title: Development and reliability of an observational gait analysis tool for children with Down syndrome.
abstract: OBJECTIVE
  To develop an observational gait analysis tool for children with Down syndrome and to examine its reliability.
  
  
  METHODS
  Two physical therapists and 5 physical therapy students participated in this study. Sixty videos were examined to determine interrater reliability. Four months later, 15 of those 60 videos were reexamined twice (2 weeks apart) by the students for intrarater reliability. Intraclass correlation coefficients for interrater and intrarater reliability, percentage of agreement, and standard error of measurement were calculated.
  
  
  RESULTS
  Interrater reliability was 0.663, intrarater reliability was 0.616-0.877, standard error of measurement was 1.89, and absolute agreement was found for 35.56% of the trials.
  
  
  CONCLUSIONS
  Good reliability was found, but further study is needed to determine validity and clinical relevance.
authors.affiliation: Krannert School of Physical Therapy, University of Indianapolis, Indianapolis, Indiana 46227, USA. kmartin@uindy.edu
authors.forename: Kathy
authors.initials: K
authors.lastname: Martin
authors.forename: Donald
authors.initials: D
authors.lastname: Hoover
authors.forename: Erin
authors.initials: E
authors.lastname: Wagoner
authors.forename: Teresa
authors.initials: T
authors.lastname: Wingler
authors.forename: Tara
authors.initials: T
authors.lastname: Evans
authors.forename: Jamie
authors.initials: J
authors.lastname: O'Brien
authors.forename: Julie
authors.initials: J
authors.lastname: Zeunik
mesh_terms: D002648:Child; D003627:Data Interpretation, Statistical; D004314:Down Syndrome / Q000534:rehabilitation*; D005684:Gait; D006801:Humans; D019370:Observation; D015203:Reproducibility of Results; D014741:Video Recording