title: The effect of various degrees of foot posture on standing balance in a healthy adult population.
abstract: OBJECTIVE
  Foot biomechanics plays a significant role in the quality of standing and walking. It has been believed that even minor biomechanical alterations in the foot support surface may influence strategies to maintain body standing balance. Hence, the aim of this study was to investigate the role of various degrees of foot posture on static and dynamic standing balance components in a healthy adult population.
  
  
  METHODS
  A convenience sample of 41 healthy adult subjects with a mean age of 24.3 ± 6.4 years and a body mass index (BMI) of 29 kg/m(2) participated in this study. On the basis of foot posture index (FPI), the participants were allocated into either group A or B. Group A included 16 subjects with an FPI range of 6-11 whereas group B included 25 subjects with an FPI range of 0-5. Standing balance components were analyzed using computerized dynamic posturography (CDP) by the Modified Clinical Test of Sensory Interaction on Balance (mCTSIB) and the limit of stability (LOS).
  
  
  RESULTS
  Spearman's correlation coefficient showed a significant correlation between the standing dynamic balance and FPI in group B but not in group A. Moreover, it also showed no significant correlation between the standing static balance component and FPI in either group A or B.
  
  
  CONCLUSIONS
  This study concluded that higher degrees of FPI might have an effect on standing dynamic balance in healthy subjects. These components may require extra attention during the preventive aspects of rehabilitation.
authors.affiliation: a Department of Rehabilitation Health Sciences , College of Applied Medical Sciences, King Saud University , Riyadh , Kingdom of Saudi Arabia.
authors.forename: Sami S
authors.initials: SS
authors.lastname: Al Abdulwahab
authors.affiliation: a Department of Rehabilitation Health Sciences , College of Applied Medical Sciences, King Saud University , Riyadh , Kingdom of Saudi Arabia.
authors.forename: Shaji John
authors.initials: SJ
authors.lastname: Kachanathu
mesh_terms: D000293:Adolescent; D000328:Adult; D001696:Biomechanical Phenomena; D017076:Computer-Aided Design; D005260:Female; D005528:Foot / Q000502:physiology*; D064368:Healthy Volunteers; D006801:Humans; D008297:Male; D017711:Nonlinear Dynamics; D004856:Postural Balance / Q000502:physiology*; D011187:Posture / Q000502:physiology*; D055815:Young Adult
keywords: Dynamic balance; flat foot; foot posture index