Arch height index measurement system: establishment of reliability and normative values.
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.
Butler
Robert J
RJ
Department of Exercise and Sport Science, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. rb83@evansville.edu
Hillstrom
Howard
H
Song
Jinsup
J
Richards
Christine J
CJ
Davis
Irene S
IS
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