title: Defining phases for the sit-to-walk movement.
abstract: OBJECTIVE
  To define phases of the sit-to-walk movement and test their consistency in a normal population.
  
  
  METHODS
  An observational study of thirteen healthy volunteers.
  
  
  BACKGROUND
  Moving from sitting to walking is a daily activity that may present difficulty for some populations in terms of control and stability.
  
  
  METHODS
  The movement was partitioned into phases according to changes in ground reaction forces and peak velocity of the total body centre of mass. Consistency of each phase duration was assessed.
  
  
  RESULTS
  Four phases of sit-to-walk were defined; flexion momentum, extension, unloading and stance. ICC scores for phase duration ranged from 0.54 (extension) to 0.81 (stance).
  
  
  CONCLUSIONS
  This is the first study to define distinct phases of the sit-to-walk movement. There was moderate to good consistency for phase duration.
  
  
  CONCLUSIONS
  By defining and testing phases of the sit-to-walk movement this study enhances understanding of this everyday movement and provide a model for future research.
authors.affiliation: Division of Physiotherapy, School of Health and Social Care, Glasgow Caledonian University, City Campus, Cowcaddens Road, Glasgow G4 OBA, Scotland, UK. a.kerr@gcal.ac.uk
authors.forename: Andy
authors.initials: A
authors.lastname: Kerr
authors.forename: B
authors.initials: B
authors.lastname: Durward
authors.forename: K M
authors.initials: KM
authors.lastname: Kerr
mesh_terms: D000203:Activities of Daily Living; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008954:Models, Biological; D009068:Movement / Q000502:physiology*; D010808:Physical Examination / Q000379:methods*; D004856:Postural Balance / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013314:Stress, Mechanical; D013647:Task Performance and Analysis; D016138:Walking / Q000502:physiology*