With advances in genetic therapies, many people with Cystic Fibrosis (CF) are living longer. With the improvement in life expectancy has emerged an increased risk of cardiovascular disease (CVD). Factors such as insulin resistance, reduced physical activity, rising blood pressure from newer medications, and changes in body mass index have made cardiovascular health a growing concern in CF care. This study aims to assess whether a remotely delivered, monitored exercise programme can increase physical activity levels in adults with CF. Secondary outcomes will explore whether the intervention improves key CVD risk factors. Participants will be randomly assigned to either a control group or an intervention group, which will complete an 8-week home-based aerobic and resistance exercise programme. Exercise intensity will be tailored using the Rate of Perceived Exertion scale. Key outcomes include weekly physical activity levels, body mass index, waist circumference, lung function (spirometry) and blood biomarkers. Home-based capillary blood tests, analysed pre- and post-intervention, will measure cholesterol, lipid profiles, inflammation and other relevant hormones.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
30
8 week personalised exercise intervention. Delivered and monitored via mobile health technology
Continue current lifestyle
Centre for Nutrition, Exercise and Metabolism
Bath, United Kingdom
Weekly minutes of moderate-vigorous physical activity
Measured using a Geneactiv wrist-based activity monitor
Time frame: Baseline and 8 weeks
Body mass index
kg/m2
Time frame: Baseline and 8 weeks
Waist circumference
Measured in centimetres
Time frame: Baseline and 8 weeks
Waist to hip ratio
Measured in centimetres
Time frame: Baseline and 8 weeks
1-minute sit to stand test
Participant stands up and sits down from a chair for one minute and the number of completed sit-to-stands is recorded.
Time frame: Baseline and 8 weeks
Multidimensional Fatigue Inventory
Measured on 20 questions with a scale of 1-5. The maximum possible score is 100 with a higher score indicating more acute levels of fatigue
Time frame: Baseline and 8 weeks
Cystic Fibrosis Questionnaire Revised
Quality of life questionnaire validated for Cystic Fibrosis. Scores range from 0 to 100, with higher scores indicating better health.
Time frame: Baseline and 8 weeks
Manchester Musculoskeletal Screening tool
Musculoskeletal pain questionnaire. A higher score indicates a worse outcome. Maximum possible score is 50, minimum possible score is 0
Time frame: Baseline and 8 weeks
Sleep quality
3-day sleep quality and quantity diary
Time frame: Baseline and 8 weeks
Fasting insulin levels, pmol/L
Taken from the early morning fasted capillary blood sample
Time frame: Baseline and 8 weeks
Fasting triglyceride concentration, mmol/L
Taken with the early morning fasted capillary blood sample
Time frame: Baseline and 8 weeks
Serum fructosamine, mmol/L
Taken from the fasted early morning capillary blood sample
Time frame: Baseline and 8 weeks
Fasting LDL-C, HDL-C and total cholesterol, mmol/L
Taken from the fasted early morning capillary blood samples
Time frame: Baseline and 8 weeks
High sensitivity C-reactive protein, mg/L
Measured in the capillary blood samples taken
Time frame: Baseline and 8 weeks
Forced expiratory volume in one second
Obtained by spirometry. Recorded as litres per minute and percentage predicted values using Global Lung Index reference values
Time frame: Baseline and 8 weeks
Forced Vital Capacity
Obtained through spirometry. Recorded as litres per minute and percentage predicted values using Global Lung Index reference values.
Time frame: Baseline and 8 weeks
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