The reliability and validity of a three-camera foot image system for obtaining foot anthropometrics.
The purpose was to develop a foot image capture and measurement system with web cameras (the 3-FIS) to provide reliable and valid foot anthropometric measures with efficiency comparable to that of the conventional method of using a handheld anthropometer. Eleven foot measures were obtained from 10 subjects using both methods. Reliability of each method was determined over 3 consecutive days using the intraclass correlation coefficient and root mean square error (RMSE). Reliability was excellent for both the 3-FIS and the handheld anthropometer for the same 10 variables, and good for the fifth metatarsophalangeal joint height. The RMSE values over 3 days ranged from 0.9 to 2.2 mm for the handheld anthropometer, and from 0.8 to 3.6 mm for the 3-FIS. The RMSE values between the 3-FIS and the handheld anthropometer were between 2.3 and 7.4 mm. The 3-FIS required less time to collect and obtain the final variables than the handheld anthropometer. The 3-FIS provided accurate and reproducible results for each of the foot variables and in less time than the conventional approach of a handheld anthropometer.
O'Meara
Damien
D
New South Wales Institute of Sport, Sydney Olympic Park, NSW, Australia.
Vanwanseele
Benedicte
B
Hunt
Adrienne
A
Smith
Richard
R
D000293:Adolescent; D000328:Adult; D000368:Aged; D000886:Anthropometry / Q000295:instrumentation*; D005260:Female; D005528:Foot / Q000033:anatomy & histology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010781:Photography / Q000295:instrumentation*; D015203:Reproducibility of Results