title: Physical activity assessment in cystic fibrosis: A position statement.
abstract: BACKGROUND
  The aim of this position statement was to inform the choice of physical activity tools for use within CF research and clinical settings.
  
  
  METHODS
  A systematic review of physical activity tools to explore evidence for reliability, validity, and responsiveness. Narrative answers to "four key questions" on motion sensors, questionnaires and diaries were drafted by the core writing team and then discussed at the Exercise Working Group in ECFS Lisbon 2013.
  
  
  RESULTS
  Our current position is that activity monitors such as SenseWear or ActiGraph offer informed choices to facilitate a comprehensive assessment of physical activity, and should as a minimum report on dimensions of physical activity including energy expenditure, step count and time spent in different intensities and sedentary time. The DigiWalker pedometer offers an informed choice of a comparatively inexpensive method of obtaining some measurement of physical activity. The HAES represents an informed choice of questionnaire to assess physical activity. There is insufficient data to recommend the use of one diary over another. Future research should focus on providing additional evidence of clinimetric properties of these and new physical activity assessment tools, as well as further exploring the added value of physical activity assessment in CF.
authors.affiliation: Centre for Health and Rehabilitation Technology (CHaRT), Institute of Nursing and Health Research, Ulster University, Northern Ireland BT37 0QB, United Kingdom; Northern Ireland Clinical Research Network: Respiratory Health, Belfast Health and Social Care Trust, Belfast, United Kingdom. Electronic address: jm.bradley@ulster.ac.uk.
authors.forename: Judy
authors.initials: J
authors.lastname: Bradley
authors.affiliation: Centre for Health and Rehabilitation Technology (CHaRT), Institute of Nursing and Health Research, Ulster University, Northern Ireland BT37 0QB, United Kingdom. Electronic address: b.oneill@ulster.ac.uk.
authors.forename: Brenda
authors.initials: B
authors.lastname: O'Neill
authors.affiliation: Centre for Health and Rehabilitation Technology (CHaRT), Institute of Nursing and Health Research, Ulster University, Northern Ireland BT37 0QB, United Kingdom; Northern Ireland Clinical Research Network: Respiratory Health, Belfast Health and Social Care Trust, Belfast, United Kingdom. Electronic address: lisa.kent@belfastttrust.hscni.net.
authors.forename: Lisa
authors.initials: L
authors.lastname: Kent
authors.affiliation: Child Development & Exercise Center, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands.
authors.forename: Erik H J
authors.initials: EH
authors.lastname: Hulzebos
authors.affiliation: Department of Pediatric Pulmonology, Wilhelmina Children's Hospital, University Medical Center Utrecht, The Netherlands.
authors.forename: Bert
authors.initials: B
authors.lastname: Arets
authors.affiliation: University Children's Hospital, Würzburg, Germany.
authors.forename: Helge
authors.initials: H
authors.lastname: Hebestreit
mesh_terms: D003550:Cystic Fibrosis / Q000503:physiopathology*; D006801:Humans; D008991:Monitoring, Physiologic / Q000295:instrumentation; D009043:Motor Activity; D011795:Surveys and Questionnaires
keywords: Physical activity assessment; Position statement