Cystic Fibrosis and Frailtyh What's in Common?

Participants will be assessed for the pulmonary status by spirometry (for Forced Expiratory Volume in 1 second \[FEV1 - L\]; Forced Expiratory Volume in 1 second percent predicted \[ppFEV1%\]; Forced Vital Capacity \[FVC - L\]; Forced Vital Capacity percent predicted \[FVC %\]; Maximal Mid-Expiratory Flow \[MMEF\]); for the functional status by evaluating the activities of daily living \[ADLs\], and the instrumental ADLs \[IADLs\]; and for frailty by the Study of Osteoporotic Fractures \[SOF\] Index. The height and weight will be also recorded, and Body Mass Index \[BMI\] calculated as body weight divided by height squared \[Kg/m2\]. Body weight will be measured in a fasting state in the morning with a mechanical balance.