessment.

Cardio-Pulmonary Exercise Testing (CPET) is currently considered as the gold standard to assess physical capacities. However, simple field tests are emerging. These tests are easier to perform especially in a population of CF children and adolescents.

The 1minute Sit-To-Stand test have recently been evaluated in CF adults. This test correlates with maximal oxygen consumption during CPET.

The investigators hypothesized that this test also correlates with 6-Minute Walking distance (during a 6-min Walk Test), quadriceps strength, respiratory muscles strength and health-related quality of life.

Inclusion Criteria:

• Cystic Fibrosis
• Exacerbation-free last month before inclusion

Exclusion Criteria:

• Cardiovascular, neurological or musculoskeletal contra-indications to exercise testing
• Other respiratory disease (kyphoscoliosis, asthma ...)
• Exacerbation
• Unability to carry out field tests