Steps Ahead: Optimising Physical Activity and Health in Adults With Cystic Fibrosis

Physical activity is widely documented as one of the cornerstones of Cystic Fibrosis (CF) management as it is directly linked to mortality and quality of life. Levels of physical inactivity and sedentary behaviour have been poorly investigated among the CF population in Ireland. The measurement of these behaviours is important in order to monitor prevalence amongst people with CF (PWCF) and determine methods by which health care providers can assist with maintaining and enhancing physical activity.

The use of physical activity monitoring can provide health care providers with insightful real world analysis of physical activity and exercise behaviours. Over the last decade there has been many advancements in technology and fitness tracking with positive results being demonstrated in the healthy population and in chronic diseases such as Diabetes Mellitus II, post surgery and Multiple Sclerosis. Limited research has been conducted among PWCF to date.

The aim of this research project is to examine physical activity levels amongst PWCF and determine the effect of a 12 week randomised parallel intervention on a number of health outcomes.

Participants will be provided with an accelerometer to assess physical activity and sedentary behaviour at baseline. The participants will then undergo further baseline testing to determine exercise capacity, body composition, quality of life, breathlessness, sleep quality and wellbeing. Baseline short and long term goals will be established together with the participant and physiotherapist.

Participants will then be randomly allocated to either the intervention or the comparator. A researcher independent of the recruitment process (MC) will complete the first random allocation using a sealed opaque envelope. Following this a minimisation randomisation procedure will be completed based on lung function, where FEV1 of <70% predicted lung function will be classified as having mild lung disease. While those with an FEV1 of 30-50% predicted lung function will be classified as having moderate lung disease, with <30% indicating severe lung disease. Allocation will be revealed after recruitment and baseline assessments have occurred.

Both groups will receive a fitness tracker which will be linked to an online monitoring system (Fitabase) for 24 weeks.

The intervention group will receive personalised feedback via a text message every week on their physical activity levels as measured by their fitness tracker and progress on attainment of their goals established at the start of the study. Feedback will be provided from their CF physiotherapists.

The comparator group will not receive any feedback on their Fitbit data. After 12 weeks both groups will be re-assessed. Thereafter, both groups will continue with the Fitbits alone for 12 weeks. Finally outcome measures including lung function, physical activity levels, aerobic capacity, quality of life, sleep quality, muscle mass and well-being will be re-assessed again at 24 weeks.

Following the intervention semi structured interviews will be conducted to qualitatively establish satisfaction with the interventions and provide insight into barriers and enablers to achieving goals and physical activity levels.The results of this study may provide valuable insights into potential interventions to optimise the health and well-being of PWCF.

Study Overview

• Status: Completed
• Conditions: Cystic Fibrosis
• Intervention / Treatment: Other: Fitness tracker with goal setting and text message feedback; Other: Fitness Tracker only

• Study Type: Interventional
• Enrollment (Actual): 60
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Ireland
  • Limerick, Ireland
    • University Hospital Limerick

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

• Clinically stable CF patients
• Age > 18 years
• Confirmed diagnosis of CF
• Access to a smartphone/tablet to access and upload to Fitbit Application.
• Capacity and willingness to give explicit informed consent

Exclusion Criteria:

• FEV1 < 25%.
• Patients on the waiting list for lung transplantation and those who have undergone lung transplantation.
• Patients with an exacerbation in the four weeks prior to the study. For the purpose of this study pulmonary exacerbation will be defined as acute or subacute worsening of respiratory symptoms which warrant change in treatment (i.e., new oral or intravenous antibiotics). Patients can undergo testing once they are finished their antibiotics and deemed clinically stable.
• Patients dependent on supplemental oxygen for exercise.
• Pregnancy
• Participation in another clinical trial up to 4 weeks prior to the first baseline visit

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Fitbit plus personalised text messaging & Goal Setting	Other: Fitness tracker with goal setting and text message feedback; Participants provided with a Fitbit and this will also be linked to Fitabase. The physiotherapist will discuss the participants' baseline physical activity levels and individual patient centred short and long-term goals will be set with each participant. Every week participants will be contacted via text message by their CF physiotherapist. The physiotherapist will review their online data and will provide feedback and encouragement on their progress. Goals will be reviewed for each participant.
Active Comparator: Fitbit Only	Other: Fitness Tracker only; Participants will be provided with the Fitbit and educated on how to use it. This will be linked to "Fitabase", an online monitoring system for data collection purposes, with the consent of the participants. However no goal setting will be completed and no feedback will be provided to the participants on their physical activity levels

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in forced expiratory volume in 1 second (FEV1) (%predicted)	Spirometry	Baseline to 3 months and Baseline to 6 months
Change in peak oxygen uptake (% predicted)	Cardiopulmonary Exercise Testing	Baseline to 3 months and Baseline to 6 months
Change in number of steps per day	Fitbit/Activpal	Baseline to 3 months and Baseline to 6 months

