title: Can static foot posture measurements predict regional plantar surface area?
abstract: BACKGROUND
  The intent of this study was to determine if the use of a single or combination of static foot posture measurements can be used to predict rearfoot, midfoot, and forefoot plantar surface area in individuals with pronated or normal foot types.
  
  
  METHODS
  Twelve foot measurements were collected on 52 individuals (mean age 25.8 years) with the change in midfoot width used to place subjects in a pronated or normal foot mobility group. Dynamic plantar contact area was collected during walking with a pressure sensor platform. The 12 measures were entered into a stepwise regression analysis to determine the optimal set of measures associated with regional plantar surface area.
  
  
  RESULTS
  A two variable model was found to describe the relationship between the foot measurements and forefoot plantar contact area (r(2)=0.79, p<0.0001). A four variable model was found to describe the relationship between the foot measurements and midfoot plantar contact area (r(2)=0.85, p<0.0001) in those individuals with a 1.26cm or greater change in midfoot width.
  
  
  CONCLUSIONS
  The results indicate that clinicians can use a combination of simple, reliable and time efficient foot measures to explain 79% and 85% of the plantar surface area in the forefoot and midfoot, respectively.
authors.affiliation: Regis University, School of Physical Therapy, 3333 Regis Boulevard, G-4, Denver, CO 80221, United States. Electronic address: tmcpoil@regis.edu.
authors.forename: Thomas G
authors.initials: TG
authors.lastname: McPoil
authors.affiliation: Regis University, School of Physical Therapy, 3333 Regis Boulevard, G-4, Denver, CO 80221, United States.
authors.forename: Mathew
authors.initials: M
authors.lastname: Haager
authors.affiliation: Regis University, School of Physical Therapy, 3333 Regis Boulevard, G-4, Denver, CO 80221, United States.
authors.forename: John
authors.initials: J
authors.lastname: Hilt
authors.affiliation: Regis University, School of Physical Therapy, 3333 Regis Boulevard, G-4, Denver, CO 80221, United States.
authors.forename: John
authors.initials: J
authors.lastname: Klapheke
authors.affiliation: Regis University, School of Physical Therapy, 3333 Regis Boulevard, G-4, Denver, CO 80221, United States.
authors.forename: Ray
authors.initials: R
authors.lastname: Martinez
authors.affiliation: Regis University, School of Physical Therapy, 3333 Regis Boulevard, G-4, Denver, CO 80221, United States.
authors.forename: Cory
authors.initials: C
authors.lastname: VanSteenwyk
authors.affiliation: Regis University, School of Physical Therapy, 3333 Regis Boulevard, G-4, Denver, CO 80221, United States.
authors.forename: Nicholas
authors.initials: N
authors.lastname: Weber
authors.affiliation: Northern Arizona University, P.O. Box 15105, Flagstaff, AZ 86011, United States.
authors.forename: Mark W
authors.initials: MW
authors.lastname: Cornwall
authors.affiliation: Regis University, School of Physical Therapy, 3333 Regis Boulevard, G-4, Denver, CO 80221, United States.
authors.forename: Michael
authors.initials: M
authors.lastname: Bade
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D005260:Female; D005528:Foot / Q000033:anatomy & histology / Q000502:physiology*; D006801:Humans; D008297:Male; D011187:Posture / Q000502:physiology*; D011237:Predictive Value of Tests; D011312:Pressure; D016474:Weight-Bearing / Q000502:physiology*
keywords: Foot mobility; Foot posture; Plantar surface area; Reliability