| dc.description.abstract | Background: The Star Excursion Balance Test (SEBT) consists of 8 directional foot
reaches on each leg, and it is used to evaluate dynamic balance and postural control in
single leg stance. The SEBT has been able to differentiate those with chronic ankle
instability, anterior cruciate ligament injuries and other musculoskeletal deficits in the
lower extremity. However, three-dimensional joint movements of the lower extremities
elicited by the different foot reaches and how they correspond to normative range of
motion (ROM) values have not been systematically described in the literature.
Furthermore, based on available kinematic studies on the SEBT it is apparent that none
of the tests elicit limited transverse plane joint movements. Aim: The aim of this study
is to 1) perform a kinematic 3D analysis of lower extremity joints and trunk in all planes
of motion during performance of the SEBT, 2) compare joint movements elicited by the
SEBT with normative ROM reference values, 3) establish joint movement predictors of
reach distance of the SEBT and 4) introduce two new rotational tests for evaluation of
transverse plane lower extremity joint movements. Methods: Twenty male participants
were recruited and completed the all SEBT tests for both legs in the same order. Three
trials of all SEBT tests were captured by fifteen Oqus-4 infrared cameras to collect
kinematic data from forty-eight spherical reflective markers attached to the foot, leg,
thigh, pelvis and trunk segments using Qualisys Track Manager (QTM) (Qualisys AB,
Gothenburg, Sweden) recorded at 480Hz. The test with maximum reach was used for
analysis. Joint movements were calculated as the difference from the natural upright
starting position to the maximum reach position for each test. | nb_NO |
