YOGA-CF (Yoga Outcomes Get Assessed in Cystic Fibrosis)

Inclusion Criteria

Diagnosis of CF (confirmed by standard criteria; (Farrell et al. 2017)) Sixteen years of age or over Home internet access Ability to complete questionnaires in English Stable CF disease as judged by the investigator, a senior CF clinician

Exclusion Criteria

Inability to consent for treatment or measurement Current participation in another interventional study Current haemoptysis (greater than streaking in the sputum) Known pregnancy at time of recruitment Forced expiratory volume in 1 second (FEV1) below 30% predicted at baseline Use of ambulatory oxygen therapy, long-term oxygen therapy (LTOT) or non-invasive ventilation Current regular participation in yoga practice Current neurological or musculoskeletal injury which would prevent completion of yoga Diagnosis of osteoporosis (bone density Z score <-2.5) or history of spontaneous spinal fractures Uncontrolled gastroesophageal reflux Acute pulmonary exacerbation within 28 days of screening