Test-Retest Reliability of the Closed Kinetic Chain Upper Extremity Stability Test: A Clinical Field Test

Context:Functional testing of patients is essential to clinicians because it provides objective data for documentation that can be used for serial reassessment and progression through a rehabilitation program. Furthermore, new tests should require minimal time, space, and money to implement.Purpose:To determine the test-retest reliability of the Closed Kinetic Chain (CKC) Upper Extremity Stability Test.Participants:Twenty-four male college students.Methods:Each subject was tested initially and again 7 days later. Each subject performed 1 submaximal test followed by 3 maximal efforts. A 45-second rest was given after each 15-second test. The 2 maximal-test scores were averaged and compared with those from the retest.Results:The intraclass correlation coefficient was .922 for test-retest reliability. A paired-samplesttest (.927) was conducted, and the coefficient of stability was .859. The results indicate that the CKC Upper Extremity Stability Test is a reliable evaluation tool.