Reliability and Validity of the Footprint Assessment Method Using Photoshop XXXX Software.

@entity1 @entity10718
BACKGROUND: Several sophisticated methods of footprint analysis currently exist. However, it is sometimes useful to apply standard measurement methods of recognized evidence with an easy and quick application. We sought to assess the reliability and validity of a new method of footprint assessment in a healthy population using Photoshop @entity10718 software (Adobe Systems Inc, San Jose, California). METHODS: Forty-two footprints, corresponding to 21 healthy individuals (11 @entity1 with a mean    SD age of 20.45    2.16 years and 10 @entity1 with a mean    SD age of 20.00    1.70 years) were analyzed. Footprints were recorded in static bipedal standing position using optical podography and digital photography. Three trials for each @entity1 were performed. The Hern  ndez-Corvo, Chippaux-Smirak, and Staheli indices and the Clarke angle were calculated by manual method and by computerized method using Photoshop @entity10718 software. Test-retest was used to determine reliability. Validity was obtained by intraclass correlation coefficient (ICC). RESULTS: The reliability test for all of the indices showed high values (ICC, 0.98-0.99). Moreover, the validity test clearly showed no difference between techniques (ICC, 0.99-1). CONCLUSIONS: The reliability and validity of a method to measure, assess, and record the podometric indices using Photoshop @entity10718 software has been demonstrated. This provides a quick and accurate tool useful for the digital recording of morphostatic foot study parameters and their control.
