Comparison of the Y-Balance Test and Star Excursion Balance Test: Utilization of a Discrete Event Simulation

Context: The Y-Balance Test (YBT) and Star Excursion Balance Test (SEBT) are commonly used to detect deficits in dynamic postural control. There is a lack of literature on the differences in reach distances and efficiency of the tests. Objective: To compare the reach distances of the YBT and SEBT. An additional aim was to compare the time necessary to administer the 2 tests and utilize a discrete event simulation to determine the number of participants who could be screened within different scenarios. Design: Cross-sectional. Laboratory Patients: Twenty-four physically active individuals between the ages of 18- 35 years volunteered to participate in this study (M/F: 11/13; age 22.78 [2.63] y, height 68.22 [4.32] cm, mass 173.27 [10.96] kg). Intervention: The participants reported to the laboratory on one occasion and performed the YBT and SEBT. The anterior, posteromedial, and posterolateral reach distances were recorded for each test. In addition, the time to administer each test was recorded in seconds. Main Outcome Measures: The average reach distances and time for each test were used for analysis. Paired t tests were utilized to compare the reach distances and time to administer the 2 tests. A discrete event simulation was used to determine how many participants could be screened using each test. Results: The anterior reach for the SEBT (64.52% [6.07%]) was significantly greater than the YBT (61.66% [6.37%]; P < .01). The administration time for the YBT (512.42 [123.97] s) was significantly longer than the administration time for the SEBT (364.96 [69.46] s; P < .01). The discrete event simulation revealed more participants could be screened using the SEBT when compared with the YBT for every situation. Conclusion: Scores on the anterior reach of the SEBT are larger when compared with the YBT. The discrete event simulation can successfully be used to determine how many participants could be screened with a certain amount of resources given the use of a specific test.