Cystic fibrosis (CF) is autosomal recessive, genetic disorder cause of cystic fibrosis transmembrane regulatory (CFTR) gene mutation. CF often is observed in caucasian population. CFTR protein in cell apical membrane is canal responsible of transport sodium and clorid ions. Impaired sodium ion transport causes production viscous mucus. Disease include problems such as mucus, breathlessness and coughing. Blood glucose levels fluctuation are observed. This study aims comparison between lung function, functional capacity, muscle strength, physical activity, physical fitness and activities of daily living activities in cystic fibrosis with and without abnormal glucose tolerance

The study aimed that comparison of clinical parameters in children with and without abnormal glucose tolerance in Cystic fibrosis.

Inclusion Criteria:

1. Cystic fibrosis with impaired glucose tolerance or cystic fibrosis-related diabetes for Abnormal glucose tolerance group
2. Cooperation for tests
3. Indıviduals without an orthopedic or neurological problem and serious cardiac problems that effecting tests,
4. To volunteer for the study.

For the control group

1. Cystic fibrosis with normal glucose tolerance
2. Cooperation for tests
3. Indıviduals without an orthopedic or neurological problem and serious cardiac problems that effecting tests,
4. To volunteer for the study.

Exclusion Criteria:

Patients having following disease

1. Acute pulmonary exacerbation
2. Acute or chronic respiratory failure
3. FEV₁ lower than %40
4. Cooperation problems,
5. Bronchopulmonary aspergillus and using steroid.

cystic fibrosis with (impaired glucose tolerance, cystic fibrosis related diabetes) and without abnormal glucose tolerance