title: Kinematic predictors of performance on the Star Excursion Balance Test.
abstract: BACKGROUND
  The Star Excursion Balance Test (SEBT) is composed of 8 reaching directions that are potentially measuring the same functional component, leading to the suggestion that the number of reach directions could be reduced without compromising the assessment of dynamic postural control.
  
  
  OBJECTIVE
  To determine whether the relationship of stance-leg angular displacement on normalized reach distance is a source of dynamic-postural-control measurement redundancy.
  
  
  METHODS
  Single-session within-subjects design.
  
  
  METHODS
  Athletic training research laboratory.
  
  
  METHODS
  10 women and 10 men.
  
  
  METHODS
  None.
  
  
  METHODS
  Normalized reach distance and angular displacement at the knee and hip.
  
  
  RESULTS
  Stepwise regression revealed that hip flexion and knee flexion, separately and in combination, accounted for 62% to 95% of the variance in reach distances.
  
  
  CONCLUSIONS
  Similarity in lower extremity function could account for the previously observed measurement redundancy in the SEBT.
authors.affiliation: Dept of Kinesiology, University of Indianapolis, Indianapolis, IN 46227, USA.
authors.forename: Richard
authors.initials: R
authors.lastname: Robinson
authors.forename: Phillip
authors.initials: P
authors.lastname: Gribble
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D005080:Exercise Test; D005163:Factor Analysis, Statistical; D005260:Female; D006615:Hip / Q000502:physiology*; D006801:Humans; D007717:Knee / Q000502:physiology*; D008297:Male; D015233:Models, Statistical; D010865:Pilot Projects; D004856:Postural Balance / Q000502:physiology*; D012044:Regression Analysis; D013223:Statistics as Topic; D013647:Task Performance and Analysis