title: The effect of patellar taping on joint reaction forces during squatting in subjects with Patellofemoral Pain Syndrome (PFPS).
abstract: OBJECTIVE
  The mechanisms of pain reduction have not completely been established following patellar taping in subjects with patellofemoral pain syndrome (PFPS); although it might be related to alteration in the kinetics of the patellofemoral joint.
  
  
  METHODS
  Patellofemoral Joint Reaction Force (PFJRF) of eighteen subjects with PFPS and eighteen healthy subjects as controls were assessed by a motion-analysis system and one force plate. This procedure was performed on the affected knee of subjects with PFPS, before, during and finally after patellar taping during unilateral squatting. A similar procedure was also performed on the unaffected knees of both groups.
  
  
  RESULTS
  The mean values of PFJRF prior to taping (2025N, SD 347N) were decreased significantly following a period of taping (1720N, SD 303N) (P<0.05). There were no significant differences between the mean values of PFJRF among controls (1922N, SD 398N) and subjects with PFPS prior to taping (P>0.05) which might be due to small sample size in both groups and large variability observed in the study.
  
  
  CONCLUSIONS
  Decreased values of PFJRF may explain the mechanism of pain reduction following patellar taping in subjects with PFPS.
authors.affiliation: Department of Physiotherapy, Faculty of Rehabilitation Sciences, Isfahan University of Medical Sciences, Isfahan 8174673461, Islamic Republic of Iran. mostamand@rehab.mui.ac.ir
authors.forename: Javid
authors.initials: J
authors.lastname: Mostamand
authors.forename: Dan L
authors.initials: DL
authors.lastname: Bader
authors.forename: Zoë
authors.initials: Z
authors.lastname: Hudson
mesh_terms: D000328:Adult; D055052:Athletic Tape; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D008297:Male; D010329:Patella; D057071:Patellofemoral Joint / Q000503:physiopathology*; D046788:Patellofemoral Pain Syndrome / Q000503:physiopathology / Q000628:therapy*