Kinematic predictors of performance on the Star Excursion Balance Test.
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.
Robinson
Richard
R
Dept of Kinesiology, University of Indianapolis, Indianapolis, IN 46227, USA.
Gribble
Phillip
P
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