title: Open source posturography.
abstract: CONCLUSIONS
  The proposed validation goal of 0.9 in intra-class correlation coefficient was reached with the results of this study. With the obtained results we consider that the developed software (RombergLab) is a validated balance assessment software. The reliability of this software is dependent of the used force platform technical specifications.
  
  
  OBJECTIVE
  Develop and validate a posturography software and share its source code in open source terms.
  
  
  METHODS
  Prospective non-randomized validation study: 20 consecutive adults underwent two balance assessment tests, six condition posturography was performed using a clinical approved software and force platform and the same conditions were measured using the new developed open source software using a low cost force platform. Intra-class correlation index of the sway area obtained from the center of pressure variations in both devices for the six conditions was the main variable used for validation.
  
  
  RESULTS
  Excellent concordance between RombergLab and clinical approved force platform was obtained (intra-class correlation coefficient =0.94). A Bland and Altman graphic concordance plot was also obtained. The source code used to develop RombergLab was published in open source terms.
authors.affiliation: a Otolaryngology Unit Orlgipuzkoa. Clínica Quirón , San Sebastián , Spain.
authors.forename: Jorge
authors.initials: J
authors.lastname: Rey-Martinez
authors.affiliation: b Department of Otolaryngology , Clínica Universidad de Navarra , Pamplona , Spain.
authors.forename: Nicolás
authors.initials: N
authors.lastname: Pérez-Fernández
mesh_terms: D000293:Adolescent; D000328:Adult; D003943:Diagnostic Techniques, Neurological; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010036:Otolaryngology; D004856:Postural Balance; D011446:Prospective Studies; D012986:Software Validation; D055815:Young Adult
keywords: COP area calculation; Confidence ellipse; Xcode; force platform; objective-c; open source software; posturography; validation