Tama ANUGRAH, Sumaryanti, Rachmah Laksmi AMBARDINI, Devi Catur WINATA
Turkish Journal of Kinesiology - 2025;11(6):307-314
The lack of established norms for assessing dynamic body balance and the uncertainty surrounding the reliability of existing tests are the reasons why many researchers are reluctant to conduct studies with participants who have Down syndrome. One form of measurement for dynamic body balance is the functional reach test. However, there is still a limited number of studies demonstrating the reliability of this test for measuring dynamic body balance in individuals with Down syndrome. Therefore, this study aims to test the reliability of the test -retest functional reach test and determine its norms in individuals with Down syndrome. The method used was a cross -sectional study involving 30 participants with Down syndrome aged 14 to 18 years. The functional reach test was conducted in three sessions (each session consisting of three test trials) for each participant. The results of the functional reach test were recorded as the average value of the last two trials from each session, and the three functional reach test values were analyzed using the intraclass correlation coefficient (ICC) in a two -way mixed model, absolute agreement type, and a 95% confidence interval . The results of the study show that the Single Measures value is 0.997 with a Sig value of 0.000, which means that the ICC value is high and highly correlated or consistent over time. The test -retest reliability of the functional reach test shows high consistency between the first test score, the second test score, and the third test score. These results can be used as a reference for future researchers to use functional reach tests to measure the dynamic balance of individuals with Down syndrome.
