Asymmetry in Star Excursion Balance Test Related to Asymmetry in Other Movements

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Overmoyer GV, Reiser RF. Relationships between asymmetries in functional movements and the star excursion balance test. J Strength Cond Res. 2013 Jul;27(7):2013-24.

Balance Test - Post-Lat

“Correlations between reach directions in the SEBT improved in the subset comparisons but would not be considered strong. The results suggest that asymmetries are more likely to be expressed in multiple tasks as the bilateral difference increases, that intensity of effort plays a key role in the expression of asymmetries during bilateral tasks, tasks most relevant to the sport should be used when assessing athletes, and though not replacing functional tasks, the SEBT may serve an important role in the diagnosis of LEFA.”

TAKE HOME: While asymmetry in fundamental movements (squat and Star Excursion Balance Test-the reach directions of the Y Balance Test) has some relationship to asymmetry in higher load activities (counter-movement jump and single-leg drop landing), this is not always the case. Just because someone is symmetrical with higher level activities, it does not mean that they do not have underlying fundamental movement asymmetry related to risk of injury. Be sure to consider this in your pre-season and return to sport testing.

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