title: Arch height index measurement system: establishment of reliability and normative values.
abstract: BACKGROUND
  The purposes of this study were 1) to determine the intrarater and interrater reliability of the arch height index measurement system device, 2) to establish population normative values for the arch height index in recreational runners, and 3) to compare arch height index values between the right and left feet and between genders.
  
  
  METHODS
  Eleven subjects were used to establish intrarater and interrater reliability of the arch height index measurement system. This system was then used to measure the arch height index of 100 recreational runners.
  
  
  RESULTS
  Measurements taken with the arch height index measurement system device exhibited high intrarater and interrater reliability. The mean +/- SD arch height index of the recreational runners was 0.340 +/- 0.030. Men had larger feet than women, but the arch height index between genders was similar.
  
  
  CONCLUSIONS
  The arch height index measurement system device is reliable to use between testers while simplifying the measurement procedure for recording the arch height index. The arch height index may be helpful in identifying potential structural factors that predispose individuals to lower-extremity injuries.
authors.affiliation: Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. rb83@evansville.edu
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Butler
authors.forename: Howard
authors.initials: H
authors.lastname: Hillstrom
authors.forename: Jinsup
authors.initials: J
authors.lastname: Song
authors.forename: Christine J
authors.initials: CJ
authors.lastname: Richards
authors.forename: Irene S
authors.initials: IS
authors.lastname: Davis
mesh_terms: D000293:Adolescent; D000328:Adult; D000886:Anthropometry / Q000295:instrumentation*; D005260:Female; D005528:Foot; D006801:Humans; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D012016:Reference Values; D015203:Reproducibility of Results; D012420:Running; D012737:Sex Factors; D013640:Tarsal Joints; D016474:Weight-Bearing