Comparison of modified CKCUEST tests in the assessment of shoulder stability in basketball athletes

Abstract

Introduction: Shoulder stability is a determining factor in sports performance and injury prevention. Several investigations have explored the effectiveness of functional tests such as the CKCUEST (Closed Kinetic Chain Upper Extremity Stability Test) and the postural balance test known as the Y Balance Test. The main objective of the study is to identify which variant of the CKCUEST best correlates with the results of the Y Balance Test. Materials and methods: For the methodology, one hundred basketball athletes participated, to whom the established tests were applied: the CKCUEST with its respective variants and the Y Balance Test, each test was performed in three sessions, with a frequency of three repetitions per session. Subsequently, data collection was carried out to perform statistical analyses. Results: The established results indicate that there is no linear relationship between the CKCUEST and the Y balance test. For the second objective, the approximate mean of the differences in the biacromial method is 5, while in the 50% height method it is 2.5. This indicates that the fifty percent height method provides measurements closer to the reference value. Discussion: The CKCUEST and the YBT for evaluating shoulder stability did not show a statistically significant correlation, which could be due to the fact that each evaluates different aspects of physical performance. Conclusions: Furthermore, the standard CKCUEST correlates with the modified 50% half-height version and the biacromial version, suggesting that, to evaluate shoulder stability in Ecuadorian athletes, it is advisable to use the adjusted 50% height or biacromial version.