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Change in maximal aerobic power (%predicted)	Cardiopulmonary Exercise Testing	Baseline to 3 months and Baseline to 6 months
Change in forced expiratory volume (FVC) (%predicted)	Spirometry	Baseline to 3 months and Baseline to 6 months
Change in grip strength	Hand Dynamometry	Baseline to 3 months and Baseline to 6 months
Change in body mass index (kg/m2)	SECA Medical Body Composition Analyser	Baseline to 3 months and Baseline to 6 months
Change in muscle mass (kg)	SECA Medical Body Composition Analyser	Baseline to 3 months and Baseline to 6 months
Change in percent body fat	SECA Medical Body Composition Analyser	Baseline to 3 months and Baseline to 6 months
Change in Cystic Fibrosis Quality of Life Scale (CFQR)	Measurement of the quality of life by the Cystic Fibrosis Questionnaire Revised (CFQ-R, Quality of life domains: Physical, role/school, vitality, emotion, social, body image, eating, treatment burden, health perceptions. Symptom scales: Weight, respiratory, and digestion). There are 5 distinct 4-point Likert scale. Scores range from 0 to 100, with higher scores indicating better health.	Baseline to 3 months and Baseline to 6 months
Change in self reported physical activity (International Physical Activity Questionnaire Short Form)	International Physical Activity Questionnaire. This measure assesses the types of intensity of physical activity and sitting time that people do as part of their daily lives are considered to estimate total physical activity in MET-min/week and time spent sitting. It assesses 7 items to get a global score and then categorizes physical activity into low, moderate or high.	Baseline to 3 months and Baseline to 6 months
Pittsburgh Sleep Quality Index	The Pittsburgh Sleep Quality Index (PSQI) is a self-report questionnaire that assesses sleep quality over a 1-month time interval. Each item is weighted on a 0-3 interval scale. The global PSQI score is then calculated by totaling the seven component scores, providing an overall score ranging from 0 to 21, where lower scores denote a healthier sleep quality.	Baseline to 3 months and Baseline to 6 months
The University of California San Diego (UCSD) Shortness of Breath Questionnaire	To assess dyspnea associated with activities of daily living (ADLs). There are 24 items on this questionnaire. Each item is assessed on a 6-point scale (0 = "not at all" to 5 = "maximal or unable to do because of breathlessness"). Scores range from 0 to 120 with higher scores indicating activities of daily living are extremely limited by shortness of breath.	Baseline to 3 months and Baseline to 6 months
Change in wellbeing	Alfred Wellness Score. This questionnaire assesses state of wellness to assist in providing best health care. There are 10 questions which are scored from 0-10. 10 reflects most well state of being possible while zero reflects least well state. Scores range from 0-100 with higher scores indicating good state of wellness.	Baseline to 3 months and Baseline to 6 months
Change in number of minutes spent in moderate to vigorous physical activity (MVPA)	Fitbit/Activpal	Baseline to 3 months and Baseline to 6 months

Other Outcome Measures

Outcome Measure	Time Frame
Time to exacerbation	Baseline to 3 months and Baseline to 6 months
Semi Structured Interviews	At 6 months

Collaborators and Investigators

• Sponsor: University of Limerick
• Investigators: Principal Investigator: Audrey Tierney, PhD, University of Limerick; Principal Investigator: Roisin Cahalan, PhD, University of Limerick

Publications and helpful links

General Publications

• Curran M, Tierney AC, Collins L, Kennedy L, McDonnell C, Jurascheck AJ, Sheikhi A, Walsh C, Button B, Galvin R, Casserly B, Cahalan R. Steps Ahead: optimising physical activity in adults with cystic fibrosis: Study Protocol for a pilot randomised trial using wearable technology, goal setting and text message feedback. HRB Open Res. 2020 Nov 16;3:21. doi: 10.12688/hrbopenres.13025.3. eCollection 2020.

Study record dates

Study Major Dates

• Study Start (Actual): October 1, 2018
• Primary Completion (Actual): June 28, 2020
• Study Completion (Actual): June 28, 2020

Study Registration Dates

• First Submitted: September 3, 2018
• First Submitted That Met QC Criteria: September 12, 2018
• First Posted (Actual): September 14, 2018

Study Record Updates

• Last Update Posted (Actual): March 25, 2025
• Last Update Submitted That Met QC Criteria: January 28, 2025
• Last Verified: January 1, 2025

More Information

Terms related to this study

• Keywords: Cystic Fibrosis, CF
• Additional Relevant MeSH Terms: Pathologic Processes; Genetic Diseases, Inborn; Respiratory Tract Diseases; Digestive System Diseases; Lung Diseases; Infant, Newborn, Diseases; Pancreatic Diseases; Fibrosis; Cystic Fibrosis
• Other Study ID Numbers: CF UHL UL

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No