title: Arch height index normative values of college-aged women using the arch height index measurement system.
abstract: BACKGROUND
  The arch height index measurement system (AHIMS) device has been found to be a reliable and valid instrument for measuring the arch height index (AHI) of the feet of individuals; however, normative data for the AHI are lacking for various populations. Therefore, the purposes of this study were to establish population normative AHI values for college-aged females and to compare the observed AHI data across right and left feet.
  
  
  METHODS
  Seventy-nine college-aged females served as study participants, and both feet were measured using the AHIMS in the seated and standing positions. The AHI was calculated as the ratio of the dorsum height of the foot at half the total foot length to the length of the foot from the heel to the base of the first metatarsophalangeal joint.
  
  
  RESULTS
  The mean ± SD AHI values for the left and right feet in the seated position were 0.355 ± 0.031 and 0.369 ± 0.034, respectively. The mean ± SD AHI values for the left and right feet in the standing position were 0.338 ± 0.031 and 0.343 ± 0.033, respectively. There were significant differences observed between the left and right feet for the seated (P < .001) and standing (P = .003) positions.
  
  
  CONCLUSIONS
  Normative values were established for college-aged females for the AHI using the AHIMS. Differences were noted between the right and left feet of the participants sampled. Although normative values were obtained, we caution against using these values to classify foot arch types based solely on a sample of the population studied.
authors.affiliation: Department of Kinesiology, Auburn University, Auburn, AL 36849, USA. weimawh@auburn.edu
authors.forename: Wendi H
authors.initials: WH
authors.lastname: Weimar
authors.forename: Justin F
authors.initials: JF
authors.lastname: Shroyer
mesh_terms: D001696:Biomechanical Phenomena; D015992:Body Mass Index; D005260:Female; D005528:Foot / Q000033:anatomy & histology* / Q000502:physiology; D006801:Humans; D011187:Posture; D011312:Pressure; D055815:Young Adult