title: APOS therapy improves clinical measurements and gait in patients with knee osteoarthritis.
abstract: BACKGROUND
  The purpose of the study was to investigate the changes in gait patterns and clinical measurements following treatment with a novel biomechanical device on patients with knee osteoarthritis.
  
  
  METHODS
  Forty six patients with bilateral knee osteoarthritis were analyzed. Patients completed a gait test, Western Ontario and McMaster Osteoarthritis Index (WOMAC) questionnaire and SF-36 Health Survey at baseline and after 12 weeks. The biomechanical device was individually calibrated to each patient at baseline to allow training under reduced pain.
  
  
  RESULTS
  Gait velocity, step length and single limb support improved significantly and toe out angle decreased significantly (10%, 6%, 1% and 2%, respectively). WOMAC-Pain and WOMAC-Function significantly decreased (26% and 34%, respectively), and SF-36 score significantly increased following the 12 weeks of treatment.
  
  
  CONCLUSIONS
  Our results suggest an overall improvement in the gait patterns, level of pain and level of function of patients with knee osteoarthritis following 12 weeks of treatment with the novel biomechanical device.
authors.affiliation: APOS Research Group, Herzliya, Israel.
authors.forename: Avi
authors.initials: A
authors.lastname: Elbaz
authors.forename: Amit
authors.initials: A
authors.lastname: Mor
authors.forename: Ganit
authors.initials: G
authors.lastname: Segal
authors.forename: Eytan
authors.initials: E
authors.lastname: Debbi
authors.forename: Amir
authors.initials: A
authors.lastname: Haim
authors.forename: Nahum
authors.initials: N
authors.lastname: Halperin
authors.forename: Ronen
authors.initials: R
authors.lastname: Debi
mesh_terms: D000368:Aged; D001696:Biomechanical Phenomena; D015992:Body Mass Index; D004867:Equipment Design; D005121:Extremities / Q000473:pathology; D005684:Gait; D006801:Humans; D007249:Inflammation; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000175:diagnosis* / Q000628:therapy*; D010146:Pain; D012189:Retrospective Studies; D011795:Surveys and Questionnaires; D013997:Time Factors